ft/s to m/s Converter

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Convert feet per second to meters per second using the exact factor 1 ft = 0.3048 m, so 1 ft/s = 0.3048 m/s. Useful for translating US ballistics, fluid-mechanics or HVAC airflow figures into the SI unit. Anchors: 100 ft/s = 30.48 m/s, 1000 ft/s = 304.80 m/s, 1125 ft/s ≈ 343 m/s (speed of sound at sea level). Browser-local.

Foot per second (ft/s)
Meter per second (m/s)

Foot per second (ft/s) → Meter per second (m/s)

Quick reference table

Foot per second (ft/s)Meter per second (m/s)
10 ft/s3.048 m/s
25 ft/s7.62 m/s
50 ft/s15.24 m/s
60 ft/s18.288 m/s
80 ft/s24.384 m/s
100 ft/s30.48 m/s
120 ft/s36.576 m/s
150 ft/s45.72 m/s
200 ft/s60.96 m/s

Glossary

Foot per second (ft/s)

A foot per second is an imperial speed unit used in US engineering — projectile ballistics, fluid mechanics and HVAC airflow specifications. 1 ft/s = 0.3048 m/s = 1.0973 km/h = 0.6818 mph. The speed of sound at sea level is about 1,125 ft/s; a fast pitcher's fastball reaches about 145 ft/s.

Meter per second (m/s)

The meter per second is the SI derived unit of speed, defined as the distance of one meter travelled in one second. It is the standard unit in physics and engineering. Useful conversions: 1 m/s = 3.6 km/h = 2.2369 mph = 1.9438 knots. Wind speeds, projectile velocities and free-fall figures are typically reported in m/s in scientific contexts.

Metric / SI speed

In the metric system, speed is reported in meters per second (scientific) or kilometers per hour (everyday). The relation is exact: 1 m/s = 3.6 km/h. Most countries use km/h on road signs and speedometers; m/s appears in physics, engineering, weather data and athletics where fine-resolution timing matters.

Imperial / US Customary speed

In the United States, the United Kingdom and a few other countries, road speeds are reported in miles per hour (mph). US engineering also uses feet per second (ft/s). 1 mph = 1.6093 km/h = 0.4470 m/s. Maritime and aviation worldwide use knots (1 knot = 1.852 km/h), independent of the metric/imperial divide.

Related tools

m/s to ft/s
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ft/s to mph
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mph to m/s
Convert mph to m/s — 1 mph = 0.44704 m/s
Speed Converter
Convert speed — m/s, km/h, mph, knots, ft/s, mach