USA Tools
USA Tools
US federal tax, paycheck, mortgage and everyday money calculators.
US Federal Income Tax Calculator
Calculate US federal income tax online for free using 2025 tax brackets. Enter your taxable income and filing status to see your tax, effective rate and bracket.
USAUS Paycheck Calculator
Calculate your US take-home pay online for free. Enter your salary, filing status and state tax rate to estimate your paycheck after federal tax and FICA.
USAUS Mortgage Calculator
Calculate your US mortgage payment online for free — principal, interest, taxes and insurance (PITI) from your home price, down payment, rate and term.
USA401(k) Retirement Calculator
Project your 401(k) balance at retirement online for free from your salary, contribution rate, employer match and expected returns.
USAUS Sales Tax Calculator
Calculate US sales tax online for free. Enter a price and your local sales tax rate to see the tax amount and total.
USAUS GPA Calculator
Calculate your GPA online for free on the standard US 4.0 scale from your course credit hours and letter grades.
USARoth vs Traditional IRA Calculator
Compare Roth vs Traditional IRA online for free — enter your tax brackets and contribution to see which leaves you more money after tax.
USAUS Student Loan Calculator
Calculate your US student loan payment online for free. Enter your loan amount, rate and term to see your fixed monthly payment and total interest.
USASAT Score Calculator
Calculate your total SAT score online for free from your Evidence-Based Reading & Writing and Math section scores.
USAACT Score Calculator
Calculate your ACT composite score online for free from your English, Math, Reading and Science section scores.
USAUS Tip Calculator
Calculate a restaurant tip online for free — enter the bill, tip percentage and number of people to split it between.