Money math, made clear
Mortgage, loan, paycheck, savings and budget calculators with plain-English results, so you can plan with confidence.
⭐ Featured tools
🆕 New tools
📚 Guides
🏠 Loans & Mortgages
Mortgage Calculator
Calculate your estimated monthly mortgage payment from home price, down payment, interest rate and loan term. Free, instant amortization-based calculator.
House Affordability Calculator
Estimate the home price you can afford from your income, debts, down payment and mortgage rate, using the 28% / 36% lender guidelines.
Mortgage Payoff Calculator
See how extra monthly payments shorten your mortgage and how much interest you save. Enter balance, rate, years left and extra payment.
Down Payment Calculator
Calculate your down payment amount and the remaining loan balance from a home or vehicle price and a down payment percentage. Free, instant estimates.
Loan Payment Calculator
Calculate your estimated monthly loan payment and total interest from principal, interest rate and term length. Free, instant, works for any fixed-rate loan.
Auto Loan Calculator
Calculate your estimated monthly car loan payment from vehicle price, down payment, interest rate and loan term. Free, instant, and no signup is required.
Car Lease Calculator
Estimate a monthly car lease payment from the price, down payment, residual value, money factor, term and sales tax.
Credit Card Payoff Calculator
See how many months it takes to pay off a credit card balance with a fixed monthly payment, and how much interest you will pay in total.
Debt-to-Income (DTI) Calculator
Calculate your debt-to-income (DTI) ratio, a key number mortgage lenders check, from monthly debt payments and gross income. Free, instant DTI calculator.
Rent Affordability Calculator
Find out how much rent you can afford using the 30% rule, and the income landlords usually want to see under the 40x rent rule.
📈 Saving & Investing
Compound Interest Calculator
Calculate how your savings or investment grows over time with compound interest, including optional monthly contributions — free, instant compound calculator.
Savings Calculator
Calculate how much your savings will grow with regular monthly deposits and compound interest over time — free, instant savings growth projection calculator.
Savings Goal Calculator
Find out how much you need to save each month to reach a savings goal by a target date, including interest earned.
Emergency Fund Calculator
Work out your emergency fund target from monthly expenses, how far you are from it, and how many months it will take to get there.
Future Value Calculator
Project the future value of savings or investments with a starting amount, monthly contributions and an expected annual return.
Present Value Calculator
Find the present value of a future amount using a discount rate. Useful for comparing offers, settlements and investments.
APY Calculator
Convert an interest rate (APR) to APY to see the real yearly return on a savings account or CD once compounding is included.
Rule of 72 Calculator
Use the Rule of 72 to estimate how many years it takes to double an investment at a given return, compared with the exact answer.
Inflation Calculator
Estimate how inflation changes prices over time. See what something will cost in the future and how much buying power your money loses each year.
401(k) Calculator
Project your 401(k) balance at retirement, including your own contributions, employer match and investment returns. A free, instant 401(k) growth calculator.
IRS Required Minimum Distribution (RMD) Calculator
Calculate your Required Minimum Distribution (RMD) using the actual, current IRS Uniform Lifetime Table — not an approximated general-purpose formula.
Net Worth Calculator
Free net worth calculator. Add up what you own and what you owe to see your personal net worth and debt-to-asset ratio in seconds.
Zakat Calculator
Calculate your annual Zakat obligation using the standard 2.5% method on qualifying wealth above the nisab threshold — free, instant Zakat calculator.
🕐 Pay & Salary
Hourly to Salary Calculator
Convert an hourly wage into an estimated annual, monthly and weekly salary based on the hours you work each week. Free, instant wage conversion, no signup.
Salary to Hourly Calculator
Convert an annual salary into an equivalent hourly rate based on the hours you typically work each week. Free, instant salary-to-hourly conversion tool.
Overtime Pay Calculator
Calculate your total weekly pay including overtime, using the standard time-and-a-half rate for hours worked beyond 40 per week. Free, instant calculator.
Pay Raise Calculator
Calculate your new salary after a percentage raise, plus the extra money per year, month, paycheck and hour.
US Paycheck Calculator (Federal Take-Home Pay)
Estimate your US take-home pay after federal income tax and FICA, using the 2026 IRS tax brackets and standard deduction. Federal estimate only, no state tax.
UK Take-Home Pay Calculator
Estimate your UK take-home pay after Income Tax and National Insurance, using current PAYE bands. A free salary calculator for England, Wales and N. Ireland.
🗂️ Everyday Money
50/30/20 Budget Calculator
Split your take-home pay with the 50/30/20 rule: 50% needs, 30% wants and 20% savings and debt payoff. Free and instant.
Percentage Calculator
Calculate a percentage of a number, work out a percentage increase or decrease, or find what percent one number is of another. Free, instant, accurate.
Discount Calculator
Calculate the sale price after a percentage discount, and see exactly how much money you're saving on the purchase. Free, instant discount calculator.
Tip Calculator
Calculate the tip amount and total bill, and split it evenly between any number of people. Free, instant restaurant tip calculator — no signup needed.
Sales Tax Calculator
Free sales tax calculator. Enter a price and your state or local sales tax rate to see the tax amount and the total you will pay at checkout.
Simple Interest Calculator
Calculate simple interest on a loan or savings deposit. Enter principal, annual rate and time to get the interest earned or owed and the total amount.
Frequently Asked Questions
Do I need to sign up or log in?
No. Every calculator works instantly without an account. A free account is only needed if you want to save results (up to 30) and see them later.
Is my data stored anywhere?
The numbers and dates you type are calculated in your browser and are not sent to us. We keep basic visit statistics (page visited, IP address, browser, time) and, if you save a result, that saved result in your account. The AI Assistant sends your question to an AI provider to answer it.
Are the results exact?
Date and age maths is exact. Money, tax and health tools are estimates based on published formulas and official tables, and are not professional advice.