Knot to Mile/Second Converter

Speed Converter

18 units available

Decimals:

From

To

0.00032

1 kn = 0.00032 mi/s

Formula:

mi/s = kn × 0.000319661

With your value: 1 kn = 0.00031966 mi/s

How big is that?

Everyday references on a logarithmic scale, all expressed in knot so you can sanity-check the result.

Your value1.00 kn

Walking pace (2.7× your value)2.72 kn

Cycling (11× your value)10.7 kn

Urban speed limit (50 km/h) (27× your value)27.0 kn

Cheetah sprint (56× your value)56.4 kn

Motorway (110 km/h) (59× your value)59.5 kn

Other Knot to Mile/Second conversions

2 kn to mi/s 3 kn to mi/s 4 kn to mi/s 5 kn to mi/s 6 kn to mi/s 7 kn to mi/s 8 kn to mi/s

Knot to Mile/Second Conversion Table

Knot (kn)	Mile/Second (mi/s)
0.5	0.00016
1	0.00032
2	0.000639
5	0.001598
10	0.003197
15	0.004795
20	0.006393
25	0.007992
50	0.015983
100	0.031966
250	0.079915
500	0.15983
1000	0.319661

Mile/Second to Knot Conversion Table

Mile/Second (mi/s)	Knot (kn)
0.5	1,564.157237
1	3,128.314474
2	6,256.628947
5	15,641.572368
10	31,283.144735
15	46,924.717103
20	62,566.289471
25	78,207.861839
50	156,415.723677
100	312,831.447354
250	782,078.618386
500	1,564,157.236772
1000	3,128,314.473545

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Knot (kn)

Speed

Exact conversion

Derived quantity: a defined length divided by a defined time interval.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Mile/Second (mi/s)

Speed

Exact conversion

Derived quantity: a defined length divided by a defined time interval.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Knot to Mile/Second

To convert from Knot (kn) to Mile/Second (mi/s), multiply the value by 0.000319661.

Formula: mi/s = kn × 0.000319661

Reverse: kn = mi/s × 3,128.314473545

Step-by-Step Example

Start with your value in Knot. For example: 5 kn
Multiply by the conversion factor: 5 x 0.000319661
The result is: 0.001598 mi/s

About Knot

The knot equals one nautical mile per hour and is used in maritime and aviation contexts.

Fun Fact: The knot gets its name from the practice of using a knotted rope to measure ship speed.

Common uses: navigation, aviation, sailing.

About Mile/Second

The mile/second (mi/s) is a unit of speed and velocity. One mile/second equals 1609.344 metre per seconds. UnitConvertLab converts it against every other speed unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: speed calculations, engineering and science, education.

Frequently Asked Questions

How many Mile/Second are in 1 Knot?

There are exactly 0.000319661 Mile/Second in 1 Knot. This means the conversion factor from Knot to Mile/Second is 0.000319661.

What is the formula to convert Knot to Mile/Second?

The formula to convert Knot to Mile/Second is: mi/s = kn × 0.000319661. For example, to convert 10 Knot to Mile/Second, you would multiply 10 by 0.000319661.

What is a Knot?