Free United States calculators

Free, accurate calculators for the US — taxes, paychecks, loans & more. Accurate, private and free — every calculation runs in your browser. 2026 tax year (returns filed in 2027) figures.

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Money & Tax

Paycheck Take-Home Calculator

See your real take-home pay after federal income tax and FICA — by week, paycheck, month or year. Free US calculator.

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Money & Tax

Sales Tax Calculator

Add or remove US sales tax from any price. Enter your local combined rate to get the total or the pre-tax amount.

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Home & Loans

Mortgage Payment Calculator

Estimate your monthly mortgage payment (principal & interest), total interest and total cost from the loan amount, rate and term.

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Home & Loans

Auto Loan Calculator

Calculate your monthly car payment from price, down payment, trade-in, APR and term — plus total interest.

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Home & Loans

Mortgage Payoff Calculator

See how much sooner you’ll pay off your mortgage — and how much interest you’ll save — by adding an extra amount to your monthly payment.

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Savings & Investing

Compound Interest Calculator

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

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Everyday

Tip Calculator

Calculate the tip and split the bill between any number of people. US tipping made easy.

Everyday

Percentage Calculator

Calculate X% of any number instantly, plus the value increased and decreased by that percent.

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Health

BMI Calculator

Calculate your Body Mass Index in imperial (feet/inches, pounds) or metric units, with the healthy range.

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Savings & Investing

401(k) Retirement Calculator

Project your 401(k) balance at retirement from your contribution rate, employer match, expected return and years.

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Money & Tax

Self-Employment Tax Calculator

Estimate the 15.3% self-employment tax (Social Security + Medicare) on your net freelance or 1099 income, plus the deductible half.

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Money & Tax

Hourly to Salary Calculator

Convert an hourly wage into weekly, monthly and annual salary. See what your hourly rate is worth per year.

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Home & Loans

Mortgage Refinance Calculator

See if refinancing saves money: compare your current and new monthly payment and find the break-even point after closing costs.

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Home & Loans

Student Loan Payoff Calculator

Calculate your monthly student loan payment, total interest and payoff date — and see how much an extra payment each month would save you.

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Home & Loans

Credit Card Payoff Calculator

See how long it takes to pay off a credit card balance and the total interest — from your APR and monthly payment.

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Home & Loans

Home Affordability Calculator

Find out how much house you can afford from your income, debts and down payment, using the 28/36 lender rule.

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Home & Loans

Loan Calculator

Calculate the monthly payment, total interest and payoff time on any fixed-rate loan — and see how much an extra monthly payment saves.

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Money & Tax

Capital Gains Tax Calculator

Estimate the federal tax on your stock, crypto or property gains — long-term (0%/15%/20%) or short-term — for the 2026 tax year.

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Savings & Investing

Roth IRA Calculator

Project your tax-free Roth IRA balance at retirement from your age, contributions and expected return — with the 2026 $7,500 / $8,600 limits applied.

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Savings & Investing

Retirement Calculator

See if you’re on track to retire: project your nest egg, find how much you need with the 4% rule, and estimate how long your savings will last.

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Home & Loans

Debt-to-Income (DTI) Ratio Calculator

Calculate your front-end and back-end debt-to-income ratio and see whether you meet the 28/36 and 43% limits lenders use to approve a mortgage or loan.

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Savings & Investing

Savings Goal Calculator

Find out how much to save each month to reach a savings goal by a target date — factoring in your starting balance and expected investment return.

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Savings & Investing

Required Minimum Distribution (RMD) Calculator

Calculate your 2026 required minimum distribution from a traditional IRA or 401(k) using the IRS Uniform Lifetime Table. Avoid the 25% penalty.

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Home & Loans

Home Equity Loan Calculator

See how much you can borrow against your home’s equity — with the monthly payment, total interest and your combined loan-to-value.

Calculators built for the United States

Every tool here uses United States rules and US dollars — federal tax brackets, FICA, US sales tax and imperial units. Figures reflect the 2026 tax year (returns filed in 2027) and are sourced from IRS.gov. Nothing you type is sent anywhere — the maths happens on your device.

Curious what a specific salary is worth after tax? See our US take-home pay by salary table — annual, monthly and effective tax rate from $30k to $200k. Paid hourly? Find out what an hourly wage is per year ($15–$50 an hour). Buying a home? See the monthly payment on a mortgage by amount ($150k–$1M, payment by rate).

Looking for a different country? Switch between our 🇺🇸 United States and 🇬🇧 United Kingdom editions any time.

Straight answers to the questions people ask most — every one is a full page with the figures already worked out for 2026 tax year (returns filed in 2027).

Salary after tax

What a given salary is actually worth once federal income tax and FICA (no state income tax) come out — annual, monthly and effective rate.

Hourly pay to yearly

An hourly rate converted to a yearly salary at 40 hours a week, before and after tax.

Mortgage payment by amount

The monthly payment on a 30-year loan, broken down by interest rate.

Guides

Longer reads that explain the rules behind the numbers.