Convert 15 Kilometer/Hour (km/h) to Foot/Second (ft/s).

15 Kilometer/Hour equals 13.670166 Foot/Second. Multiply 15 by 0.9113444153.

15 Kilometer/Hour = 13.670166 Foot/Second

Worked example: converting Kilometer/Hour to Foot/Second

Step 1 — start with the formula. ft/s = km/h × 0.9113444153
Step 2 — substitute your figure. 15 km/h × 0.9113444153
Step 3 — read the result. 15 km/h = 13.670166 ft/s
Step 4 — check it in reverse. km/h = ft/s × 1.09728 returns 15 km/h, which matches the figure you started with.

Speed Converter

18 units available

Decimals:

From

To

13.670166

15 km/h = 13.670166 ft/s

Formula:

ft/s = km/h × 0.9113444153

With your value: 15 km/h = 13.67016623 ft/s

How big is that?

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

Walking pace (1/3.0 your value)5.04 km/h

Your value15.0 km/h

Cycling (1.3× your value)19.8 km/h

Urban speed limit (50 km/h) (3.3× your value)50.0 km/h

Cheetah sprint (7.0× your value)104 km/h

Motorway (110 km/h) (7.3× your value)110 km/h

Other Kilometer/Hour to Foot/Second conversions

11 km/h to ft/s 12 km/h to ft/s 13 km/h to ft/s 14 km/h to ft/s 16 km/h to ft/s 18 km/h to ft/s 20 km/h to ft/s Full Kilometer/Hour to Foot/Second converter

Kilometer/Hour to Foot/Second Conversion Table

Kilometer/Hour (km/h)	Foot/Second (ft/s)
0.5	0.455672
1	0.911344
2	1.822689
5	4.556722
10	9.113444
15	13.670166
20	18.226888
25	22.78361
50	45.567221
100	91.134442
250	227.836104
500	455.672208
1000	911.344415

Foot/Second to Kilometer/Hour Conversion Table

Foot/Second (ft/s)	Kilometer/Hour (km/h)
0.5	0.54864
1	1.09728
2	2.19456
5	5.4864
10	10.9728
15	16.4592
20	21.9456
25	27.432
50	54.864
100	109.728
250	274.32
500	548.64
1000	1,097.28

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.

Kilometer/Hour (km/h)

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

Foot/Second (ft/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 Kilometer/Hour to Foot/Second

To convert from Kilometer/Hour (km/h) to Foot/Second (ft/s), multiply the value by 0.9113444153.

Formula: ft/s = km/h × 0.9113444153

Reverse: km/h = ft/s × 1.09728

Step-by-Step Example

Start with your value in Kilometer/Hour. For example: 5 km/h
Multiply by the conversion factor: 5 x 0.9113444153
The result is: 4.556722 ft/s

About Kilometer/Hour

Kilometers per hour is the most widely used unit of speed for vehicles in most countries.

Common uses: speed limits, vehicle speed, weather.

About Foot/Second

The foot/second (ft/s) is a unit of speed and velocity. One foot/second equals 0.3048 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

What is 15 Kilometer/Hour in Foot/Second?

15 Kilometer/Hour equals 13.670166 Foot/Second.

How many Foot/Second are in 1 Kilometer/Hour?

There are exactly 0.9113444153 Foot/Second in 1 Kilometer/Hour. This means the conversion factor from Kilometer/Hour to Foot/Second is 0.9113444153.

What is the formula to convert Kilometer/Hour to Foot/Second?

The formula to convert Kilometer/Hour to Foot/Second is: ft/s = km/h × 0.9113444153. For example, to convert 10 Kilometer/Hour to Foot/Second, you would multiply 10 by 0.9113444153.

What is a Kilometer/Hour?