Percentage Calculator
Find a percent of a number, or what percent one number is of another.
Percentage Calculator
%
Live result
Result
20% of 250
50
Number minus %
200
Number plus %
300
What it is
Percentages translate 'parts per hundred'. Use this calculator for tips, discounts, tax, and anything else expressed as a percent.
The formula
Part = (Percent ÷ 100) × Whole
Why it matters
Understanding percentage calculator helps you make a better-informed decision before you commit money or time.
Worked examples
Try the example
Use the defaults above as a starting point — then adjust the inputs to match your situation.
Common pitfalls
- Double-check the units on every input — most errors come from mixing units.
- Round at the end, not in the middle of the formula.
Frequently asked questions
Related calculators
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