Boat Speed Calculator
Calculate your boat’s speed based on length, engine, and conditions
Hull Length
Engine Power
Advanced
Speedboat
Planing (20 ft)
Sailboat
Displacement (35 ft)
Trawler
Semi-Displacement (42 ft)
Pontoon
Pontoon (24 ft)
Calculated Speed
18.4
Estimated range: 16.5-20.2 knots
Typical for a 25ft planing hull boat
12.2
Hull Speed (knots)
Medium
Efficiency
Moderate
Accuracy
Performance Analysis
Efficiency
Power
Drag
Speed Comparison
Displacement Hull: ~8.3 knots
Semi-Displacement: ~12.7 knots
Planing Hull: ~18.4 knots (current)
Catamaran: ~22.1 knots
This calculator provides estimates based on typical performance characteristics. For precise speeds, consult with a marine engineer or boat manufacturer.