Ballast Water Exchange Calculator
Calculate ballast exchange volume, time, and compliance for BWM Convention requirements.
Inputs
ft³
ft³
ft³/min
Results
Volume to Pump
105,000 ft³
Exchange Time
8.8 hours
Volume to Pump (m³)2,973.3 m³
Exchange Efficiency95%
Ballast Weight1,000 LT
Fill Percentage70%
How to Use This Calculator
- Enter the total ballast tank capacity and current ballast volume in cubic feet.
- Select the exchange method: sequential (empty then refill) or flow-through (3x volume flush).
- Input the pump rate in ft³/min to calculate exchange time in hours.
- Review the exchange volume in ft³ and m³ and the estimated exchange efficiency percentage.
- Check the ballast weight in long tons for stability and trim planning.
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