CalcBright Calculators

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Tools (103)

• mortgage_calculator

  Free mortgage calculator: estimate your monthly house payment with property tax, insurance, PMI and HOA, plus a full amortization schedule and extra-payment savings. Web page: https://calcbright.com/mortgage-calculator

• loan_calculator

  Free loan and EMI calculator for personal, car, home and student loans. Get your monthly installment, total interest and a month-by-month repayment schedule. Web page: https://calcbright.com/loan-calculator

• compound_interest_calculator

  Free compound interest calculator with monthly contributions. See how savings and investments grow year by year with daily, monthly or annual compounding. Web page: https://calcbright.com/compound-interest-calculator

• salary_calculator

  Convert hourly wage to annual salary and back. Free salary calculator for daily, weekly, bi-weekly, monthly and yearly pay, with optional take-home pay after tax. Web page: https://calcbright.com/salary-calculator

• percentage_calculator

  Free percentage calculator: find X% of a number, what percent one number is of another, percentage change, increase and decrease – with step-by-step working. Web page: https://calcbright.com/percentage-calculator

• age_calculator

  Free age calculator: find your exact age in years, months, weeks and days from your date of birth, the day you were born and the countdown to your next birthday. Web page: https://calcbright.com/age-calculator

• bmi_calculator

  Free BMI calculator for adults in kg/cm or lb/ft. Get your Body Mass Index, healthy weight range, BMR and daily calories (TDEE) to lose, maintain or gain weight. Web page: https://calcbright.com/bmi-calculator

• unit_converter

  Free unit converter for length, weight, temperature, volume, area, speed, time, data, energy and pressure. Metric ↔ imperial with exact formulas and tables. Web page: https://calcbright.com/unit-converter

• currency_converter

  Free currency converter with exchange rates updated every few hours. Convert USD, EUR, GBP, INR, PKR, AED and 30+ currencies with quick conversion tables. Web page: https://calcbright.com/currency-converter

• time_zone_converter

  Free time zone converter: convert a date and time between any two cities, with daylight saving time handled automatically, plus a live world clock. Web page: https://calcbright.com/time-zone-converter

• 401k_calculator

  Free 401k calculator: project your balance at retirement from salary, contribution rate, employer match, raises and returns, with a year-by-year growth table. Web page: https://calcbright.com/401k-calculator

• apr_calculator

  Free APR calculator: find the true annual percentage rate of a loan once origination and upfront fees are included, plus the monthly payment and total cost. Web page: https://calcbright.com/apr-calculator

• area_calculator

  Free area calculator for rectangles, squares, triangles, circles, trapezoids, parallelograms and ellipses. Enter sizes to get the area and formula. Web page: https://calcbright.com/area-calculator

• auto_loan_calculator

  Free auto loan calculator: find your monthly car payment with sales tax, down payment and trade-in, plus total interest and a full amortization schedule. Web page: https://calcbright.com/auto-loan-calculator

• average_calculator

  Free average calculator: paste a list of numbers to get the mean, median, mode, range, count and sum instantly, with step-by-step working for each result. Web page: https://calcbright.com/average-calculator

• bmr_calculator

  Free BMR calculator: find your basal metabolic rate with the Mifflin–St Jeor, revised Harris–Benedict and Katch–McArdle equations, plus calories by activity. Web page: https://calcbright.com/bmr-calculator

• body_fat_calculator

  Free body fat calculator using the US Navy method: enter height, neck, waist and hip measurements to get your body fat %, ACE category, fat mass and lean mass. Web page: https://calcbright.com/body-fat-calculator

• break_even_calculator

  Free break-even calculator: enter fixed costs, price and variable cost per unit to find the break-even point in units and sales, plus the contribution margin. Web page: https://calcbright.com/break-even-calculator

• budget_calculator

  Free budget calculator using the 50/30/20 rule: split your monthly take-home pay into needs, wants and savings, or set your own percentages for a custom plan. Web page: https://calcbright.com/budget-calculator

• business_days_calculator

  Free business days calculator: count working days (Monday–Friday) and weekend days between two dates, or add business days to a date to find a deadline. Web page: https://calcbright.com/business-days-calculator

• cagr_calculator

  Free CAGR calculator: find the compound annual growth rate between a beginning and ending value over any number of years, with total growth and a yearly path. Web page: https://calcbright.com/cagr-calculator

