# What is the percent error between 12 and 55?

### Percentage (%) Error Calculator

## How to calculate Percent Error - Step by Step Solution

The Percent Calculator (Error) uses this formula:

The terms "experimental" and "theoretical" used in the equation above are commonly replaced with similar terms. Some terms also used for experimental are "measured," or "actual" and for theoretical the terms "accepted" and "calculated" are frequently used.

The Percent Error can be a positive or a negative number. If the experimental value is greater than the theoretical value, the result will be positive. On the other hand, if the experimental value is smaller than the theoretical value, the result will be negative. See more about percent error here.

This calculator can answers to questions like:

1) What is the percent error supposing 55 as the measured value and 12 as the calculated value?

2) What is the percent error supposing 12 as the measured value and 55 as the calculated value?

3) What is the absolute error between 12 and 55 supposing 12 as the theoretical value? Or may be: What is the percent error between 12 and 55?

See the solutions to these problems below.

### 1) What is the percent error supposing 55 as the measured value and 12 as the calculated value?

Use the formula above to find the percent error. So, replacing the given values, we have

Percent error = [(55 - 12) / 12] x 100

= (43 / 12) x 100

= 358.33333333333 % (positive error)

In this case we have a % of positive error because the experimental is greater than the theoretical.

### 2) What is the absolute error between 12 and 55 considering 12 as the theoretical value?

This problem is not about percent or relative error, but about absolute error. The solution is very simple:

= 55 - 12 = 43 (positive error)

### Percentage (%) Error Calculator

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