Percentage Calculator

Solve every common percentage question in one place.

100% Free No sign-up Private

What is % of ?

100

is what percent of ?

25%

Change from to

+25% increase

plus / minus %

1,380 / 1,020

is % of what?

300

Discount example: a 25% discount on 2,000 means 2,000 minus 25% = 1,500. Use the plus / minus row for quick discounts and markups.

How to Use the Percentage Calculator?

Solve every everyday percentage question, from discounts to percentage change, in one place.

1
Find the row that matches your question, such as What is X% of Y?
2
Type your numbers into the boxes in that row.
3
Read the answer on the right. It updates as you type.
4
Use the Change from row to work out increases and decreases.

Benefits of Using Our Percentage Calculator

Five calculators in one

Percent of a number, what percent, percentage change, add or subtract a percent, and reverse percentages.

Instant answers

No buttons to press. Results update as you type.

Great for shopping

Work out discounts, tips and price rises in seconds.

Free and simple

Clear rows that read like plain English questions.

Who Can Use This Percentage Calculator?

Students

Check maths homework and exam answers.

Shoppers

Calculate sale prices and discounts.

Business owners

Work out margins, markups and growth.

Employees

Calculate salary hikes and increments.

Frequently Asked Questions

Everything you need to know about the Percentage Calculator.

How do I calculate a percentage of a number?

Multiply the number by the percentage and divide by 100. For example, 20% of 500 is 500 times 20 divided by 100, which equals 100.

How do I calculate percentage increase?

Subtract the old value from the new value, divide by the old value and multiply by 100. For example, going from 800 to 1,000 is an increase of 200, which is 25% of 800.

How do I calculate a discount?

Use the plus or minus row. Enter the original price and the discount percentage, and the second result shows the price after the discount. For example, 25% off 2,000 is 1,500.