Meters per Hour to Kilometers per Second Converter
Enter the speed in meters per hour below to convert it to kilometers per second.
Convert Meters per Hour to Kilometers per Second
Enter a value in meters per hour (m/h) to convert to kilometers per second (km/s).
Meters per Hour to Kilometers per Second Conversion Table
Table showing various meters per hour measurements converted to kilometers per second. Click any preset value or arrow to load it into the converter.
| Meters per Hour (m/h) | Kilometers per Second (km/s) |
|---|---|
| 1 m/h | 0.000000278 km/s |
| 10 m/h | 0.000002778 km/s |
| 100 m/h | 0.000027778 km/s |
| 1,000 m/h | 0.000277778 km/s |
| 10,000 m/h | 0.0027778 km/s |
| 100,000 m/h | 0.0277778 km/s |
| 1,000,000 m/h | 0.2777778 km/s |
| 5,000,000 m/h | 1.3888889 km/s |
| 10,000,000 m/h | 2.7777778 km/s |
| 25,400,000 m/h | 7.0555556 km/s |
How to Convert Meters per Hour to Kilometers per Second
To convert meters per hour to kilometers per second, multiply the speed by the following conversion ratio: 0.000000278 kilometers per second/meters per hour.
Since one meters per hour is equal to 0.000000278 kilometers per second, you can use this simple formula to convert:
The speed in kilometers per second is equal to the speed in meters per hour multiplied by 0.000000278.
For example, here's how to convert 5 meters per hour to kilometers per second using the formula above.
How Many Kilometers per Second Are in a Meters per Hour?
There are 0.000000278 kilometers per second in a meters per hour, which is why we use this value in the formula above.
Our meters per hour to kilometers per second calculator automatically converts your speed measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Meters per Hour and kilometers per second are both units used to measure speed. Keep reading to learn more about each unit.
What Is a Meters per Hour?
A meters per hour is a unit of speed equal to 1/3,600 of a meters per second (0.000277778 m/s). Equal to 0.001 km/h. [1]
The meters per hour is classified as a metric and SI-compatible unit of speed. Meters per Hour can be abbreviated as m/h; for example, 1 meters per hour can be written as 1 m/h.
When working with meters per hour (m/h) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, meters per hour (m/h) are widely used across fine-tolerance laboratory, analytical, and micro-scale speed measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Kilometers per Second?
A kilometers per second is a unit of speed equal to 1,000 meters per second (m/s), the base unit for speed. Astrophysics & orbital velocity unit equal to 1,000 m/s. [2]
The kilometers per second is classified as an International System of Units (SI) unit of speed. Kilometers per Second can be abbreviated as km/s; for example, 1 kilometers per second can be written as 1 km/s.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilometers per second (km/s) a convenient decimal multiple of the meters per second (m/s).
In practice, kilometers per second (km/s) are widely used across large-scale industrial, bulk, and macro-level speed specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting speed between meters per hour (m/h) and kilometers per second (km/s), keep full floating-point precision (1 m/h = 0.000000278 km/s; 1 km/s = 3,600,000 m/h) during intermediate calculations and round only the final kilometers per second figure to match your instrument tolerance.
More Meters per Hour & Kilometers per Second Conversions
Need to calculate in the opposite direction? Use our kilometers per second to meters per hour calculator to switch your starting unit immediately. You can also explore related tools such as converting kilometers per second to meters per hour, converting miles per hour to kilometers per hour, or converting kilometers per hour to miles per hour.
Convert from Meters per Hour
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Velocity))·Speed Metrology Standard — Meters per Hour (m/h) to Kilometers per Second (km/s)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Length & Distance)·Unit Specifications: Meters per Hour (m/h) & Kilometers per Second (km/s)
- [3]NIST CUU ReferenceNIST CUU (SI Coherent Derived Units (m/s))·Conversion Factors & Mathematical Basis (m/h to km/s)