Free Calculators

Advanced browser calculator supporting standard math, trigonometric functions, logarithms, powers, and history.

Calculate monthly payments, total interest paid, and yearly amortization schedule for mortgages and personal loans.

Multi-function percentage utility for percent differences, retail discounts, sales tax, and restaurant bill splitting.

Real-time two-way conversion across metric and imperial units of length, weight, temperature, digital data, area, and speed.

Enter a date of birth to get exact age in years, months, and days. Also shows total days, hours, minutes, next birthday countdown, day of birth, and zodiac sign.

Calculate Body Mass Index in metric or imperial units. Displays a visual gauge, your health category (underweight to obese), and your ideal weight range.

Enter a bill amount, choose a tip percentage, and split among any number of people. Shows tip amount, total, per-person share, and optional rounding.

Forecast the exponential growth of your investments and savings. Supports periodic deposits, annual return rates, variable compounding intervals, and a complete year-by-year amortization breakdown.

Find out exactly how much you pay and save on sales. Supports percentage and fixed discounts, double-stacked extra coupons, sales tax rates, and multi-quantity cart totals.

Calculate the exact number of days, weeks, months, and business days between any two dates. Or add and subtract years, months, and days from any starting date.