Pipe Velocity Calculator
Calculate fluid velocity from flow rate and pipe diameter
Input Parameters
Pipe Area
Area:7.069 sq inArea:0.04909 sq ft
Velocity Formula:
V = Q / A = (GPM × 0.002228) / (π × D²/4)
Velocity Results
Flow Velocity
4.54 ft/s
1.383 m/s | 272 ft/min
Velocity Assessment
Normal - Recommended range
Flow Properties
Flow Rate:100.0 GPMFlow Rate:0.2228 ft³/sVelocity Pressure:0.1388 psiReynolds No.:93239
Pipe Capacity at Standard Velocities
At 4 ft/s:88 GPMAt 6 ft/s:132 GPMAt 8 ft/s:176 GPM
Velocity Guidelines:
Cold Water Supply:4-8 ft/sHot Water Supply:4-5 ft/sChilled Water:4-10 ft/sDrainage:2-6 ft/sSteam:50-100 ft/s