Spinnaker Sizing Calculator

Calculate asymmetric and symmetric spinnaker dimensions from rig measurements

Input Parameters

Results

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Spinnaker Luff
ft
--
Max Width (SMW)
ft
--
Foot Length
ft
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Approx Area
ft²

Reference

Symmetric: SL ≈ 0.95×I, SMW ≈ 1.8×J Asymmetric: SL ≈ 1.05×I, SMW ≈ 1.6×J Code 0: Flat cut reaching sail, narrow width