Mile per Hour to Knot Converter
Convert Miles per Hour to Knots instantly
Knot
Conversion Formula
Knot = Mile per Hour × 0.868977Where:
- mph = Mile per Hour
- kn = Knot
About Mile per Hour
The mile per hour (mph) is a unit of speed in the imperial system of measurement.
About Knot
The knot (kn) is a unit of speed in the nautical system of measurement.
How to Convert Mile per Hour to Knot
Convert miles per hour to knots instantly
Quick Reference:
- 1 mph = 0.868977 kn
- 1 kn = 1.150778 mph
Common Mile per Hour to Knot Conversions
= 0.87 kn
= 4.34 kn
= 8.69 kn
= 21.72 kn
= 43.45 kn
= 86.90 kn
Conversion Reference Table
| Mile per Hour (mph) | Knot (kn) |
|---|---|
| 1 | 0.869 |
| 2 | 1.738 |
| 3 | 2.6069 |
| 4 | 3.4759 |
| 5 | 4.3449 |
| 10 | 8.6898 |
| 15 | 13.0347 |
| 20 | 17.3795 |
| 25 | 21.7244 |
| 50 | 43.4488 |
| 75 | 65.1733 |
| 100 | 86.8977 |
| 250 | 217.2442 |
| 500 | 434.4885 |
| 1,000 | 868.977 |
Quick reference table showing common miles per hour to knots conversions.
Real-World Speed Conversions
Driving and Road Travel
Speed limits vary by country: US highways (55-80 mph), European motorways (120-130 km/h), urban areas (25-50 km/h or 15-30 mph).
Running and Athletics
Track running speeds: sprinting (15-28 mph), distance running (10-15 mph), jogging (5-8 mph), walking (3-4 mph). Marathon pace is about 11-13 mph for elites.
Aviation and Flight
Commercial aircraft cruise at 460-575 mph (400-500 knots). Small planes fly at 100-200 mph. Helicopters typically cruise at 100-150 mph.
Weather and Wind Speed
Wind speeds: calm (0-5 mph), breeze (8-18 mph), gale (39-54 mph), hurricane force (74+ mph or 119+ km/h). Weather reports use mph, km/h, or knots.
Cycling and Biking
Recreational cycling: 10-15 mph. Road racing: 25-28 mph average. Tour de France averages 25 mph (40 km/h) over mountain stages.
Maritime and Boats
Ships use knots for speed. Cargo ships: 15-25 knots. Cruise ships: 20-24 knots. Sailboats: 4-8 knots. Ferries and speedboats: 30-50+ knots.