HVAC Design Desk | Pipe Size Calculator

Inputs

Flow Rate (GPM) Velocity (Ft/S) Max is 8 ft/s Pipe Material Pipe Type

Outputs

Pipe Size (mm) —

Actual Velocity (Ft/S) —

Pr. Drop – Ft per 100 ft of pipe —

The calculator selects the smallest available pipe that satisfies the maximum velocity limit. Pipe roughness and wall thickness are stored in the backend data table and are selected from the chosen material and pipe type. Verify the final pipe standard and manufacturer dimensions before engineering issue.