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55 knots to miles per hour

55 knots = 63.29287 miles per hour

Rounded to a practical precision: 63.3 mph.

How the calculation works

One knot is 1.15078 miles per hour, so:

55 kn × 1.15078 = 63.29287 mph

Reversing it, 63.29287 miles per hour ÷ 1.15078 returns 55 knots.

Nearby values

KnotsMiles Per Hour
51 kn58.68975 mph
52 kn59.84053 mph
53 kn60.99131 mph
54 kn62.14209 mph
55 kn63.29287 mph
56 kn64.44365 mph
57 kn65.59443 mph
58 kn66.74521 mph
59 kn67.89599 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 55 knots?

55 knots is 63.29287 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