Percentage Calculator
Find percentages, percentage increase, and percentage decrease in seconds.
Open toolFast, free, and easy to use
Online calculators for everyday use
Use simple tools for percentages, increases, decreases, and everyday maths. Designed to work quickly on mobile, tablet, and desktop for users anywhere in the world.
Quick percentage calculator
Enter values to see the result.
Featured tools
Percentage Increase
See how much a value has grown from one number to another.
Open sectionPercentage Decrease
Work out the percentage drop between two numbers quickly.
Open sectionWhy this site is useful
Many people search for quick maths tools every day for shopping, school, budgeting, discounts, business, and general problem solving. This site is built to give clear answers without clutter, without downloads, and without complicated steps.
The goal is simple: make everyday calculations faster and easier for a global audience.
Common percentage examples
What is 20% of 150?
20% of 150 is 30.
How do you calculate percentage increase?
Subtract the original value from the new value, divide by the original value, then multiply by 100.
How do you calculate percentage decrease?
Subtract the new value from the original value, divide by the original value, then multiply by 100.
Frequently asked questions
Is this calculator free?
Yes. All tools on this site are free to use.
Does it work on mobile?
Yes. The calculator is designed to work smoothly on phones, tablets, and desktop devices.
Can I use it anywhere?
Yes. The site is made for a broad international audience and uses simple, clear input fields.