Percentage Calculator

Use this calculator to find a percentage of a number.

Step 1: Enter Your Numbers

Number:

Percentage:

Result

How the Percentage Calculator Works: 

Input Numbers: Users enter a number and a percentage. 

Calculate Result: The calculator computes the percentage of the given number. 

Display Result: The result is displayed in the result section, showing both the percentage and the number involved.

What is a Percentage Calculator?

A Percentage Calculator is a tool that allows users to quickly compute the percentage of a number, find the total value based on a given percentage, or determine what percentage one number is of another. This calculator simplifies mathematical calculations involving percentages, making it easier for individuals to perform these tasks without needing to manually do the math.

How It Works

The Percentage Calculator typically works by taking two inputs from the user: a number and a percentage. It then performs calculations based on these inputs to provide results.

Common Uses of a Percentage Calculator:

1. Finding a Percentage of a Number: For example, determining what 20% of 50 is.
2. Calculating the Total from a Percentage: If you know that 15 is 30% of a number, you can find the total value.
3. Finding What Percentage One Number Is of Another: For example, determining what percentage 30 is of 120.

Formula

The formulas used in percentage calculations can be summarized as follows:

1. Finding a Percentage of a Number:

   $$\text{Percentage of a Number} = \left( \frac{\text{Percentage}}{100} \right) \times \text{Number}$$
   • Example: To find 20% of 50: $$\text{Result} = \left( \frac{20}{100} \right) \times 50 = 10$$

2. Calculating the Total from a Percentage:

   $$\text{Total} = \frac{\text{Part}}{\left( \frac{\text{Percentage}}{100} \right)}$$
   • Example: If 15 is 30% of a number: $$\text{Total} = \frac{15}{\left( \frac{30}{100} \right)} = 50$$

3. Finding What Percentage One Number Is of Another:

   $$\text{Percentage} = \left( \frac{\text{Part}}{\text{Total}} \right) \times 100$$
   • Example: To find what percentage 30 is of 120: $$\text{Percentage} = \left( \frac{30}{120} \right) \times 100 = 25\%$$

Example of How It Works

1. Input: A user enters 50 as the number and 20 as the percentage in the calculator.
2. Calculation:
   • Using the formula for finding a percentage of a number: $$\text{Result} = \left( \frac{20}{100} \right) \times 50 = 10$$
3. Output: The calculator displays that 20% of 50 is 10.

Conclusion

A Percentage Calculator is a valuable tool for anyone who calculate quick calculations involving percentages. Whether for educational purposes, financial calculations, or everyday tasks, understanding how to use this calculator and the underlying formulas can save time and improve accuracy in mathematical computations.

FAQ for Percentage Calculator

1. What is a Percentage Calculator?
A Percentage Calculator is a tool that allows you to quickly calculate percentages, find the total based on a given percentage, or determine what percentage one number is of another.

---

2. How do I use the Percentage Calculator?
To use the Percentage Calculator, simply enter a number and a percentage in the provided fields, then click the "Calculate" button. The result will display the calculated percentage or value.

---

3. Can I calculate what percentage one number is of another?
Yes! You can determine what percentage one number is of another by entering the two numbers in the respective fields. The calculator will provide the percentage result.

---

4. What formulas does the Percentage Calculator use?
The calculator uses the following formulas:

• To find a percentage of a number: $\text{Percentage of a Number} = \left( \frac{\text{Percentage}}{100} \right) \times \text{Number}$
• To find the total from a percentage: $\text{Total} = \frac{\text{Part}}{\left( \frac{\text{Percentage}}{100} \right)}$
• To find what percentage one number is of another: $\text{Percentage} = \left( \frac{\text{Part}}{\text{Total}} \right) \times 100$

---

5. Is the Percentage Calculator free to use?
Yes, the Percentage Calculator on The USA List is completely free to use and accessible to everyone.