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Boat Speed Calculator

Estimate your boat's top speed based on its specifications

Quick Samples
Try these common configurations to get started

25ft Sport Cruiser

Common planing V-hull

35ft Sailboat

Typical displacement hull

40ft Trawler

Efficient long-range cruiser

Hull Dimensions
Enter your boat's principal dimensions
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About This Tool
This calculator provides a general estimate of a boat's top speed based on its key characteristics. It uses established formulas to approximate performance for different hull types.

Key Concepts:

Hull Speed: The theoretical maximum speed of a displacement hull.
Planing Speed: Achieved when a hull lifts and skims on the water.
Power-to-Weight Ratio: A key factor in the performance of planing hulls.
S/L Ratio: A measure of speed relative to hull length.
Frequently Asked Questions

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