RMSE
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
RMSE
About this calculator
The RMSE (Root Mean Square Error) calculator is an important tool in regression analysis.
It calculates the mean of the square errors between the predicted and actual values, and then finds the square root of this mean.
RMSE is a common performance measure in regression problems, used to evaluate the accuracy of a model.
This tool is useful when you need to evaluate the quality of a regression model and compare it with other models.
Frequently asked questions
What is RMSE?
RMSE is the square root of the mean of the square errors between the predicted and actual values.
When to use RMSE calculator?
Use this calculator when you need to evaluate the accuracy of a regression model and compare it with other models.
What is MSE?
MSE is the mean of the square errors between the predicted and actual values.
Why is RMSE important?
RMSE is important because it provides a useful performance measure to evaluate the accuracy of a regression model.