Percentage Calculator
Compute any of the three classic percentage problems (X % of Y, X is what % of Y, etc).
About the Percentage Calculator
Percentage Calculator solves all three standard percentage problems: what is X% of Y, X is what % of Y, and X is Y% of what. A quick helper for shopping discounts, exam scores and business metrics.
How to use
- Pick the calculation type from the three options.
- Fill in the two known numbers.
- Press Calculate to see the answer with worked steps.
Benefits & key features
- Three calculation modes cover 99% of day-to-day percentage questions.
- Steps are shown so it's great for learning, not just answers.
- Handles negative numbers and decimals.
- Pairs with the Percentage Increase/Decrease Calculator for richer comparisons.
Pro tip
For tip calculations, use X % of Y with X = 15 or 20 and Y = your bill total. The result is the tip.