Calculators

Percentage Calculator

Solve four common percentage questions with instant, easy-to-copy results.

Choose a calculation

Enter any valid numbers. Negative values and decimals are supported.

Everyday percentages

Quick answers without rearranging formulas

Find discounts, tips, taxes, grades, growth rates, price changes, and proportions. Each calculator shows the formula used so you can understand and verify the result.

How results work

Precise answers, readable formatting

Calculations use the values you enter without premature rounding. Displayed answers include up to ten decimal places and use scientific notation only for extremely large or small results.

Examples

Common percentage questions

20% discount on $7520% of 75 is 15, so the discounted price is $60.

Growth from 120 to 150The increase is 30, which is a 25% increase from 120.

18 correct answers out of 2418 is 75% of 24.

How to use it

Get a reliable result

Choose the percentage question that matches your problem.
Enter the known values in the labeled fields.
Read the calculated result and supporting formula.

Useful for

Common workflows

Calculate discounts and markups
Measure growth between two values
Find a percentage share of a total

Examples

What to expect

Discount amount

Input: 20% of 75
Output: 15

The price after that discount would be 60.

Know before you start

Important limitations

Percent change from an original value of zero is undefined.
Displayed decimals are rounded and should not replace full-precision financial records.
Results are arithmetic aids, not tax, accounting, or investment advice.

Common questions