Convert Foot per Second to Centimeter per Second (ft/s → cm/s)
Feet per second is the standard ballistics unit for projectile speeds and American sports analytics.
Foot per Second to Centimeter per Second Conversion Table
10 common values| Foot per Second | Centimeter per Second |
|---|---|
| 1 ft/s | 30.48 cm/s |
| 5 ft/s | 152.4 cm/s |
| 10 ft/s | 304.8 cm/s |
| 25 ft/s | 762 cm/s |
| 50 ft/s | 1,524 cm/s |
| 100 ft/s | 3,048 cm/s |
| 150 ft/s | 4,572 cm/s |
| 200 ft/s | 6,096 cm/s |
| 300 ft/s | 9,144 cm/s |
| 500 ft/s | 15,240 cm/s |
How to Convert Foot per Second to Centimeter per Second Manually
Step by StepConverting feet per second to centimeters per second is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.
- 1Take your value in feet per secondStart with the number of feet per second (ft/s) you want to convert.
- 2Multiply by 30.48The conversion factor from ft/s to cm/s is 30.48. Multiply your value by this number.
- 3Read the result in centimeters per secondThe result is your value in centimeters per second (cm/s).
Formula
Multiply the value in feet per second by 30.48. For the reverse direction, multiply by 0.032808.
cm/s = ft/s × 30.48ft/s = cm/s × 0.032808Tips
Use these in everyday conversions- 1 ft/s = 0.3048 m/s = 1.097 km/h = 0.682 mph.
- Multiplying ft/s by 0.682 gives mph.
- US engineering often uses ft/s; metric countries use m/s.
Common Mistakes
Avoid these- Confusing ft/s with fps (frames per second in video/gaming).
- Mixing ft/s with mph without conversion.
- Using ft/s instead of m/s in international scientific contexts.
About Foot per Second and Centimeter per Second
What is the Foot per Second?
Feet per second is the standard ballistics unit for projectile speeds, American sports analytics, and engineering. Bullet velocities are universally given in fps: a .22 LR bullet flies at about 1,200 fps, a 9 mm pistol round at 1,150 fps, and a high-velocity rifle round at 3,000 fps. American football and baseball analytics increasingly use fps for measuring throwing speed, ball exit velocity, and player movement. Engineering disciplines that retain US customary units (HVAC, civil engineering) often specify air or water flow speeds in fps. The unit relates to mph (1.467 fps = 1 mph), m/s (1 fps ≈ 0.305 m/s), and the knot (1 fps ≈ 0.592 kn). Outside ballistics and US sports, m/s and km/h dominate — but in their domains, fps remains entrenched in American technical practice.
- US ballistics and firearms
- US civil-engineering flow rates
- Older US physics and engineering texts
9mm bullet muzzle velocity: ~1150 ft/s. .308 rifle: ~2700 ft/s. Free fall terminal velocity: ~195 ft/s.
What is the Centimeter per Second?
Centimeters per second is the natural unit for slow, sustained motions: ocean currents, biological growth rates, sedimentation in geology, and laboratory fluid dynamics. The Gulf Stream flows at about 90–250 cm/s, glaciers creep at 1–10 cm/s on average, and fingernails grow at roughly 0.0035 cm/s. Centimeters per second appears in oceanography, hydrology, soil science, and biological motion studies. It relates to m/s (100 cm/s = 1 m/s), km/h (1 cm/s = 0.036 km/h), and mph (1 cm/s ≈ 0.0224 mph). The CGS (centimeter-gram-second) unit system used cm/s as its base speed, which influenced older physics literature, particularly in astrophysics and fluid mechanics.
- Ocean current speeds
- Biological motion (cells, small organisms)
- Laboratory fluid flow rates
Gulf Stream: 100–200 cm/s. Amoeba: 1 mm/s = 0.1 cm/s. Sediment settling: 0.01–1 cm/s.