🚀 Speed Converter

Convert maritime and standard speed units. Includes automatic classification for vessel performance categories ranging from slow steaming to service speeds.

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🚀 Speed Conversion

Quick Select (Knots)

Reference ToolISO 19030 • SOLAS COMPLIANT

Accuracy monitored to 4 decimal places.
Always verify with manual navigation logs.

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How to Use

📌 When to Use

  • Speed log verification against manual calculations.
  • Weather reports providing wind speed in mph or m/s.
  • Pilotage briefings where different units might be mentioned.

🔧 Operation Guide

  • 1.Enter the speed value.
  • 2.Select the unit (Knots is maritime standard).
  • 3.Review conversion across SI and Imperial units.
  • 4.Check the speed category for container ship classification.

Important Note

Speed Over Ground (SOG) vs Speed Through Water (STW): STW factors in currents and tides, essential for fuel planning.

💡 Example Calculation

Classify 13 knots vessel speed

  • Input: 13 kn
  • Result: 24.076 km/h
  • Category: Eco Speed
  • Application: Standard economical cruise