### SDT Calculations

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## Speed Distance Time Calculations

Speed distance time calculations are used in passage planning.

You can work out how far you can travel, how fast you go and how long a trip will take.

Speed on a boat is measured in knots.

Knots are nautical miles per hour.

Knots tell you the distance a boat can travel in one hour.

Distance is measured in nautical miles.

Time is measured in hours.