Smart Calculators for Smarter Decisions

Free, accurate online calculators built for everyday American needs. No sign-up. No ads bloating the page. Just answers.

Popular Calculators

Calculate the right tip for any bill, split among friends.

Estimate your take-home pay after federal and state taxes.

Quickly find percentages, discounts, and percent change.

Calculate your GPA from letter grades or percentages.

Find out what grade you need to pass or hit your target.

Estimate monthly payments and total interest on any loan.

Count words, characters, sentences, and reading time.

Calculate your Body Mass Index using US standard units.

Trusted by Americans for quick, accurate calculations \u2014 from splitting the dinner bill to planning your next loan.