Percentage Calculator
Calculate percentages instantly with four different modes. All calculations update in real time as you type.
What is X% of Y?
Enter a percentage and a number to find the result.
%
Common Percentage Reference
| Percentage | Fraction | Decimal | Visual |
|---|---|---|---|
| 5% | 1/20 | 0.05 | |
| 10% | 1/10 | 0.10 | |
| 12.5% | 1/8 | 0.125 | |
| 20% | 1/5 | 0.20 | |
| 25% | 1/4 | 0.25 | |
| 33.3% | 1/3 | 0.333 | |
| 50% | 1/2 | 0.50 | |
| 66.7% | 2/3 | 0.667 | |
| 75% | 3/4 | 0.75 | |
| 100% | 1/1 | 1.00 |
How It Works
1
Choose a Mode
Select one of four calculation modes: percentage of a number, what percent one number is of another, percentage change, or percentage increase/decrease.
2
Enter Your Numbers
Type your values into the input fields. Results calculate instantly in real time as you type -- no need to press a button.
3
Read Your Results
View the answer with a formula breakdown and visual percentage bar. Use the reference table below for quick percentage-to-fraction conversions.