Calculate percentages quickly with our free Percentage Calculator. Find a percentage of a number, calculate what percentage one number is of another, or work backward to find the whole number when you know a percentage and its value.
For example, you can use it to answer questions such as 10% of 500, 30 is what percentage of 150, or 500 is 25% of what number?
Percentage Calculator
Percentage Calculator
Calculate what percentage one value is of another.
Percentage Calculator
Calculate percentages using three common percentage methods.
What Can You Calculate With a Percentage Calculator?
People ask percentage questions in different ways, but most basic percentage calculations fall into three common patterns.
Pattern 1: Find a Percentage of a Number
These questions all ask you to find X% of Y:
What is 10% of 500?
10 percent of 500
Calculate 10% of 500
15% of 80,000
How much is 20% of 500?
All of these mean the same thing:
X% of Y
Formula
X% of Y = (X ÷ 100) × Y
For example: 10% of 500
= (10 ÷ 100) × 500
= 50
So, 10% of 500 is 50.
The same calculation works with any percentage and number.
Pattern 2: Find What Percentage One Number Is of Another
These questions ask you to find what percentage one value represents of another:
30 is what percentage of 150?
What percentage is 30 of 150?
What percentage is 30 out of 150?
How many percent is 30 out of 150?
50 is what percent of 200?
All of these ask:
X is what percentage of Y?
Formula
Percentage = (Part ÷ Whole) × 100
For example: 30 is what percentage of 150?
= (30 ÷ 150) × 100
= 20%
Therefore, 30 is 20% of 150.
This method is useful whenever you know a part and the total and want to express the part as a percentage of the whole.
Pattern 3: Find the Whole Number From a Percentage
Sometimes you know the percentage and the value it represents, but you don’t know the original or whole number.
For example:
500 is 25% of what?
100 is 20% of what number?
60 is 15% of what?
25% of what number is 500?
30% of what is 600?
These questions all ask:
X is Y% of what number?
Formula
Whole = Part ÷ (Percentage ÷ 100)
For example: 500 is 25% of what number?
= 500 ÷ (25 ÷ 100)
= 500 ÷ 0.25 = 2,000
Therefore, 500 is 25% of 2,000.
This type of calculation is useful when you know a percentage and its corresponding value and want to work backward to find the whole.
How to Calculate a Percentage (percentage kaise nikale)
The basic percentage formula is: Percentage = (Part ÷ Whole) × 100
A percentage expresses a value in relation to 100.
For example, if you have 40 out of 50, the percentage is:
(40 ÷ 50) × 100 = 80%
Therefore, 40 out of 50 is 80%.
The same method can be used for marks, quantities, completed tasks, survey results, money, and many other situations where you know a part and a total.
If you are asking “percentage kaise nikale,” “percentage kaise nikalte hain,” or “percentage kaise nikaalte hain,” this is the basic calculation to use when finding the percentage represented by one value out of a total.
How to Find X% of a Number
To calculate a percentage of a number, divide the percentage by 100 and multiply it by the number.
Formula
Percentage of a number = (Percentage ÷ 100) × Number
Example 1: What is 20% of 500?
(20 ÷ 100) × 500 = 100
Answer: 100
Example 2: What is 30% of 200?
(30 ÷ 100) × 200 = 60
Answer: 60
Example 3: What is 15% of 80,000?
(15 ÷ 100) × 80,000 = 12,000
Answer: 12,000
Whether the number is 500, 200, 80,000, or any other value, the formula remains the same.
How to Find What Percentage One Number Is of Another
When you want to know what percentage one number represents of another, divide the part by the whole and multiply by 100.
Formula
Percentage = (Part ÷ Whole) × 100
Example: What percentage is 75 of 300?
(75 ÷ 300) × 100 = 25%
So, 75 is 25% of 300.
Another example:
What percentage is 125 out of 500?
(125 ÷ 500) × 100 = 25%
So, 125 out of 500 is 25%.
This is the calculation you need when you know the part and total and want to find the percentage.
How to Find a Number From a Known Percentage
If you know that a particular value represents a certain percentage of a number, you can calculate the whole by dividing the value by the percentage expressed as a decimal.
Formula
Whole = Part ÷ (Percentage ÷ 100)
Example
100 is 20% of what number?
First convert 20% to a decimal:
20 ÷ 100 = 0.20
Then:
100 ÷ 0.20 = 500
Therefore:
100 is 20% of 500.
Another example:
60 is 15% of what number?
60 ÷ (15 ÷ 100)
60 ÷ 0.15 = 400
Therefore:
60 is 15% of 400.
How to Calculate a Percentage of Money
Percentage calculations work the same way when dealing with money.
For example:
What is 15% of ₹20,000?