• calorie_deficit_calculator

  Free calorie deficit calculator: get your maintenance calories, a safe daily calorie target for your weekly weight-loss goal and the weeks to your goal weight. Web page: https://calcbright.com/calorie-deficit-calculator

• calories_burned_calculator

  Free calories burned calculator: estimate calories burned walking, running, cycling, swimming, lifting and 20+ other activities from MET values and your weight. Web page: https://calcbright.com/calories-burned-calculator

• car_lease_calculator

  Free car lease calculator: estimate your monthly lease payment from price, down payment, residual, money factor or APR, term and sales tax, fully itemised. Web page: https://calcbright.com/car-lease-calculator

• case_converter

  Free case converter: change text to UPPER CASE, lower case, Title Case, Sentence case, camelCase, snake_case or kebab-case instantly. Nothing is uploaded. Web page: https://calcbright.com/case-converter

• circle_calculator

  Free circle calculator: enter the radius, diameter, circumference or area of a circle and instantly get the other three values, with formulas and working shown. Web page: https://calcbright.com/circle-calculator

• commission_calculator

  Free commission calculator: work out sales commission from the sale amount and rate, add an optional base salary and compare total earnings at other rates. Web page: https://calcbright.com/commission-calculator

• concrete_calculator

  Free concrete calculator for slabs, footings and round columns: get the volume in cubic yards and cubic meters plus how many 40, 60, 80 lb or 25 kg bags to buy. Web page: https://calcbright.com/concrete-calculator

• cooking_converter

  Free cooking converter: turn cups, tablespoons and teaspoons into grams or ounces for flour, sugar, butter, milk, oats, honey and more, with ingredient charts. Web page: https://calcbright.com/cooking-converter

• countdown_calculator

  Free countdown calculator: see how many days, weeks and months are left until Christmas, New Year or any date you choose – or how many days have passed since. Web page: https://calcbright.com/countdown-calculator

• credit_card_payoff_calculator

  Free credit card payoff calculator: see how many months it takes to clear your balance and the interest paid, or the payment needed to be debt-free by a date. Web page: https://calcbright.com/credit-card-payoff-calculator

• date_calculator

  Free date calculator: add or subtract days, weeks, months and years from any date to find the resulting date and weekday, with leap years handled. Web page: https://calcbright.com/date-calculator

• date_difference_calculator

  Free date difference calculator: count the days between two dates, plus weeks, months and years, business days and weekends, optionally including the end date. Web page: https://calcbright.com/date-difference-calculator

• day_of_week_calculator

  Free day of the week calculator: find the weekday any date falls on, past or future, with step-by-step Zeller’s congruence working and the Doomsday rule. Web page: https://calcbright.com/day-of-week-calculator

• debt_to_income_calculator

  Free debt to income ratio calculator: add up your monthly debt payments, get your DTI percentage and compare it with the 36% and 43% limits lenders use. Web page: https://calcbright.com/debt-to-income-calculator

• discount_calculator

  Free discount calculator: find the sale price and how much you save for any percent off, including stacked discounts like an extra 10% off a sale price. Web page: https://calcbright.com/discount-calculator

• dividend_yield_calculator

  Free dividend yield calculator: enter share price and dividend per share, paid yearly, quarterly or monthly, to get the yield and your annual income. Web page: https://calcbright.com/dividend-yield-calculator

• down_payment_calculator

  Free down payment calculator: see the down payment and loan amount for any home price, whether you will pay PMI, and compare 3%, 5%, 10% and 20% down. Web page: https://calcbright.com/down-payment-calculator

• electricity_cost_calculator

  Free electricity cost calculator: find how many kWh an appliance uses and what it costs to run per day, month and year from its wattage, hours and your rate. Web page: https://calcbright.com/electricity-cost-calculator

• fd_calculator

  Free FD calculator: work out the maturity amount and interest on a bank fixed deposit with quarterly, monthly, half-yearly or yearly compounding. Web page: https://calcbright.com/fd-calculator

• flooring_calculator

  Free flooring calculator: work out room area, add a waste allowance, and find how many boxes of laminate, vinyl, tile or hardwood to buy and what it will cost. Web page: https://calcbright.com/flooring-calculator

• fraction_calculator

  Free fraction calculator: add, subtract, multiply and divide fractions and mixed numbers. Get the simplified answer, mixed number, decimal and every step. Web page: https://calcbright.com/fraction-calculator

