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Knot to Mile per hour Converter

1 knot is about 1.150779448 miles per hour. Convert knots (kn) to miles per hour (mph) below: type a value and the result updates as you type.

kn to mph calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

Knot to Mile per hour conversion

1 kn ≈ 1.150779448 mphone knot in miles per hour

1 mph ≈ 0.8689762419 knone mile per hour in knots

Knot (kn): One nautical mile per hour: exactly 1852/3600 meters per second.

Mile per hour (mph): One international mile per hour: exactly 0.44704 meters per second.

Source:Knot: NIST Special Publication 811 (2008), Appendix B.8; Mile per hour: International yard and pound agreement (1959)

How to convert knots to miles per hour

To convert knots to miles per hour, multiply the number of knots by about 1.150779448.

Formula

mph = kn × 1.150779448

The factor is rounded here. The calculator uses the exact value.

Examples

  • 5 kn = 5 × 1.150779448 ≈ 5.75389724 mph
  • 25 kn = 25 × 1.150779448 ≈ 28.7694862 mph
  • 100 kn = 100 × 1.150779448 ≈ 115.0779448 mph

Knot to Mile per hour conversion table

Knot to Mile per hour
Knot (kn)Mile per hour (mph)
0.1 kn0.1150779448 mph
0.5 kn0.575389724 mph
1 kn1.150779448 mph
2 kn2.301558896 mph
3 kn3.452338344 mph
5 kn5.75389724 mph
10 kn11.50779448 mph
20 kn23.01558896 mph
25 kn28.7694862 mph
50 kn57.5389724 mph
100 kn115.0779448 mph
250 kn287.694862 mph
500 kn575.389724 mph
1000 kn1150.779448 mph

Values rounded to 10 significant digits where needed.

Frequently asked questions

How many miles per hour are in one knot?
One knot is about 1.150779448 miles per hour.
How do I convert miles per hour to knots?
To convert miles per hour to knots, multiply the number of miles per hour by about 0.8689762419. The formula is kn = mph × 0.8689762419.
Is this conversion exact?
Yes. Both units have exact definitions, but the factor has more decimal places than can be shown, so displayed results are rounded. The calculator works with 50 significant digits before rounding.
Which is larger, a knot or a mile per hour?
A knot is about 1.150779448 times larger than a mile per hour. In other words, a mile per hour is about 0.8689762419 of a knot.