Percentage Error Calculator - Savvy Calculator

Introduction

Percent error is a crucial metric in various fields, helping assess the accuracy of measurements or experimental results. Our Percent Error Calculator simplifies this process, making it easy to determine the percentage error between a true value and a measured value.

How to Use

Using the Percent Error Calculator is straightforward. Follow these steps:

True Value: Enter the known or expected value in the “True Value” field.
Measured Value: Input the value obtained through measurement or experimentation in the “Measured Value” field.
Calculate: Click the “Calculate” button to instantly compute the percentage error.

Formula

The percent error is calculated using the following formula:

$Percent Error (%) = ∣ ∣ True Value True Value - Measured Value ∣ ∣ \times 100$

Example

Let’s say you measure a length as 15 cm (Measured Value), but the true length is 14 cm (True Value). Plug these values into the formula:

$Percent Error (%) = ∣ ∣ 14 14 - 15 ∣ ∣ \times 100$

$Percent Error (%) = 14 1 \times 100 \approx 7.14%$

FAQ’s

Q1: What does a negative percent error mean?

A negative percent error indicates that the measured value is lower than the true value.

Q2: Can percent error be more than 100%?

Yes, percent error can exceed 100%, indicating a significant deviation from the true value.

Q3: How accurate should my measurements be to have a low percent error?

Accurate measurements yield a lower percent error. Precision and consistency in measurements contribute to accuracy.

Conclusion

The Percent Error Calculator is a valuable tool for scientists, researchers, and students, providing a quick and efficient way to assess the reliability of measurements. Understanding and calculating percent error contribute to the improvement of experimental techniques and overall scientific accuracy.