SpeedKilometers per Hour to Feet per Second

Kilometers per Hour to Feet per Second

Methodology·How We Verify

Snapshot

1 Kilometer per Hour equals 0.911344 Feet per Second.

Reference basis: This conversion uses fixed meters-per-second-based speed definitions.
Example: For 0.5 Kilometers per Hour, the result equals 0.455672 Feet per Second.

Interactive conversion

Converter Calculator

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

0.911344 Feet per Second (ft/s)

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API and AI agent access

Kilometers per Hour to Feet per Second.

Machine-readable identifiers

Conversion family: speed
Source unit: kilometer_per_hour
Target unit: foot_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": "foot_per_second"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "speed",
    "value": 1,
    "from": "kilometer_per_hour",
    "to": "foot_per_second",
    "result": {
      "raw": 0.9113444152814232,
      "display": "0.911344"
    },
    "canonicalPath": "/speed/kilometers-per-hour-to-feet-per-second/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Convert km/h to m/s first (÷3.6), then convert meters to feet using 1 foot = 0.3048 meters.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Kilometer per Hour = 0.911344 Feet 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)	Feet per Second (ft/s)
1/2	0.455672
1	0.911344
2	1.822689
5	4.556722
10	9.113444
20	18.226888
30	27.340332
60	54.680665
100	91.134442
120	109.36133

Questions & answers

Frequently Asked Questions

What is 1 kilometer per hour in feet per second?

1 Kilometer per Hour equals 0.911344 Feet per Second on this page.