Use this GPM calculator tool to quickly determine the gallons per minute flow rate for your plumbing or pump system.

## Gallons Per Minute (GPM) Calculator

### How to Use the GPM Calculator

To use the GPM calculator, simply enter the flow rate of your system in gallons per minute in the input field and press the “Calculate” button. The result will be displayed instantly in the Result field.

### How This Tool Calculates Results

The GPM calculator takes the value you’ve entered, which should be a numerical value representing the flow rate of a fluid in gallons per minute. It then validates this value to ensure it’s a positive number and displays the same value with the “GPM” unit as a confirmation of the input provided.

### Limitations of the GPM Calculator

This tool is designed to provide quick calculations for typical flow rates; however, it does not account for complex scenarios such as varying fluid dynamics or temperature-dependent viscosity changes. The accuracy of the result is also dependent on the accuracy of the input provided. Always ensure that the value entered is a correct and actual measurement.