Convert Feet Per Second (ft/s) to Kilometers Per Hour (km/h)

1 feet per second equals 1.09728 kilometers per hour.

Formula: km/h = ft/s × 1.09728

Feet Per Second to Kilometer Per Hour Converter

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How to Convert Feet Per Second to Kilometer Per Hour

1 feet per second = 1.09728 kilometers per hour

Kilometer Per Hour = Feet Per Second × 1.09728

Example: 1 ft/s × 1.09728 = 1.09728 km/h

Reverse Conversion

To convert kilometers per hour back to feet per second:

  • Remember, 1 kilometer per hour equals 0.911344 feet per second.
  • To convert 1.09728 km/h to ft/s, multiply 1.09728 x 0.911344, resulting in 1 ft/s.

Common Feet Per Second to Kilometer Per Hour Conversions

Feet Per Second to Kilometer Per Hour (Part 1)
Feet Per Second Kilometer Per Hour Actions
1 feet per second 1.09728 kilometers per hour
10 feet per second 10.9728 kilometers per hour
Feet Per Second to Kilometer Per Hour (Part 2)
Feet Per Second Kilometer Per Hour Actions
100 feet per second 109.728 kilometers per hour
1000 feet per second 1097.28 kilometers per hour

Feet per second to kilometers per hour Conversion Table

Reference table with common feet per second to kilometers per hour conversions. All values calculated with high precision.

Feet Per Second to Kilometers Per Hour Table
0.0001 to 12

Feet per second Kilometers per hour Actions
0.0001 ft/s 0.000109728 km/h
0.00025 ft/s 0.00027432 km/h
0.0005 ft/s 0.00054864 km/h
0.001 ft/s 0.00109728 km/h
0.0025 ft/s 0.0027432 km/h
0.005 ft/s 0.0054864 km/h
0.01 ft/s 0.0109728 km/h
0.025 ft/s 0.027432 km/h
0.05 ft/s 0.054864 km/h
0.1 ft/s 0.109728 km/h
14 ft/s 0.27432 km/h
12 ft/s 0.54864 km/h

Feet Per Second to Kilometers Per Hour Table
1 to 100000

Feet per second Kilometers per hour Actions
1 ft/s 1.09728 km/h
2 12 ft/s 2.7432 km/h
5 ft/s 5.4864 km/h
10 ft/s 10.9728 km/h
25 ft/s 27.432 km/h
50 ft/s 54.864 km/h
100 ft/s 109.728 km/h
250 ft/s 274.32 km/h
500 ft/s 548.64 km/h
1000 ft/s 1097.28 km/h
2500 ft/s 2743.2 km/h
5000 ft/s 5486.4 km/h
10000 ft/s 10972.8 km/h
25000 ft/s 27432 km/h
50000 ft/s 54864 km/h
100000 ft/s 109728 km/h

Kilometers Per Hour to Feet Per Second Table
0.001 to 5

Kilometers per hour Feet per second Actions
0.001 km/h 0.000911344 ft/s
0.0025 km/h 0.00227836 ft/s
0.005 km/h 0.00455672 ft/s
0.01 km/h 0.00911344 ft/s
0.025 km/h 0.0227836 ft/s
0.05 km/h 0.0455672 ft/s
0.1 km/h 0.0911344 ft/s
14 km/h 0.227836 ft/s
12 km/h 0.455672 ft/s
1 km/h 0.911344 ft/s
2 12 km/h 2.27836 ft/s
5 km/h 4.55672 ft/s

Kilometers Per Hour to Feet Per Second Table
10 to 1000000

Kilometers per hour Feet per second Actions
10 km/h 9.11344 ft/s
25 km/h 22.7836 ft/s
50 km/h 45.5672 ft/s
100 km/h 91.1344 ft/s
250 km/h 227.836 ft/s
500 km/h 455.672 ft/s
1000 km/h 911.344 ft/s
2500 km/h 2278.36 ft/s
5000 km/h 4556.72 ft/s
10000 km/h 9113.44 ft/s
25000 km/h 22783.6 ft/s
50000 km/h 45567.2 ft/s
100000 km/h 91134.4 ft/s
250000 km/h 227836 ft/s
500000 km/h 455672 ft/s
1000000 km/h 911344 ft/s

About the Feet Per Second

Facts & Uses

  • 1 ft/s = 0.3048 m/s exactly. Used in US engineering, ballistics, and some sports analytics where small instantaneous velocities matter.
  • Standard for projectile velocities: rifle bullets 2000-3000 ft/s, handgun rounds 800-1500 ft/s, arrow speeds 250-350 ft/s.
  • Used in baseball pitch tracking, wind speed measurements in some US engineering contexts, and fluid flow calculations.
  • Convenient because of the simple ratio: 1 mph ≈ 1.467 ft/s, so 60 mph = 88 ft/s exactly — the highway speed-to-stopping-distance reference.

Curiosities

  • 60 mph = 88 ft/s exactly because 1 mph = 5280/3600 ft/s = 22/15 ft/s, and 60 × 22/15 = 88. A useful mental conversion for US drivers.
  • The speed of sound in dry air at 20 °C is about 1125 ft/s — used in lightning distance estimation (every 5 seconds = 1 mile).
  • A Major League Baseball fastball at 100 mph reaches the catcher's mitt at 146 ft/s — leaving the batter only ~0.4 seconds to react to the pitch.
  • Approximate equivalents: 1 ft/s ≈ 0.3048 m/s ≈ 1.097 km/h ≈ 0.682 mph.

Sources

About the Kilometer Per Hour

Facts & Uses

  • 1 km/h = 1000 m / 3600 s = 5/18 m/s exactly. The dominant speed unit for road vehicles in metric countries (everywhere except the US, UK, and a few others).
  • Standard for speed limits worldwide: typical urban 50 km/h, rural 80-90 km/h, highway 100-130 km/h.
  • Used in weather forecasts (wind speed in km/h), cycling (speedometers), and international aviation ground speed reporting in some contexts.
  • Reference: walking ≈ 5 km/h, cycling 15-25 km/h, marathon pace ≈ 12-20 km/h, highway speeds 100-130 km/h.

Curiosities

  • The UK uses mph for road signs despite being metric for almost everything else — one of the very few exceptions in modern UK metrication.
  • Highest road speed limits: Germany Autobahn (no general limit), Poland 140 km/h, several Gulf states 140-160 km/h. Most of Europe caps at 130 km/h.
  • The fastest production car (Bugatti Chiron Super Sport) tops out at about 490 km/h; the land speed record (ThrustSSC, 1997) exceeds 1227 km/h — supersonic.
  • Approximate equivalents: 100 km/h ≈ 62.137 mph ≈ 27.78 m/s ≈ 53.996 knots.

Sources

Frequently Asked Questions

How many kilometers per hour are in one feet per second?

One feet per second equals 1.09728 kilometers per hour. To convert, multiply the feet per second value by 1.09728. For the reverse, divide the kilometer per hour value by 1.09728 (or multiply by 0.911344).

What is 11000 feet per second in kilometers per hour?

11000 feet per second = 12070 kilometers per hour. This is one of the most commonly searched conversions for this pair.

How precise is the feet per second-to-kilometer per hour conversion?

The factor 1.09728 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Kilometer Per Hour to Feet Per Second

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Conversion factors verified against NIST, BIPM, ISO 80000-3 Derived from SI base units (m/s, BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.

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