BSFC Calculator
Brake Specific Fuel Consumption (BSFC) measures how efficiently an engine converts fuel into power. Use this tool to calculate your engine's efficiency.
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g/kWh (Metric)
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lb/hph (Imperial)
What is BSFC?
Brake Specific Fuel Consumption is a measure of fuel efficiency for internal combustion engines. It looks at how much fuel (by mass) is consumed to produce a unit of power.
BSFC = Fuel Rate / Power
- Lower BSFC means better efficiency (the engine uses less fuel to make the same power).
- Diesel engines typically have lower BSFC values (more efficient) than gasoline engines.