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Boat Horsepower Calculator
Estimate the engine power needed for a boat from its weight and target speed.
wave Free Online Tool
⚡ Instant Results
📊 Clear Comparison
🔒 100% Free Tool
Power
Compare Your Options And Get Clear Answers
Estimate the engine power needed for a boat from its weight and target speed.
Boat Horsepower Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Planing hulls need roughly weight / 10 hp for 40 mph.
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
Boat Quick Guide
Typical values for reference.
| Weight lb | Speed mph | Hull | Power hp |
|---|---|---|---|
| 1500 | 25 | 1 | 94 hp |
| 3000 | 30 | 1 | 225 hp |
| 5000 | 35 | 1 | 438 hp |
| 8000 | 40 | 1 | 800 hp |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Boat Horsepower Calculator FAQ
Answers to common questions about this calculator.
Planing hulls often need about 1 hp per 10-20 lb.
Yes, check the capacity plate on the boat.
Planing hulls need roughly weight / 10 hp for 40 mph.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.