True Wind Calculator
Convert apparent wind to true wind speed and angle
Degrees from bow (0° = dead ahead, 180° = dead astern)
True Wind Results
True Wind Speed (TWS)
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True Wind Angle (TWA)
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Point of Sail
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Beaufort Scale
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VMG Component
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Apparent Wind Speed
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Apparent Wind Angle
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Boat Speed
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Wind Indicator
■ True Wind
■ Apparent Wind
Points of Sail
| TWA | Point of Sail | Sail Trim | Notes |
|---|---|---|---|
| 0° - 30° | No-go zone / In irons | -- | Cannot sail, must tack |
| 30° - 50° | Close hauled | Sails tight | Beating to windward |
| 50° - 80° | Close reach | Eased slightly | Fast point of sail |
| 80° - 110° | Beam reach | Half out | Often fastest VMG |
| 110° - 150° | Broad reach | Well out | Comfortable sailing |
| 150° - 180° | Running | Full out | Risk of accidental gybe |