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ft/s
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What is a foot per second?

Used in US engineering, ballistics and older physics texts

Definition

Feet per second (ft/s) is used in some US engineering, ballistics (bullet velocity) and older US physics textbooks. Typical handgun muzzle velocity: 1000–1400 ft/s. Rifle muzzle velocity: 2500–3500 ft/s.

Common uses

  • US ballistics and firearms
  • US civil-engineering flow rates
  • Older US physics and engineering texts

🌍 Real-world scale

9mm bullet muzzle velocity: ~1150 ft/s. .308 rifle: ~2700 ft/s. Free fall terminal velocity: ~195 ft/s.

Convert from feet per second

9 conversions
Foot per Second to Kilometer per Hour1 ft/s = 1.09728 km/hFoot per Second to Meter per Second1 ft/s = 0.3048 m/sFoot per Second to Mile per Hour1 ft/s = 0.6818 mphFoot per Second to Knot1 ft/s = 0.5925 knFoot per Second to Mach1 ft/s = 0.0008957 MaFoot per Second to Centimeter per Second1 ft/s = 30.48 cm/sFoot per Second to Yard per Minute1 ft/s = 20 yd/minFoot per Second to Inch per Minute1 ft/s = 720.567 in/minFoot per Second to Beaufort Scale1 ft/s = 0.3048 Bft

Convert to feet per second

9 conversions
Kilometer per Hour to Foot per Second1 km/h = 0.9113 ft/sMeter per Second to Foot per Second1 m/s = 3.28084 ft/sMile per Hour to Foot per Second1 mph = 1.46667 ft/sKnot to Foot per Second1 kn = 1.68781 ft/sMach to Foot per Second1 Ma = 1,116.44 ft/sCentimeter per Second to Foot per Second1 cm/s = 0.03281 ft/sYard per Minute to Foot per Second1 yd/min = 0.05 ft/sInch per Minute to Foot per Second1 in/min = 0.001388 ft/sBeaufort Scale to Foot per Second1 Bft = 3.28084 ft/s

Tips

  • 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

  • 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.

FAQ about the foot per second

What is a foot per second?
Feet per second (ft/s) is used in some US engineering, ballistics (bullet velocity) and older US physics textbooks. Typical handgun muzzle velocity: 1000–1400 ft/s. Rifle muzzle velocity: 2500–3500 ft/s.
Where is the foot per second used?
The foot per second is commonly used for: US ballistics and firearms; US civil-engineering flow rates; Older US physics and engineering texts.
What is an example of a foot per second in real life?
9mm bullet muzzle velocity: ~1150 ft/s. .308 rifle: ~2700 ft/s. Free fall terminal velocity: ~195 ft/s.
What category does the foot per second belong to?
The foot per second is a unit of speed, part of the 10-unit speed category on UnitConv.
How accurate are foot per second conversions?
All conversion factors follow NIST and BIPM international standards to 8 significant figures — the highest practical accuracy.
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