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Course correction & tidal set — calculators for sailors
From true course to steered course: variation, deviation and tidal set in one traceable flow — no cloud, no subscription.
Course work under time pressure
On the bridge you don't want to hunt through tables or hope for a signal. Course correction and tidal triangle belong in a tool that works offline and stays readable.
In NauticCalc
- ·Full course chain MgK ↔ mwK ↔ rwK ↔ KdW ↔ KüG with stored deviation table
- ·Tidal correction and tidal triangle in the same navigation section
- ·Lee helm correction from Beaufort or knots
- ·GPS position as context — calculation stays local
- ·Documented nautical formulas, not a toy calculator
- ·A note when the wind or current correction exceeds 45° — usually a drift angle worked out for a different course
Calculate without signal
Course correction, variation and tidal set run offline. GPS uses the device — no server.
Precision over marketing
Built for real passages, proven with skippers across the DACH region. Aid — not a certified navigation system.
Frequently asked questions
Yes — all course and tidal calculators run locally. Live data only for optional weather/tides with your own API key.
MgK = compass course (read off the compass), mwK = magnetic course, rwK = true course, KdW = course through the water, KüG = course over ground. Course correction links all five, and the app shows the whole chain.
Related topics
Course clear — even without network
On the App Store · One-time purchase
