Percentage Calculator
A suite of free tools to help you with all your percentage calculation needs, from simple percentages to percentage change and difference.
Standard Percentage Calculator
Provide any two values below and click "Calculate" to get the third value.
Percentage in Common Phrases
Solve common percentage problems framed as everyday questions.
Percentage Difference
Find the percentage difference between two numbers.
Percentage Change
Calculate the percentage increase or decrease from a start value to an end value.
How to Use the Percentage Calculators
This page contains four distinct calculators. Here’s how each one works.
1. Standard Percentage Calculator
This solves the equation "[P]% of [X] = [Y]". Fill in any two of the three fields to calculate the missing value. For example, to find 25% of 200, enter '25' in the first box, '200' in the second, leave the third blank, and click 'Calculate'.
2. Percentage in Common Phrases
This tool lets you solve common percentage problems framed as everyday questions. Simply fill in the blanks for questions like "What is X% of Y?" or "X is what % of Y?" and click the question mark button to get the answer.
3. Percentage Difference Calculator
Use this to find the percentage difference between two numbers. This calculation treats both numbers equally, so the order you enter them in doesn't matter. It's useful for comparing two data points without implying one is an 'original' value.
4. Percentage Change Calculator
Use this to calculate the percentage increase or decrease from a starting value to an ending value. Enter the "From" (original) value and the "To" (new) value to see the change. The result will indicate whether it was an increase or a decrease.