Percentage Calculator
1. Find the Percentage
What is
% of
2. Find the Rate
is what % of
How to Use This Percentage Calculator
Whether you are calculating a store discount, figuring out a restaurant tip, or solving math homework, our free Percentage Calculator makes finding the right numbers instant and completely error-free.
1. Find the Percentage (What is X% of Y?)
Use this first tool when you know the total amount and the percentage you want to extract.
- Example: You want to leave a 20% tip on a $150 dinner bill.
- How to use: Type 20 in the first box and 150 in the second box. Click calculate to see that the tip is $30.
2. Find the Rate (X is what % of Y?)
Use the second tool when you have two numbers and need to know the ratio between them expressed as a percentage.
- Example: You scored 30 points out of a possible 100 points on a test.
- How to use: Type 30 in the first box and 100 in the second box. Click calculate to see that you got a 30%.
The Manual Math Formula: If you ever need to calculate a percentage by hand, divide the specific value by the total value, and then multiply the result by 100.
Formula: (Value / Total Value) × 100 = Percentage
Formula: (Value / Total Value) × 100 = Percentage