Money math,
solved in seconds.

Work out the monthly payment, total interest, and full amortization schedule for any personal, auto, or business loan.

Estimate your monthly mortgage payment including principal and interest, and see how much a home really costs over the life of the loan.

Work out the real monthly payment on a car: price, down payment, trade-in, sales tax, and interest all in one place.

Compare your current loan with a new one to see the monthly saving, the closing costs, and how many months it takes to break even.

See how savings and investments grow over time with compound interest and regular monthly contributions.

Find out how much you need to save each month to reach a target amount by a certain date.

Project your retirement nest egg based on your current savings, monthly contributions, and expected return.

Calculate the total return and annualized return (CAGR) of any investment from its starting and ending value.

See what today's money will be worth in the future — how inflation raises prices and erodes purchasing power over time.

Calculate simple interest on a loan or deposit, and see exactly how it differs from compound interest over the same period.

Add up everything you own and everything you owe to get your net worth — the single number that tracks real financial progress.

Find out how long it will take to pay off your credit card balance, how much interest you'll pay, and how extra payments speed things up.

Plan your debt-free date: list your debts and see the payoff order, months to freedom, and total interest with the snowball or avalanche method.

Work out the DTI ratio lenders use to decide if you qualify for a mortgage or loan — and see which band you fall into.

Estimate income tax using progressive tax brackets, with your effective and marginal rates and take-home pay.

Convert your salary between hourly, weekly, monthly, and annual amounts — and estimate your take-home pay after tax.

Add or remove VAT (or sales tax) from any amount at any rate — see the net price, tax amount, and gross price instantly.

Add sales tax to a basket of items or work backwards from a tax-inclusive total to the pre-tax price.

Calculate gross pay from regular and overtime hours at any overtime multiplier, including double-time.

Quickly calculate percentages: what is X% of Y, what percent one number is of another, and percentage increase or decrease.

Calculate your Body Mass Index from your height and weight, in metric or imperial units, and see which range it falls into.

Work out your grade point average on the 4.0 scale from your course grades and credit hours.

Generate one or many random numbers in any range — with an option to avoid repeats, perfect for draws and picks.

Work out the tip on any bill and split the total evenly between people — with rounding options for cash payments.

Find the sale price and how much you save from any percentage off — including stacked discounts and tax.

Estimate the calories you burn each day from your age, height, weight, and activity level — plus targets for losing or gaining weight.

Work out what a trip costs in fuel from the distance, your vehicle's efficiency, and the price at the pump — in metric or imperial.

Convert length, weight, volume, area, speed, and temperature between metric and imperial units.

Convert between milliseconds, seconds, minutes, hours, days, weeks, months, and years.

Find your exact age in years, months, and days from your date of birth — plus a countdown to your next birthday.

Count the days, weeks, months, and years between two dates — including working days.

Add or subtract days, weeks, months, and years from any date — with an option to count only working days.

Estimate your due date from your last period or conception date, and see how many weeks along you are today.