This tool helps you determine the appropriate size for your water supply line.

## How to use the Water Supply Line Size Calculator

This calculator helps you determine the necessary pipe diameter for your water supply line based on several parameters:

**Number of Fixtures:**The total number of water fixtures (e.g., faucets, showers) connected.**Pipe Length:**The total length of the pipe in feet.**Flow Rate per Fixture:**The flow rate for each fixture in GPM (gallons per minute).**Supply Pressure:**The water supply pressure in PSI (pounds per square inch).**Pipe Material:**The material of the pipe (e.g., Copper, PEX, CPVC).**Elevation Change:**The elevation change in feet (if any) in the pipe’s path.

Once you fill in these values, click “Calculate” to determine the required pipe diameter in inches.

## Limitations

This calculator provides an estimate based on simplified assumptions and may not account for all variables in real-world scenarios. It’s always recommended to consult with a professional plumber or engineer for precise calculations and appropriate material selection.