mph to Knot Converter

1 mph = 0.86897699 Knots. To convert Miles per Hour to Knots, multiply by 0.86897699.

Result updates as you type
Recent: 1 mph = 0.86897699 Knot

Formula

To convert Miles per Hour to Knots, multiply the value by 0.86897699. One mph equals 0.86897699 Knots.

kn = mph × 0.86897699

For a quick mental estimate, multiply Miles per Hour by about 0.9 — the exact factor is 0.86897699.

Worked examples

  • 1 mph = 0.86897699 Knots
  • 5 Miles per Hour = 4.3449 Knots
  • 10 Miles per Hour = 8.6898 Knots
  • 100 Miles per Hour = 86.8977 Knots

Miles per Hour to Knots table

Miles per Hour (mph) Knots (kn)
1 0.86897699
2 1.738
3 2.6069
4 3.4759
5 4.3449
10 8.6898
25 21.7244
50 43.4488
100 86.8977
250 217.2442
500 434.4885
1000 868.977

About mph and Knot

Both the mph (mph) and the Knot (kn) measure speed. One mph is equal to 0.86897699 Knots, so you can convert any measurement by multiplying by 0.86897699. The calculator above updates instantly, and the reference table lists common mph-to-Knot values for quick lookups.

Unit definitions

mph (mph)
The mph (mph) is a unit of speed equal to 0.44704 Meters per Second.
Knot (kn)
The Knot (kn) is a unit of speed equal to 0.514444 Meters per Second.

Frequently asked questions

How do you convert Miles per Hour to Knots?
Multiply the number of Miles per Hour by 0.86897699. For example, 1 mph × 0.86897699 = 0.86897699 Knots.
How many Knots are in a mph?
There are 0.86897699 Knots in one mph.
What is 10 Miles per Hour in Knots?
10 Miles per Hour is equal to 8.6898 Knots.
How do you convert Knots back to Miles per Hour?
Multiply the number of Knots by 1.1508 to get Miles per Hour. One Knot equals 1.1508 Miles per Hour.