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km/h to Feet per Second Converter

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

One kilometre 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 metre per second (base unit)
Reviewed September 2026. Exact conversion factors from the BIPM SI Brochure and NIST SP 811; The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
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About speed conversion

How the km/h to feet per second converter works

Speeds convert through metres 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 UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.

Common speed conversions

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

Units in this converter and their exact factors

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