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Pump Power Calculator

Calculate brake horsepower (BHP) for centrifugal pumps. BHP = Q × TDH × SG / (3960 × η). Used for production, injection, and transfer pump sizing.

Input Parameters

Flow Rate, Q (GPM)

Total Dynamic Head (ft)

Specific Gravity

Pump Efficiency (%)

Brake HP

Power (kW)

Water HP

Discharge (psi)

Fresh Water SG: 1.00

Produced Water SG: 1.02-1.15

Crude Oil SG: 0.80-0.95

Diesel SG: 0.83

Typical pump eff: 60-85%

1 HP = 0.7457 kW