Percentage Calculator
Calculate percentages, percent change, percent of, and what percent something is. Fast, ad-free.
Calculate percentages four ways: X percent of Y, X is what percent of Y, percent change from X to Y, and X plus or minus Y percent. Single-mode focused UI with a single big output number and a sentence explaining the result.
When to use it
- 1Tipping, taxes, discounts, growth rates, anything percentage.
- 2Quickly checking a calculation in a spreadsheet or document.
- 3Teaching the four common percent operations to someone.
How it works
- 1
Pick a mode
Four tabs - one per operation. Each has its own clean form.
- 2
Type two numbers
The result and a plain-English explanation appear immediately.
- 3
Read the answer
Big readable number with the math written underneath in case you need to show it.
Frequently asked
Why four separate modes?
People use 'percent' to mean different operations. Forcing the choice up front avoids ambiguous answers.
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