Smart Calculators for Smarter Decisions

Free, accurate online calculators for everyday American needs. No sign-up. Just answers.

Popular Calculators

Calculate the right tip for any bill.

Estimate your take-home pay after taxes.

Quickly find percentages and discounts.

Calculate your GPA from letter grades.

Find what grade you need to pass.

Estimate monthly payments on any loan.

Count words, characters, and reading time.

Calculate your Body Mass Index.

See how your savings grow over time.

Find your exact age in years, months, days.

Calculate monthly payments and amortization.

Find your daily calorie needs (TDEE).