Skip to content

Kilometers per Hour to Kilometers per Second Converter

Convert km/h to km/s and km/s to km/h instantly. Bidirectional speed converter with formula and common values.

km/h

Kilometers per Second

1

km/s

3600 km/h = 1 km/s

km/s = km/h ÷ 3600

How to Convert Kilometers per Hour to Kilometers per Second

To convert kilometers per hour to kilometers per second, divide by 3600. There are 3600 seconds in one hour.

Conversion Formula

  • Kilometers per Hour to Kilometers per Second: km/s = km/h / 3600
  • Kilometers per Second to Kilometers per Hour: km/h = km/s x 3600

Common Conversions

km/hkm/s
3600.1000
10000.2778
36001.0000
72002.0000
108003.0000
3600010.0000
10800030.0000

Related

MPH to KM/H Converter

Convert miles per hour to kilometers per hour and km/h to mph.

Knots to KM/H Converter

Convert knots to kilometers per hour and km/h to knots for nautical speed.

M/S to KM/H Converter

Convert meters per second to kilometers per hour and km/h to m/s.

FT/S to M/S Converter

Convert feet per second to meters per second and m/s to ft/s.

Mach to KM/H Converter

Convert Mach number to kilometers per hour and km/h to Mach.

KM/H to MPH Converter

Convert kilometers per hour to miles per hour and mph to km/h.

FAQ

How many km/s is 1 km/h?

One km/h equals approximately 0.000278 km/s.

How do I convert km/h to km/s?

Divide the km/h value by 3600. For example, 3600 km/h / 3600 = 1 km/s.

What is 1 km/s in km/h?

One km/s equals exactly 3,600 km/h, faster than any production car.

What everyday speed equals 1 km/s?

There is no everyday equivalent. 1 km/s is about Mach 2.9, faster than most aircraft.