Flooding Rate Calculator

Calculate rate of flooding through hull breach based on hole size and depth below waterline

Input Parameters

Results

--
Inflow Rate
gpm
--
Time to Flood
minutes
--
Pump Status
--
Net Flooding Rate
gpm

Reference

Torricelli flow: Q = Cd × A × √(2gh) Cd = 0.97 for sharp-edged orifice 1" hole at 3ft depth ≈ 20 GPM Common bilge pump: 500-2000 GPH (8-33 GPM) 1 ft³ = 7.48 gallons