Miles Per Hour to Knots
1 mile / hour = 0.868977 knots (kn)
Convert miles per hour to knots instantly. 1 mile / hour = 0.868977 knots. Free, accurate, with conversion table and formula.
Mile / Hour (mph)
Knot (kn)
| Unit | 1 mph equals |
|---|---|
| Meter / Second (m/s) | 0.44704 |
| Kilometer / Hour (km/h) | 1.60934 |
| Mile / Hour (mph) | 1 |
| Foot / Second (ft/s) | 1.46667 |
| Knot (kn) | 0.868977 |
| Mach (Ma) | 0.00130332 |
How to convert miles per hour to knots
- 1Take your value in miles per hour (mph).
- 2Multiply by 0.868977.
- 3The result is your value in knots (kn).
Miles Per Hour to Knots conversion table
| Miles Per Hour (mph) | Knots (kn) |
|---|---|
| 1 | 0.868977 |
| 2 | 1.73795 |
| 5 | 4.34488 |
| 10 | 8.68977 |
| 25 | 21.7244 |
| 50 | 43.4488 |
| 100 | 86.8977 |
| 250 | 217.244 |
| 500 | 434.488 |
| 1,000 | 868.977 |
Frequently asked
How many knots are in a mile / hour?
1 mile / hour equals 0.868977 knots (kn).
How do I convert miles per hour to knots?
Multiply the number of miles per hour by 0.868977 to get knots.
What is 10 miles per hour in knots?
10 mph equals 8.69 kn.
What is 100 miles per hour in knots?
100 mph equals 86.9 kn.
How do I convert knots back to miles per hour?
Multiply knots by 1.15078 (the reciprocal) or use the swap button above.
Where you'll actually use this
Speed measures distance covered per unit of time. Common units include km/h, mph, m/s, knots, and the speed of light (c).
- Driving
Speed limits use km/h in most countries; mph in the US, UK, and a few others.
- Aviation & maritime
Planes and ships report speed in knots (nautical miles per hour) — 1 kn ≈ 1.852 km/h.
- Running & cycling
Pace apps switch between min/km and min/mi; speed in km/h vs mph depending on locale.
Common mistakes to avoid
- kph isn't a real unit
The correct abbreviation is km/h. 'kph' is informal and not used in technical writing.
- Knots already includes 'per hour'
Saying 'knots per hour' is redundant — it's just 'knots'.
Did you know?
Mach 1 isn't a fixed speed — it depends on temperature. At sea level it's roughly 1,225 km/h, falling to ~1,062 km/h at altitude.
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