• fuel_cost_calculator

  Free fuel cost calculator: estimate the gas cost of any one-way or round trip from distance, mpg or L/100 km and fuel price, and split it between passengers. Web page: https://calcbright.com/fuel-cost-calculator

• fuel_economy_converter

  Free fuel economy converter: convert between US mpg, UK mpg, liters per 100 km and km per liter in one step, with a handy mpg to L/100 km comparison chart. Web page: https://calcbright.com/fuel-economy-converter

• gpa_calculator

  Free GPA calculator: enter letter grades and credit hours for up to 8 courses to get your semester GPA on a 4.0 scale, plus your new cumulative GPA in seconds. Web page: https://calcbright.com/gpa-calculator

• grade_calculator

  Free final grade calculator: enter your current grade, the final exam weight and the grade you want to see exactly what score you need on the final exam. Web page: https://calcbright.com/grade-calculator

• gst_calculator

  Free GST calculator for India: add or remove GST at 5%, 12%, 18%, 28% or 40% and see the CGST, SGST or IGST split and invoice total in rupees instantly. Web page: https://calcbright.com/gst-calculator

• heart_rate_zone_calculator

  Free heart rate zone calculator: find your max heart rate and 5 training zones by age with 220 − age or Tanaka, plus the Karvonen method using resting HR. Web page: https://calcbright.com/heart-rate-zone-calculator

• height_converter

  Free height converter: change centimeters to feet and inches or feet and inches to cm instantly, with a handy height chart from 150 cm to 200 cm. Web page: https://calcbright.com/height-converter

• home_affordability_calculator

  Free home affordability calculator: see how much house you can afford from your income, debts and down payment using the 28/36 rule, with taxes and insurance. Web page: https://calcbright.com/home-affordability-calculator

• hours_calculator

  Free hours calculator and time card: enter start, end and break times for each day of the week to total work hours, decimal hours and pay at your hourly rate. Web page: https://calcbright.com/hours-calculator

• ideal_weight_calculator

  Free ideal weight calculator: find your ideal body weight for your height and sex using Robinson, Miller, Devine and Hamwi formulas plus a healthy BMI range. Web page: https://calcbright.com/ideal-weight-calculator

• inflation_calculator

  Free inflation calculator: see what an amount will cost in the future, what past money is worth today, and how much purchasing power inflation erodes each year. Web page: https://calcbright.com/inflation-calculator

• lcm_gcd_calculator

  Free LCM and GCD calculator: find the least common multiple and greatest common divisor (GCF or HCF) of up to 20 numbers, with prime factorizations and steps. Web page: https://calcbright.com/lcm-gcd-calculator

• logarithm_calculator

  Free logarithm calculator: find log base 10, natural log (ln), log base 2 or a log with any custom base, with the change-of-base formula worked step by step. Web page: https://calcbright.com/logarithm-calculator

• macro_calculator

  Free macro calculator: get your daily calories and grams of protein, carbs and fat for weight loss, maintenance or muscle gain, with three diet-style splits. Web page: https://calcbright.com/macro-calculator

• markup_calculator

  Free markup calculator: add a percentage markup to your cost to get the selling price, profit per unit and the gross margin it really gives you, at a glance. Web page: https://calcbright.com/markup-calculator

• number_base_converter

  Free number base converter: convert between binary, octal, decimal, hexadecimal and any base from 2 to 36, with very large numbers and step-by-step working. Web page: https://calcbright.com/number-base-converter

• number_to_words_converter

  Free number to words converter: spell out any number up to 999 trillion in English, in check-writing format, or in the Indian lakh and crore system instantly. Web page: https://calcbright.com/number-to-words-converter

• one_rep_max_calculator

  Free one rep max calculator: estimate your 1RM for bench press, squat or deadlift from any weight and reps using the Epley, Brzycki and Lombardi formulas. Web page: https://calcbright.com/one-rep-max-calculator

• overtime_calculator

  Free overtime calculator: enter your hourly rate, regular and overtime hours to see regular pay, time-and-a-half or double-time pay and total gross pay. Web page: https://calcbright.com/overtime-calculator

• ovulation_calculator

  Free ovulation calculator: estimate your ovulation day, fertile window and next period from your last period and cycle length, with dates for the next 4 cycles. Web page: https://calcbright.com/ovulation-calculator

