SpeedKilometers per Hour to Meters per Second

Kilometers per Hour to Meters per Second

Methodology·How We Verify

Snapshot

1 Kilometer per Hour equals 0.277778 Meters per Second.

Reference basis: This conversion uses fixed meters-per-second-based speed definitions.
Example: For 0.5 Kilometers per Hour, the result equals 0.138889 Meters per Second.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

0.277778 Meters per Second (m/s)

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API and AI agent access

Kilometers per Hour to Meters per Second.

Machine-readable identifiers

Conversion family: speed
Source unit: kilometer_per_hour
Target unit: meter_per_second

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "speed",
  "value": 1,
  "from": "kilometer_per_hour",
  "to": "meter_per_second"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "speed",
    "value": 1,
    "from": "kilometer_per_hour",
    "to": "meter_per_second",
    "result": {
      "raw": 0.2777777777777778,
      "display": "0.277778"
    },
    "canonicalPath": "/speed/kilometers-per-hour-to-meters-per-second/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Divide by 3.6 (or multiply by 1000/3600) to convert hourly kilometers into meters per second.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Kilometer per Hour = 0.277778 Meters per Second (using fixed meters-per-second-based speed definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Kilometers per Hour (km/h)	Meters per Second (m/s)
1/2	0.138889
1	0.277778
2	0.555556
5	1.388889
10	2.777778
20	5.555556
30	8.333333
60	16.666667
100	27.777778
120	33.333333

Questions & answers

Frequently Asked Questions

What is 1 kilometer per hour in meters per second?

1 Kilometer per Hour equals 0.277778 Meters per Second on this page.