Foot per Second to Kilometer per Minute

Foot per second measures the number of feet traveled in one second. Commonly used in engineering, ballistics, and some sports in the United States.

1 ft/s = 0.3048 m/s exactly (by definition of the international foot). 1 ft/s = 0.6818 mph.

To m/s: × 0.3048. To km/h: × 1.097. To mph: × 0.682. To knots: × 0.592.

Bullet velocities (handgun: 800–1,200 ft/s; rifle: 2,500–4,000 ft/s), waterfall flow rates, industrial conveyor speeds, and skydiving terminal velocity (120 ft/s).

Speed of sound: 1,125 ft/s at sea level. Free fall: 32 ft/s² acceleration. Skydiver terminal velocity: 120 ft/s. Baseball pitch: 132 ft/s (90 mph).

Confusing ft/s with mph — 1 ft/s is only 0.68 mph, not 1 mph. Also, mixing up ft/s and ft/min in HVAC calculations.

1 ft/s ≈ 0.3 m/s or ≈ 1.1 km/h. Quick check: 100 ft/s ≈ 70 mph. Multiply ft/s by 0.68 for approximate mph.

Kilometer per minute measures how many kilometers are traveled in one minute. It's a less common but useful speed unit for high-speed contexts.

1 km/min = 60 km/h = 16.667 m/s. There are 60 minutes in an hour.

To km/h: × 60. To m/s: × 16.667. To mph: × 37.28.

Describing meteor speeds, high-speed rail in casual conversation, or military projectile velocities.

Earth's orbital speed: 1,800 km/min. Escape velocity: 40 km/min. Fastest manned aircraft (X-15): 6.7 km/min.

Confusing with km/h — 1 km/min is 60 times faster than 1 km/h, not the same.

Easy conversion: km/min × 60 = km/h. Example: 2 km/min = 120 km/h. Useful for mental math with fast speeds.