Percentage Calculator

Calculate Percentage

Calculate Part

Calculate Whole

Narendra Kumar
Created by
Narendra Kumar
 Reema Singh
Verified by
Reema Singh
Last Updated: 15-02-2026

Percentage Calculator

A Percentage Calculator is an online tool that performs percentage-related calculations automatically. It allows users to calculate percentages, parts, and whole values using predefined formulas. This makes it super easy to use.

What is a Percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is denoted by the symbol %. The term "per cent" means "per hundred." For example: if you have a score of 60% on a test, it means you got 60 out of 100 questions correct or you got 30 out of 50 questions.

Percentage Formula for Calculation

Below is an example that explains how to calculate the percentage, determine the part value, and find the complete whole value.

Calculate Percentage

Inputs: Part and Whole

  • Formula: Percentage=(PartWhole)×100\text{Percentage} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100
Calculate Part

Inputs: Percentage and Whole

  • Formula: Part=(Percentage×Whole100)\text{Part} = \left( \frac{\text{Percentage} \times \text{Whole}}{100} \right)
Calculate Whole

Inputs: Part and Percentage

  • Formula: Whole=(Part×100Percentage)\text{Whole} = \left( \frac{\text{Part} \times 100}{\text{Percentage}} \right)
Percentage calculation example explaining part, whole, fraction, and percentage

How to calculate percentage of a number

A percentage calculator is super user-friendly! Here how to use it step by step:

Pick Your Calculation Type: There are three boxes on the calculator. You can select either percentage, part, or whole.
1. Input Values: Enter the known values for the Part, Whole, or Percentage.
2. Click Calculate: The percentage calculator automatically applies the appropriate formula.
3. View Result: The final result is displayed, showing the percentage, part, or whole as required.

FAQ on Age Calculator

1. What is a percentage?

A percentage is a way of expressing a number as a part of 100. It shows how much something is out of a total and is represented using the % symbol.

2. How do you calculate a percentage?

To calculate a percentage, divide the part by the whole and multiply the result by 100.
Formula: (Part ÷ Whole) × 100

3. How do I calculate the percentage of a number?

Multiply the number by the percentage and divide by 100. For example, 20% of 200 equals (20 × 200) ÷ 100 = 40.

4. How do I find the original number from a percentage?

To find the whole value, divide the part by the percentage and multiply by 100.
Formula: (Part × 100) ÷ Percentage

5. Can percentages be greater than 100?

Yes, percentages can be more than 100% when the part value is greater than the whole, such as profit growth or increased measurements.