• pace_calculator

  Free running pace calculator: get pace per km and per mile and speed from distance and time, or predict 5K, 10K, half marathon and marathon finish times. Web page: https://calcbright.com/pace-calculator

• paint_calculator

  Free paint calculator: enter your room size, doors, windows and coats to find the paintable wall area and how many gallons or liters to buy, rounded up. Web page: https://calcbright.com/paint-calculator

• password_generator

  Free strong password generator: create secure passwords of 8–64 characters with letters, numbers and symbols, plus entropy and strength. Made in your browser. Web page: https://calcbright.com/password-generator

• pay_raise_calculator

  Free pay raise calculator: enter your salary or hourly wage and a raise % or new pay to see the increase, % change and pay per month, week and hour. Web page: https://calcbright.com/pay-raise-calculator

• percent_error_calculator

  Free percent error calculator: compare an experimental (measured) value with the theoretical (true) value to get percent, absolute and relative error. Web page: https://calcbright.com/percent-error-calculator

• pregnancy_due_date_calculator

  Free pregnancy due date calculator: estimate your due date from your last period, conception or IVF transfer date and see how many weeks pregnant you are today. Web page: https://calcbright.com/pregnancy-due-date-calculator

• prime_number_checker

  Free prime number checker: test if any number up to one trillion is prime, see its smallest factor and prime factorization, and get the next and previous prime. Web page: https://calcbright.com/prime-number-checker

• profit_margin_calculator

  Free profit margin calculator: enter cost and revenue to get gross profit, margin percentage and markup, plus the selling price needed for any target margin. Web page: https://calcbright.com/profit-margin-calculator

• protein_calculator

  Free protein calculator: find how many grams of protein you need a day for your weight and activity level, from the 0.8 g/kg RDA to 2.2 g/kg for muscle gain. Web page: https://calcbright.com/protein-calculator

• pythagorean_theorem_calculator

  Free Pythagorean theorem calculator: find the hypotenuse or a missing leg of a right triangle from a² + b² = c², plus area, perimeter, angles and every step. Web page: https://calcbright.com/pythagorean-theorem-calculator

• quadratic_equation_solver

  Free quadratic equation solver: enter a, b and c to find the discriminant, real or complex roots and the vertex of ax² + bx + c = 0, with step-by-step working. Web page: https://calcbright.com/quadratic-equation-solver

• random_number_generator

  Free random number generator: pick one or many random numbers in any range, whole or decimal, with or without duplicates. Numbers are generated in your browser. Web page: https://calcbright.com/random-number-generator

• ratio_calculator

  Free ratio calculator: solve A:B = C:D for any missing value, simplify ratios to lowest terms, and see the cross-multiplication steps. Ideal for recipes. Web page: https://calcbright.com/ratio-calculator

• refinance_calculator

  Free refinance calculator: compare your mortgage with a new rate and term to see the new payment, monthly savings, break-even month and lifetime interest. Web page: https://calcbright.com/refinance-calculator

• rent_affordability_calculator

  Free rent affordability calculator: see how much rent you can afford from your salary using the 30% rule and the landlord 40x rule, adjusted for your debts. Web page: https://calcbright.com/rent-affordability-calculator

• retirement_calculator

  Free retirement calculator: project your nest egg at retirement from savings and monthly contributions, then see how long withdrawals will last, year by year. Web page: https://calcbright.com/retirement-calculator

• roi_calculator

  Free ROI calculator: work out your return on investment as a percentage, net profit or loss, and annualized ROI based on how long the money was invested. Web page: https://calcbright.com/roi-calculator

• roman_numeral_converter

  Free Roman numeral converter: change any number from 1 to 3999 into Roman numerals or read a numeral back as a number, with a step-by-step breakdown. Web page: https://calcbright.com/roman-numeral-converter

• sales_tax_calculator

  Free sales tax calculator: add sales tax to any price or work backwards from a tax-inclusive total to the pre-tax price, using any state or local rate. Web page: https://calcbright.com/sales-tax-calculator

• saudi_end_of_service_calculator

  Free Saudi end of service benefit calculator: work out your award under Articles 84–85 of the KSA Labour Law, including the reduced amounts when you resign. Web page: https://calcbright.com/saudi-end-of-service-calculator

• savings_goal_calculator

  Free savings goal calculator: find out how much to save each month to reach a target amount by a deadline, counting current savings and interest earned. Web page: https://calcbright.com/savings-goal-calculator

