Free Percentage Calculator
Use this free percentage calculator to find percent of a number, what percent one number is of another, and percentage increase or decrease.
Percentage Calculator
Use it for discounts, grades, tips, budget changes, shopping comparisons, and other everyday percentage questions.
Percentage Calculator for Everyday Math
A percentage calculator helps with quick everyday math: sale discounts, price changes, test scores, tips, budget increases, savings goals, and comparison shopping. Use the tabs above to calculate percent of a number, find what percent one value is of another, or measure percentage increase and decrease.
For planning tasks, pair this calculator with printable household and budget templates so you can do the math online and keep the final plan on paper.
Percentage Calculator FAQs
How do I calculate a percentage of a number?
Enter the percent and the number in the percent-of calculator. For example, 15 percent of 80 is calculated as 0.15 times 80, which equals 12.
How do I calculate percentage increase or decrease?
Enter the starting value and ending value in the percentage change tab. The calculator shows whether the result is an increase or decrease and gives the percent change.
Can I use this as a discount percentage calculator?
Yes. Use the percentage calculator for quick discount math, or use the dedicated discount calculator when you also want coupon savings, final price, and estimated sales tax.
What is the percentage formula?
To find a percent of a number, multiply the number by the percent divided by 100. To find what percent one number is of another, divide the part by the whole and multiply by 100.
Can I calculate percent change?
Yes. Enter the starting value and ending value to calculate percentage increase or percentage decrease between the two numbers.