Free calculators for money, dates & everyday math
Mortgage payments, take-home pay, savings growth, percentages, ages and more. Fast, accurate and private: everything runs in your browser.
Money & finance
Mortgage CalculatorEstimate your monthly mortgage payment, including property tax, home insurance, PMI and HOA fees, and see the full amortization schedule and payoff date.
How Much House Can I Afford?Find the home price you can afford based on your income, debts, down payment and interest rate, using the 28/36 debt-to-income rules lenders use.
Take-Home Pay CalculatorEstimate your 2026 paycheck after federal income tax, Social Security and Medicare, by pay period and filing status, with pre-tax 401(k) deductions and a state tax rate.
Hourly to Salary CalculatorConvert an hourly wage to yearly, monthly, biweekly and weekly pay, with an estimate of take-home pay after federal taxes.
Salary to Hourly CalculatorConvert a yearly salary to an hourly wage, plus monthly, biweekly and weekly pay, with an estimate of take-home pay after federal taxes.
Loan CalculatorCalculate the monthly payment, total interest and amortization schedule for any personal loan, student loan or other fixed-rate loan.
Auto Loan CalculatorEstimate your monthly car payment including sales tax, fees, down payment and trade-in, and see the total interest over the loan.
Compound Interest CalculatorSee how savings and investments grow with compound interest and regular monthly contributions, with a year-by-year chart and table.
Retirement CalculatorEstimate your retirement savings, the income they could support with the 4% rule, and how much more you'd need to save each month to reach your goal.
Credit Card Payoff CalculatorFind out how long it will take to pay off a credit card balance and how much interest you'll pay, or what monthly payment clears it by a deadline.
Inflation CalculatorSee what today's money will be worth in the future, and how much prices will rise, at any inflation rate.
Everyday math
Percentage CalculatorWork out percentages instantly: X% of a number, what percent one number is of another, percentage increase or decrease, and finding the whole from a percentage.
Tip CalculatorCalculate the tip and total for any bill, split it between any number of people, and compare tips from 10% to 25%.
Discount CalculatorFind the sale price after a percentage discount, including stacked discounts and sales tax, and see exactly how much you save.
Dates & time
Age CalculatorCalculate your exact age in years, months and days from your date of birth, plus total weeks, days and your next birthday.
Days Between DatesCount the days between two dates, with weeks, months, years and business days (Monday to Friday).
Date Calculator (Add Days)Find the date a number of days, weeks or months from today or any date, or count back to a date in the past.
Days Until CountdownCount down the days, hours, minutes and seconds to any date: a birthday, holiday, vacation or deadline.
Time Card CalculatorAdd up your work hours for the week from start and end times, subtract breaks, and calculate regular and overtime pay.
Health & school
Quick answers
Percentage questionsQuick answers to common percentage questions, from 1% to 90% of numbers up to 10,000, each with step-by-step working.
Hourly wage to salarySee what every hourly wage from $8 to $100 works out to per year, month, two weeks and week, before and after tax.
Salary to hourlySee what every salary from $20,000 to $300,000 a year is per hour, month and paycheck, plus take-home pay after tax.
Mortgage payments by loan amountMonthly mortgage payments for every loan amount from $50,000 to $1 million at today's range of interest rates, for 15, 20 and 30-year terms.
Car loan payments by amountMonthly car payments for loan amounts from $5,000 to $100,000 at APRs from 4% to 12%, for 36 to 84-month terms.
Holiday countdownsLive countdowns to Christmas, Thanksgiving, Halloween, New Year and every major US holiday.
Age by birth yearFind how old someone born in any year from 1930 to 2025 is this year, with their generation and zodiac sign.
Days from todayFind the date 7, 30, 60, 90, 180 or 365 days from today or ago, updated for today's date.