Calk USA

700+ US calculators - federal & 50-state income tax, paycheck, mortgage, retirement and more. Based on current IRS rates for 2026. Works fully offline.

Calk-USA is a collection of 700+ calculators built for Americans. Every result is based on current IRS rates and federal and state rules for the 2026 tax year. No sign-up, no ads, no tracking - and it all works offline.

WHAT'S INSIDE

Taxes

• Federal income tax across all 2026 brackets, plus all 50 states
• Self-employment, capital gains, AMT, and estimated quarterly taxes
• Standard deduction, child tax credit, EITC, and the 2026 SALT cap

Paycheck and family

• Hourly and salary take-home pay by state (federal, state, Social Security, Medicare)
• Overtime, bonus, and W-4 withholding
• Child and dependent care credit and 529 college savings

Home and money

• Mortgage payment, affordability, refinance, and amortization
• Personal loan, auto loan, and debt payoff
• Compound interest, 401(k), IRA, Social Security, and net worth

Everyday

• Tip, sales tax, fuel cost, and EV savings
• BMI, calorie, body fat, and due date
• Building, math, and unit converters

FEATURES

• Works offline. Every calculation runs on your device.
• Based on current IRS, SSA, and state government rates for 2026.
• Available in English and Spanish.
• No ads, no account, and no personal-data collection.

WHO IT'S FOR

Employees, freelancers and small-business owners, homebuyers, families, students, and anyone who pays taxes in the United States.

Website: https://calk-usa.com Support: https://calk-usa.com/contact/ Privacy: https://calk-usa.com/privacy/