100 Percent Calculator
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 and get the answer in plain language.
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 and get the answer in plain language.
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.
Available in English, German, Norwegian, and Dutch — with the right number formatting for each.
Download 100 Percent Calculator and get the right answer the first time.