Knot to Inch/Second Converter

Speed Converter

18 units available

Decimals:

From

To

20.253718

1 kn = 20.253718 in/s

Formula:

in/s = kn × 20.2537182677

With your value: 1 kn = 20.25371827 in/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 Inch/Second conversions

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

Knot to Inch/Second Conversion Table

Knot (kn)	Inch/Second (in/s)
0.5	10.126859
1	20.253718
2	40.507437
5	101.268591
10	202.537183
15	303.805774
20	405.074365
25	506.342957
50	1,012.685913
100	2,025.371827
250	5,063.429567
500	10,126.859134
1000	20,253.718268

Inch/Second to Knot Conversion Table

Inch/Second (in/s)	Knot (kn)
0.5	0.024687
1	0.049374
2	0.098747
5	0.246868
10	0.493737
15	0.740605
20	0.987473
25	1.234341
50	2.468683
100	4.937365
250	12.343413
500	24.686825
1000	49.37365

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

Inch/Second (in/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 Inch/Second

To convert from Knot (kn) to Inch/Second (in/s), multiply the value by 20.2537182677.

Formula: in/s = kn × 20.2537182677

Reverse: kn = in/s × 0.0493736502

Step-by-Step Example

Start with your value in Knot. For example: 5 kn
Multiply by the conversion factor: 5 x 20.2537182677
The result is: 101.268591 in/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 Inch/Second

The inch/second (in/s) is a unit of speed and velocity. One inch/second equals 0.0254 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 Inch/Second are in 1 Knot?

There are exactly 20.2537182677 Inch/Second in 1 Knot. This means the conversion factor from Knot to Inch/Second is 20.2537182677.

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

The formula to convert Knot to Inch/Second is: in/s = kn × 20.2537182677. For example, to convert 10 Knot to Inch/Second, you would multiply 10 by 20.2537182677.

What is a Knot?