How Does This Calculator Work?
To find a percentage of a number, divide the percent by 100 to get a decimal, then multiply by the value. For example, 20% of 50 is (20 ÷ 100) × 50 = 10.
Whether you're calculating a tip, a tax, or a discount, finding a percentage of a number is one of the most common everyday math tasks. This calculator gives you an instant, exact answer.
Example Calculation
Tip Example
A $50 bill with a 20% tip.
50 × (20 ÷ 100) = $10 tip.