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km/h to Feet per Second Converter

Convert kilometers per hour to feet per second — divide by 1.09728. Results update as you type; exact factors shown.

One kilometer per hour is 0.9113 feet per second — see the exact factor, not a rounded rule of thumb.

Direction
Results update as you type
Results
1 km/h in feet per second
0.9113 ft/s
Conversion factor
Reverse conversion
In meter per second (base unit)
Reviewed September 2026. Exact conversion factors from the BIPM SI Brochure and NIST SP 811; The US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
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About speed conversion

How the km/h to feet per second converter works

Speeds convert through meters per second. 1 km/h is 1000/3600 m/s; 1 mph is 1609.344/3600 m/s; a knot is one nautical mile (1,852 m) per hour. Mach is shown against the standard sea-level speed of sound of 340.29 m/s and varies with altitude and temperature.

The US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.

Common speed conversions

FromToUnits
1 km/h0.9113 ft/skilometer per hour to feet per second
5 km/h4.5567 ft/skilometer per hour to feet per second
10 km/h9.1134 ft/skilometer per hour to feet per second
20 km/h18.2269 ft/skilometer per hour to feet per second
30 km/h27.3403 ft/skilometer per hour to feet per second
40 km/h36.4538 ft/skilometer per hour to feet per second
50 km/h45.5672 ft/skilometer per hour to feet per second
60 km/h54.6807 ft/skilometer per hour to feet per second
80 km/h72.9076 ft/skilometer per hour to feet per second
100 km/h91.1344 ft/skilometer per hour to feet per second
110 km/h100.2479 ft/skilometer per hour to feet per second
130 km/h118.4748 ft/skilometer per hour to feet per second

Units in this converter and their exact factors

UnitSymbolOne unit in meter per seconds
meter per secondm/s1 meter per second
kilometer per hourkm/h0.2777777778 meter per second
mile per hourmph0.44704 meter per second
knotkn0.5144444444 meter per second
foot per secondft/s0.3048 meter per second
Mach (sea level, 15 °C)Ma340.29 meter per second

Frequently asked questions about speed conversion

How many feet per second is 1 km/h?

0.9113 ft/s.

What is 100 km/h in ft/s?

91.13 ft/s.

Where is ft/s used?

US ballistics, sports measurement and some engineering.

What is 60 km/h in ft/s?

54.68 ft/s.

How does that compare to mph?

60 km/h is 37.3 mph, and mph times 1.467 gives ft/s.

Where these figures come from

Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.