(15 ÷ 100) × ₹20,000
= ₹3,000
Therefore, 15% of ₹20,000 is ₹3,000.
You can use the same method for any currency because the percentage formula does not change based on the currency.
For example:
- 10% of ₹5,000 = ₹500
- 20% of ₹10,000 = ₹2,000
- 5% of ₹40,000 = ₹2,000
How to Calculate Percentage on a Calculator
The calculation you need depends on the question you are trying to answer.
To find a percentage of a number
For 20% of 500:
20 ÷ 100 × 500 = 100
To find what percentage one number is of another
For 30 out of 150:
30 ÷ 150 × 100 = 20%
To find the whole number
For 500 is 25% of what?:
500 ÷ (25 ÷ 100) = 2,000
If you are unsure which formula applies to your question, use the calculator above and select the calculation that matches the information you have.
Percentage Formula
There are three basic formulas used by this calculator.
Find a percentage of a number
Result = (Percentage ÷ 100) × Number
Example:
25% of 200 = (25 ÷ 100) × 200 = 50
Find what percentage one number is of another
Percentage = (Part ÷ Whole) × 100
Example:
25 ÷ 200 × 100 = 12.5%
Find the whole from a known percentage
Whole = Part ÷ (Percentage ÷ 100)
Example:
50 ÷ (25 ÷ 100) = 200
These three formulas cover the basic percentage questions that this calculator is designed to solve.
Percentage Examples
| Percentage Question | Calculation | Answer |
|---|---|---|
| What is 10% of 500? | 10 ÷ 100 × 500 | 50 |
| What is 25% of 200? | 25 ÷ 100 × 200 | 50 |
| What is 30% of 200? | 30 ÷ 100 × 200 | 60 |
| What is 15% of 80,000? | 15 ÷ 100 × 80,000 | 12,000 |
| What percentage is 30 of 150? | 30 ÷ 150 × 100 | 20% |
| What percentage is 75 of 300? | 75 ÷ 300 × 100 | 25% |
| What percentage is 400 of 500? | 400 ÷ 500 × 100 | 80% |
| 500 is 25% of what? | 500 ÷ 0.25 | 2,000 |
| 60 is 15% of what? | 60 ÷ 0.15 | 400 |
How to Calculate Percentage Quickly
Some common percentages can be calculated mentally.
10%
To find 10% of a number, divide the number by 10.
10% of 500 = 50
50%
50% is one-half of a number. So, 50% of 600 = 300
25%
25% is one-quarter of a number. So, 25% of 500 = 125
1%
To find 1%, divide the number by 100.
1% of 500 = 5
For less familiar percentages, you can use the calculator above instead of calculating manually.
Percentage in Everyday Calculations
Percentages are used in many situations where one amount needs to be expressed in relation to another.
Marks and scores
If you score 80 marks out of 100:
80 ÷ 100 × 100 = 80%
Your score is 80%.
Completed work
If you complete 45 tasks out of 60:
45 ÷ 60 × 100 = 75%
You completed 75% of the tasks.
Money
If you want to find 10% of ₹15,000:
10 ÷ 100 × 15,000 = ₹1,500
Quantities
If 12 items are selected from a total of 48:
12 ÷ 48 × 100 = 25%
So, the selected items represent 25% of the total.
The formula stays the same even when the situation changes.
Common Percentage Questions (FAQ)
The basic formula is: Percentage = (Part ÷ Whole) × 100
For example, if 20 is part of a total of 80: 20 ÷ 80 × 100 = 25%
So, 20 is 25% of 80.
Use: (20 ÷ 100) × 500 = 100
Therefore, 20% of 500 is 100.
Divide the part by the whole and multiply by 100.
For example: 30 ÷ 150 × 100 = 20%
Therefore, 30 is 20% of 150.
Divide the known value by the percentage expressed as a decimal.
For example:
500 is 25% of what?500 ÷ 0.25 = 2,000
Therefore, 500 is 25% of 2,000.
First identify the type of calculation:
X% of Y: (X ÷ 100) × Y
X is what percentage of Y: (X ÷ Y) × 100
X is Y% of what: X ÷ (Y ÷ 100)
Our calculator provides these basic percentage calculations without requiring you to work through the formulas manually.
Yes. A percentage can be greater than 100% when the value being compared is greater than the reference value.
For example:150 ÷ 100 × 100 = 150%
Therefore, 150 is 150% of 100.
Yes. Percentages can be whole numbers or decimals.
For example:
12.5% of 200 = 25
So, 12.5% is a valid percentage.
To find 1% of a number, divide it by 100.
For example:
1% of 800 = 8
50% represents one-half of a number. For example: 50% of 600 = 300