# Brake Horsepower

## formula

\(BHP = \frac {100Qh} {3960n} \)

Where:

\(BHP\) = brake horsepower

\(Q\) = discharge of flow rate

\(h\) = total head

\(n\) = total pump efficiency

\(WHP\) = water horsepower

Solve for:

\(Q = \frac {3960 WHP} {h} \)

\(h = \frac {3960 WHP} {Q} \)

\(n = \frac {WHP} {BHP} \)

\(WHP = \frac {Q h} {3960} \)

Tags: Equations for Power