• shoe_size_converter

  Free shoe size converter: convert between US men's, US women's, UK, EU and Japanese cm sizes with a clear adult size chart, so online shoes fit the first time. Web page: https://calcbright.com/shoe-size-converter

• simple_interest_calculator

  Free simple interest calculator: work out the interest and total amount on any principal using I = P × r × t, with time entered in years, months or days. Web page: https://calcbright.com/simple-interest-calculator

• sip_calculator

  Free SIP calculator: estimate the maturity value of a monthly mutual fund SIP, the amount invested and returns earned, with a year-by-year growth chart. Web page: https://calcbright.com/sip-calculator

• sleep_calculator

  Free sleep calculator: find the best time to go to bed or wake up using 90-minute sleep cycles, so you wake between cycles feeling refreshed, not groggy. Web page: https://calcbright.com/sleep-calculator

• speed_distance_time_calculator

  Free speed, distance and time calculator: solve for any one from the other two in km, miles, km/h or mph, with the formula and step-by-step working shown. Web page: https://calcbright.com/speed-distance-time-calculator

• square_footage_calculator

  Free square footage calculator for rectangles, L-shaped rooms, circles and triangles. Get the area in sq ft, m², square yards and acres, plus the total cost. Web page: https://calcbright.com/square-footage-calculator

• square_root_calculator

  Free square root calculator: find the square root, cube root or any nth root of a number, simplify radicals like √72 = 6√2, and check the answer step by step. Web page: https://calcbright.com/square-root-calculator

• standard_deviation_calculator

  Free standard deviation calculator: enter a data set to get the sample or population standard deviation, variance and mean, with a full step-by-step table. Web page: https://calcbright.com/standard-deviation-calculator

• take_home_pay_calculator

  Free take-home pay calculator for the US, Canada, UK and Gulf: see your salary after income tax, Social Security, NI or CPP/EI – per year, month and paycheck. Web page: https://calcbright.com/take-home-pay-calculator

• time_duration_calculator

  Free time duration calculator: find the hours and minutes between two clock times, even across midnight, with the result in decimal hours and total minutes. Web page: https://calcbright.com/time-duration-calculator

• time_to_decimal_converter

  Free time to decimal converter: change hours, minutes and seconds into decimal hours for timesheets and payroll, or turn decimal hours back into h:mm:ss format. Web page: https://calcbright.com/time-to-decimal-converter

• tip_calculator

  Free tip calculator: work out the tip and total for any bill, split it between friends, and compare 10%, 15%, 18%, 20% and 25% tips instantly. Web page: https://calcbright.com/tip-calculator

• uae_gratuity_calculator

  Free UAE gratuity calculator under the new Labour Law: work out your end-of-service benefit from basic salary and service dates – 21 or 30 days per year. Web page: https://calcbright.com/uae-gratuity-calculator

• unix_timestamp_converter

  Free Unix timestamp converter: turn epoch seconds or milliseconds into a readable UTC date and ISO 8601 time, or convert any date and time to a Unix timestamp. Web page: https://calcbright.com/unix-timestamp-converter

• vat_calculator

  Free VAT calculator: add VAT to a net price or remove VAT from a gross amount at 20% or any rate, with UK, EU, UAE and Saudi standard rates compared. Web page: https://calcbright.com/vat-calculator

• volume_calculator

  Free volume calculator for cubes, boxes, cylinders, spheres, cones and pyramids. Enter dimensions to get the volume with its formula, plus litres and gallons. Web page: https://calcbright.com/volume-calculator

• water_intake_calculator

  Free water intake calculator: find how much water you should drink each day in litres, cups and ounces based on your body weight, daily exercise and climate. Web page: https://calcbright.com/water-intake-calculator

• week_number_calculator

  Free week number calculator: find the ISO 8601 week number of any date, the Monday and Sunday of that week, the day of the year and the days left in the year. Web page: https://calcbright.com/week-number-calculator

• word_counter

  Free word counter: count words, characters with and without spaces, sentences and paragraphs, plus reading time, speaking time and your top keywords. Web page: https://calcbright.com/word-counter

• zakat_calculator

  Free zakat calculator: add up cash, gold, silver, investments and business assets, deduct debts due and check the gold or silver nisab for the 2.5% zakat due. Web page: https://calcbright.com/zakat-calculator