How many kilometers per hour are in 1 foot per second?

1 foot per second equals 1.09728 km/h.

How do I convert kilometers per hour back to feet per second?

Use the reverse converter: 1 kilometer per hour equals 0.911344 ft/s.

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert feet per second to kilometers per hour, multiply the value by 1.09728.

km/h = ft/s × 1.09728

140 ft/s × 1.09728 = 153.62 km/h

Foot Per Second (ft/s): Used in US engineering and ballistics. Exactly 0.3048 metres per second.
Kilometer Per Hour (km/h): Used for road speed limits and vehicle speeds in most countries.

How do I convert feet per second to kilometers per hour?: To convert feet per second to kilometers per hour, multiply the value by 1.09728.
How many kilometers per hour are in 1 foot per second?: 1 foot per second equals 1.09728 km/h.
How many kilometers per hour are in 10 feet per second?: 10 ft/s equals 10.9728 km/h.
How do I convert kilometers per hour back to feet per second?: Use the reverse converter: 1 kilometer per hour equals 0.911344 ft/s.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.