# Kilometer per second conversions

speed conversions » kilometer per second conversionsThe kilometer per second conversion selector on this page selects the speed/velocity measurement unit to convert to starting from kilometers per second (km/s). To make a conversion starting from a unit of speed other than kilometer per second, simply click on the "Reset" button.

## What is kilometer per second?

The **kilometre per second** (or **kilometer per second**) is a unit of speed in the metric system of units equal to 1,000 meters per second (1 km/s = 1,000 m/s), the derived unit of speed in the International System of Units (SI). It is also equal to approximately 2,236.93629 miles per hour (mph or mi/h), or 3,280.8399 feet per second (ft/s), or 39,370.0787 inches per second (in/s) or 1,943.8445 knots (kn).

The speed is the distance traveled by an object during a period of time. Thus, kilometers per second (or kilometers/second) show how many kilometers are traveled in one second. The kilometer is a unit of length in the metric system while the second is a unit of time.

*Symbol:*

km/s

*Plural:*

kilometers per second

*aka:*

**kilometre/second**, kilometer per second (plural: kilometers per second, US spelling), **kilometer/second** (plural: kilometers/second, US spelling)

## Kilometer per second conversions: direct links

A detailed list with conversions from kilometers per second to other (metric, imperial, or customary) speed and velocity measurement units is presented below.

- kilometer per second to centimeter per second (km/s to cm/s)
- kilometer per second to foot per hour (km/s to ft/h)
- kilometer per second to foot per minute (km/s to ft/min)
- kilometer per second to foot per second (km/s to ft/s)
- kilometer per second to inch per hour (km/s to in/h)
- kilometer per second to inch per minute (km/s to in/min)
- kilometer per second to inch per second (km/s to in/s)
- kilometer per second to kilometer per hour (km/s to km/h)
- kilometer per second to kilometer per minute (km/s to km/min)
- kilometer per second to knot (km/s to kn)
- kilometer per second to meter per hour (km/s to m/h)
- kilometer per second to meter per minute (km/s to m/min)
- kilometer per second to meter per second (km/s to m/s)
- kilometer per second to micrometer per second (km/s to μm/s)
- kilometer per second to mile per hour (km/s to mph)
- kilometer per second to mile per minute (km/s to mpm)
- kilometer per second to mile per second (km/s to mps)
- kilometer per second to millimeter per second (km/s to mm/s)
- kilometer per second to nautical mile per day (km/s to nmi/d)
- kilometer per second to nautical mile per hour (km/s to nmi/h)
- kilometer per second to speed of light (km/s to c)
- kilometer per second to speed of sound
- kilometer per second to walking speed