# Percentage Error Calculator

Error **calculator** is a must-have **task** in the **field** of Science **especially** when it comes to **experimental** calculations. But this calculation is not **done** in the form of **simple** integers but it is **done** in the form of **percentage**. It means that the **error** is calculated in **percentage** format to **make** it more clear and **precise**.

Don’t you **know **how to do this calculation? Are you **looking** for assistance to find **errors** in your **work** and completing your **assignment**? You should use this percentage **error **calculator which has been **designed** just for students** like** you. This maths calculator has a specific **algorithm** according to which it will find the **percentage** error using your **input** values.

**Table of Contents**

## What is Percentage Error?

The percentage **error** is the **calculation** of error in percentage **format **instead of **integer** calculation. This calculation is **normally** done in experimental **projects** to **check** how much the **calculated** values have **deviated **from the **original** value.

It **means** that this error **shows** how far **your **results have been **spotted** from the standard **ones**. You can **calculate** the percentage **error** if you have the standard **values** and results **obtained** from your **work**. In the following **section**, we will show **how** you can do this using a specific **formula**.

### What is the Percentage Error Formula?

The **formula** for the calculation of percentage **error** is pretty **simple**. You can **easily** understand and **use **it to find this **measurement**. Here is the formula you have to **follow**:

Percentage Error = Standard Value - Observed Value/Standard Value × 100%

In this formula, “**Standard Value**” represents the **original** or true **value **of the measurement while “**Observed Value**” **belongs** to your **obtained** results.

### How to Calculate the Percentage Error?

As you can **see**, the formula for **percentage** error is simple and **easy** to understand. You can** easily** put the **values** in this formula to find the **error**. If you are still **confused**, you can get **guidance** from the following **solved** example.

**Example 1:**

Find the percentage error if the **standard** value is **120** while the observed value is **89**.

**Solution:**

We **need** to put the given values in the **following** formula.

Percentage Error = Standard Value - Observed Value/Standard Value × 100%

By putting the values,

Percentage Error = 120- 89/120 × 100%

= 31/120 × 100%

Percentage Error = 25.83%

### How to use the Percentage Error Calculator?

If you are feeling it **difficult** to find the percentage **error**, you should** use** this tool designed by Calculator’s Bag. This **tool** has a simple **working** method that you can complete with the following **steps**.

- Insert the standard/true value in the first input box.
- Insert the observed value in the second input box.
- This calculator will instantly find the percentage error and show it on the screen.

### FAQ | Percentage Error Calculator

**What is the percentage error in 9.89 g?**

To find the percentage error, we have the standard value. On the other side, we can find the relative error for this value which comes out to be 0.1%.

**What is a percentage error example?**

Being a student, you must have the expected numbers to pass your exams. The expected marks and obtained marks can be expressed in terms of percentage error as it also shows how your results are deviating from the true/expected/standard values.

**What is the percent error in accuracy? **

Percentage error shows exactly how far the obtained results are from the standard ones.

**What does a 100% percent error mean? **

It means that the calculations are 100% wrong and deviate from the true values.

**Can percentage error be negative? **

Yes, it can be negative but normally we consider it as positive because the more chances of acceptance of results are when the percentage error is positive.