🇺🇸

Free US Tax & Finance Calculators

19 free US calculators for paycheck tax, capital gains, 401(k), self-employment tax, sales tax, retirement and more. No sign-up required.

From figuring out your federal and state take-home pay to planning your 401(k) and calculating capital gains tax, these free tools cover the most important US financial calculations. All calculators run in your browser — no account needed.

US Paycheck Calculator — federal + state tax breakdown for every pay period
US Capital Gains Tax — calculate short-term and long-term CGT on investments
US 401(k) Calculator — project your retirement savings with employer match
US Self-Employment Tax — calculate SE tax and the deductions that offset it
Sales Tax Calculator — quickly add or remove sales tax for any US state
Retirement / FIRE Calculator — find out how soon you can retire

Free US Tools (19 total)

US Paycheck Calculator

Calculate your US take-home pay after federal and state taxes.

US Capital Gains Tax Calculator

Calculate your US federal capital gains tax liability.

US Self-Employment Tax Calculator

Calculate your US self-employment tax and deductions.

401(k) Calculator 2026

Project your 401(k) retirement savings with employer match and contributions.

Sales Tax Calculator

Calculate US sales tax — add or remove tax from any price.

Tip & Bill Splitter

Calculate the perfect tip and split it fairly between your group.

Hourly ↔ Salary Calculator

Convert between hourly rates and annual salaries instantly.

Overtime Pay Calculator

Calculate your overtime pay based on your hourly rate.

Retirement / FIRE Calculator

Calculate when you can retire and how much you need to save.

Compound Interest Calculator

See how compound interest grows your savings or investments over time.

Credit Card Payoff Calculator

Find out how long to pay off your credit card and how much interest you'll pay.

Debt Payoff Calculator

Use the snowball or avalanche method to pay off all your debts fast.

Savings Goal Calculator

Calculate how long to reach your savings goal or what monthly amount you need.

50/30/20 Budget Planner

Plan your budget using the 50/30/20 rule.

Investment Growth Calculator

Project how your investments will grow over time.

Mortgage Affordability

Calculate your mortgage repayments and total interest.

Rent vs Buy Calculator

Should you rent or buy? Compare the true long-term cost of each.

Emergency Fund Calculator

Calculate how large your emergency fund should be.

Calculate your GPA from your grades and credit hours.

Looking for a tool not listed here?

Browse All 113 Free Tools →