All Calculators
Calculator
Fast, free arithmetic — add, subtract, multiply, divide. Keyboard supported.
Open tool →BMI Calculator
Calculate your Body Mass Index from height and weight. Supports metric and imperial units.
Open tool →Age Calculator
Find your exact age in years, months, and days, plus days until your next birthday.
Open tool →Compound Interest Calculator
Calculate investment growth, total interest earned, and final balance over time.
Open tool →Days Between Dates
Count exact days, weeks, and months between any two dates — past or future.
Open tool →GPA Calculator
Add courses, letter grades, and credit hours to calculate your GPA on a 4.0 scale.
Open tool →Loan Calculator
See your monthly payment, total payment, and total interest for any loan.
Open tool →Percentage Calculator
Find percentages, percentage of a number, and percentage change between two values.
Open tool →Salary Calculator
Convert hourly to annual salary or estimate take-home pay after taxes, any pay period.
Open tool →Tip Calculator
Calculate tip amount, total bill, and per-person split for any group size.
Open tool →Mortgage Calculator
Calculate monthly payment, total interest, and full amortization schedule for any home loan.
Open tool →Retirement Calculator
Project your retirement savings with compound growth, inflation adjustment, and year-by-year chart.
Open tool →Debt Payoff Calculator
See how long to pay off debt or what monthly payment hits your target date. Full schedule included.
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