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Quick answers to
everyday money math
CalcOrchard is a growing collection of fast, accurate, beautifully simple calculators. Plug in your numbers, get a clear answer — and actually understand it.
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Handpicked tools to make a tricky decision simple.
Compound Interest Calculator See how your savings or investments grow over time with compound interest. Add regular contributions and visualise year-by-year growth. Loan & Mortgage Payment Calculator Work out the monthly payment on any loan or mortgage, see the total interest you'll pay, and explore how extra payments help you finish sooner. Savings Goal Calculator Find out how much to save each month to reach a money goal — or how long it will take if you already know your monthly amount. Mortgage Affordability Calculator Estimate the maximum home price and mortgage you can afford based on your income, debts, and down payment. Uses the standard 28/36 qualifying ratios. Percentage Calculator Quickly work out a percentage of a number, what percent one number is of another, and the percentage increase or decrease between two values. Tip Calculator Calculate how much to tip on any restaurant bill. Choose your tip percentage, split it between any number of people, and see exactly what each person pays. ROI Calculator Calculate the return on investment for any project, stock, or business venture. Get simple ROI, annualized ROI, and see whether a gain or loss is worth it. BMI Calculator Calculate your Body Mass Index in metric or imperial units. See your BMI category and where you fall on the standard weight classification scale. Age Calculator Find your exact age in years, months, and days from any birth date. See your next birthday countdown and discover what day of the week you were born. Unit Converter Convert between units of length, weight, temperature, volume, area, and speed instantly. Metric and imperial units — just type a value and get the answer. Currency Converter Convert between 160+ world currencies using live exchange rates. Fast, free, and updated automatically.
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Instant & accurate
Everything runs in your browser, so results update the moment you type. No waiting, no page reloads.
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Private by design
Your numbers never leave your device. There are no accounts, and we don't store what you calculate.
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Made to be understood
Each tool explains the formula and what the result means, so you learn while you calculate.