True Wind Pro

Try the full true wind calculator with 5 free calculations. Unlock unlimited calculations forever with a one-time purchase — no subscription.

True Wind Pro is a precise nautical wind calculator and training tool designed for sailors, navigators, and marine students.

Convert apparent wind into true wind direction and speed using the classic nautical-school vector method — clearly visualized and easy to understand.

Key Features

• True wind direction (TWD) and speed (TWS) calculation • Apparent wind (AWA / AWS) support • Interactive radar and wind triangle plot • Step-by-step vector construction (nautical-school method) • Reverse calculator: find heading for a target apparent wind angle • Beaufort scale interpretation • Clean, distraction-free interface optimized for marine use

Designed for Learning & Practice

True Wind Pro doesn’t just give you numbers — it shows how the result is constructed. Perfect for sailing schools, exam preparation, and real-world navigation planning.

Free & Pro

You can perform 5 free calculations to try the app. Unlock True Wind Pro – Lifetime to get unlimited calculations forever with a one-time purchase.

No subscriptions. No ads.

Ideal for sailors, skippers, students, and anyone who wants to truly understand wind mechanics at sea.