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BSFC Calculator
Brake specific fuel consumption from fuel flow and engine power, with efficiency.
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BSFC
Compare Your Options And Get Clear Answers
Brake specific fuel consumption from fuel flow and engine power, with efficiency.
BSFC Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: BSFC = fuel flow (g/h) / power (kW).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
BSFC Quick Guide
Typical values for reference.
| Fuel kg/h | Power kW | LHV | BSFC |
|---|---|---|---|
| 8 | 40 | 43 | 200.0 g/kWh |
| 12 | 50 | 43 | 240.0 g/kWh |
| 25 | 100 | 43 | 250.0 g/kWh |
| 60 | 250 | 43 | 240.0 g/kWh |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
BSFC Calculator FAQ
Answers to common questions about this calculator.
Around 200-250 g/kWh for diesel and 250-350 for petrol engines.
Power divided by fuel energy rate.
BSFC = fuel flow (g/h) / power (kW).
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.