Percentage calculator
Calculate percentages in three modes: what is X% of Y, what percentage is X of Y, and find the total from a part and percentage.
- Free, no sign-up
- No data stored
- Reviewed 2026-01-15
Your details
Results
Answer
120
:percent% of :total is :result
- Result
- 120
- Remainder
- 360
Remainder: :value
:from :unit = :to :target_unit
| Percent | Value |
|---|---|
| 1 % | 4.8 |
| 5 % | 24 |
| 10 % | 48 |
| 15 % | 72 |
| 20 % | 96 |
| 25 % | 120 |
| 33.333 % | 159.9984 |
| 50 % | 240 |
| 66.667 % | 320.0016 |
| 75 % | 360 |
| 100 % | 480 |
About the Percentage Calculator
Solve the three most common percentage questions instantly: "What is X% of Y?", "X is what % of Y?", and "If X is N%, what is the total?" Choose a mode and enter two values — the third is calculated.
How to use the Percentage Calculator
- Select the calculation mode.
- Enter the two known values.
- View the result with step-by-step explanation.
Frequently asked questions
What does "X% of Y" mean?
It means X/100 multiplied by Y. For example, 15% of 200 = 0.15 × 200 = 30.
How do I find what percentage one number is of another?
Divide the part by the whole and multiply by 100. For example, 30 is what % of 200? → 30/200 × 100 = 15%.
Can I calculate a percentage increase?
Use the Percentage Change calculator for increases and decreases between two values.