Kilometers Per Hour
February 27, 2025
Kilometers per hour (km/h or kph), often written kilometres per hour in British English, is a metric unit of speed sometimes used in marine forecasts, instruments, and app settings to express how fast air, water, or a vessel is moving. In boating it may describe wind speed, current speed, or speed over ground, although nautical practice more commonly uses knots.
Understanding km/h helps when comparing local weather reports, marina speed limits, or onboard displays set to metric units. For passage planning, convert accurately between Knots and km/h: 1 knot equals 1.852 km/h, and 1 km/h equals about 0.54 knots. This keeps estimates aligned with Nautical Miles and improves decisions based on forecast Wind Speed.
In PredictWind, unit preferences let you view forecasts in the format that suits your crew, while routing calculations remain consistent behind the scenes. When using the Forecast or Offshore App, or Weather Routing, checking units before departure avoids errors in arrival times, sail selection, fuel range, and safety margins.
