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NM per Minute Calculator
Convert groundspeed to nautical miles traveled each minute and seconds per NM.
kt
NM per minute—
Seconds per NM—
Feet per minute—
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120 knots is 2 NM per minute
At 120 kt, 120 / 60 = 2 NM/min. One nautical mile takes 30 seconds; a point 6 NM away takes 3 minutes at constant groundspeed.
Use groundspeed for distance over the ground. Airspeed substitutes only in a deliberately stated no-wind example.
Formula and method
Nautical miles per minute = groundspeed in knots ÷ 60.