Every percent question, answered.
Stop guessing at percentages. Whether you're working out a discount, a tip, sales tax, or a contribution margin, just fill in the blanks — or ask the built-in Assistant in plain English — and get an answer you can actually read.
No remembering formulas. Each calculator reads like a sentence — "What percentage is X of Y?" — so you always know what you're solving for.
Use the same calculation all the time? Star it and jump straight to what you need, every time you open the app.
Prices, taxes, and tips show your local currency symbol where it matters, and percentages where it doesn't. No mental gymnastics.
Ask in plain English — "what's 25% off $199?" — and get a clear, tappable answer card. Runs entirely on your device with Apple Intelligence (iOS 26+, Pro).
Shopping abroad? Calculate in the local currency and see your home currency alongside every total, with live daily exchange rates (Pro).
Available in 16 languages — from English and German to Japanese and Vietnamese — with the right number formatting for each.
Download 100 Percent Calculator and get the right answer the first time.