# Percent error calculator

# percent error calculator:

**Percent error is used to compare a measured or experimental value to a known or accepted value. The formula for percent error is:**

**| (measured value – accepted value) / accepted value | x 100%**

The resulting value will be a percentage representing the percent error. The absolute value of the difference is taken to ensure that the percent error is always positive.

**Here’s an example to show you how to use the calculator:**

Suppose you measured the weight of an object to be 50 grams, but the actual weight is 55 grams. What is the percent error?

**Step 1:** Calculate the absolute difference between the measured and accepted values: |50 – 55| = 5

**Step 2:** Divide the absolute difference by the accepted value: 5/55 = 0.0909

**Step 3:** Multiply by 100% to get the percent error: 0.0909 x 100% = 9.09%

So the percent error is 9.09%.

**Here’s the calculator:**

**Input the measured value: 50 Input the accepted value:** 55

Result: 9.09%