Free, accurate calculators for the US โ taxes, paychecks, loans & more. Accurate, private and free โ every calculation runs in your browser. 2025 tax year (returns filed in 2026) figures.
See your real take-home pay after federal income tax and FICA โ by week, paycheck, month or year. Free US calculator.
Add or remove US sales tax from any price. Enter your local combined rate to get the total or the pre-tax amount.
Estimate your monthly mortgage payment (principal & interest), total interest and total cost from the loan amount, rate and term.
Calculate your monthly car payment from price, down payment, trade-in, APR and term โ plus total interest.
See how savings or investments grow over time with compound interest and regular monthly contributions.
Calculate the tip and split the bill between any number of people. US tipping made easy.
Calculate X% of any number instantly, plus the value increased and decreased by that percent.
Calculate your Body Mass Index in imperial (feet/inches, pounds) or metric units, with the healthy range.
Project your 401(k) balance at retirement from your contribution rate, employer match, expected return and years.
Estimate the 15.3% self-employment tax (Social Security + Medicare) on your net freelance or 1099 income, plus the deductible half.
Convert an hourly wage into weekly, monthly and annual salary. See what your hourly rate is worth per year.
See if refinancing saves money: compare your current and new monthly payment and find the break-even point after closing costs.
See how long it takes to pay off a credit card balance and the total interest โ from your APR and monthly payment.
Find out how much house you can afford from your income, debts and down payment, using the 28/36 lender rule.
Every tool here uses United States rules and US dollars โ federal tax brackets, FICA, US sales tax and imperial units. Figures reflect the 2025 tax year (returns filed in 2026) and are sourced from IRS.gov. Nothing you type is sent anywhere โ the maths happens on your device.
Looking for a different country? Switch between our ๐บ๐ธ United States and ๐ฌ๐ง United Kingdom editions any time.