Knots to mph
Convert Knots to mph
"Knots to mph" Calculator
How to convert knots to miles per hour
Worked example: 30 knots ≈ 34.52 mph
30 knots × 1,852 ÷ 1,609.344 ≈ 34.52 mph
1,852 m in a nautical mile; 1,609.344 m in a mile
Rule: miles per hour = knots × 1,852 ÷ 1,609.344 ≈ knots × 1.15078 — 1 kt = 1 nautical mile per hour = 1,852 m/h; 1 mph = 1,609.344 m/h.
See Also
- Miles per Hour to Kilometers per Hour - Convert Miles per Hour to Kilometers per Hour
- Kilometers per Hour to Miles per Hour - Convert Kilometers per Hour to Miles per Hour
- M/S to KM/H - Convert M/S to KM/H
- KM/H to M/S - Convert KM/H to M/S
- Knots to Km/h - Convert Knots to Km/h
- Km/h to Knots - Convert Km/h to Knots
- Miles per Hour to Meters per Second - Convert Miles per Hour to Meters per Second
- Meters per Second to Miles per Hour - Convert Meters per Second to Miles per Hour
- mph to Knots - Convert mph to Knots
- Knots to m/s - Convert Knots to m/s
- m/s to Knots - Convert m/s to Knots
FAQ
How many miles per hour are in a knot?
1 knot ≈ 1.15078 mph: mph = knots × 1,852 ÷ 1,609.344 ≈ knots × 1.15078. For most inputs the division does not end, and the answer is rounded: 30 knots ≈ 34.52 mph; it comes out exact only for uncommon inputs such as 4.02336 knots = 4.63 mph.
Where do 1,852 and 1,609.344 come from?
A knot is one nautical mile per hour, and a mile per hour is one statute mile per hour. By the international definitions, 1 nautical mile = 1,852 m (1929) and 1 mile = 1,609.344 m (1959), so 1 knot = 1,852 m/h and 1 mph = 1,609.344 m/h.
Why is the number in mph bigger than in knots?
A nautical mile is longer than a statute mile: 1 nautical mile ≈ 1.15078 mi. So the same speed is a bigger number in mph: 10 knots ≈ 11.51 mph, and 1 mph ≈ 0.868976 knots.
Is a knot a distance?
No. A knot is a speed: one nautical mile per hour. The distance is the nautical mile.