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30 knots to miles per hour

30 knots = 34.52338 miles per hour

Rounded to a practical precision: 34.5 mph.

How the calculation works

One knot is 1.15078 miles per hour, so:

30 kn × 1.15078 = 34.52338 mph

Reversing it, 34.52338 miles per hour ÷ 1.15078 returns 30 knots.

Nearby values

KnotsMiles Per Hour
26 kn29.92027 mph
27 kn31.07105 mph
28 kn32.22182 mph
29 kn33.3726 mph
30 kn34.52338 mph
31 kn35.67416 mph
32 kn36.82494 mph
33 kn37.97572 mph
34 kn39.1265 mph

About these units

Knot (kn) — A knot is one nautical mile per hour and is the speed unit used at sea and in aviation.

Mile per hour (mph) — Miles per hour is the road speed unit of the United States and United Kingdom.

Frequently asked questions

How many miles per hour is 30 knots?

30 knots is 34.52338 miles per hour.

How do I convert knots to miles per hour myself?

Multiply by 1.15078. To go back, divide by 1.15078 — or multiply by 0.868976.

Is this figure exact?

The conversion factor between the knot and the mile per hour is fixed by definition. The figure above is rounded for readability; the converter carries full precision.

Convert other values

Full knots to miles per hour converter · All speed converters