Kilometers per Hour to Feet per Second
Snapshot
1 Kilometer per Hour equals 0.911344 Feet per Second.
- Reference basis: This result uses fixed vessel-speed definitions anchored to knots and the active marine route.
- Example: For 5 Kilometers per Hour, the result equals 4.556722 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)
SwitchAPI and AI agent access
Kilometers per Hour to Feet per Second.
Machine-readable identifiers
- Conversion family
marine- Source unit
kilometers_per_hour- Target unit
feet_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/convertRequest
{
"family": "marine",
"value": 1,
"from": "kilometers_per_hour",
"to": "feet_per_second"
}Essential response
{
"ok": true,
"conversion": {
"family": "marine",
"value": 1,
"from": "kilometers_per_hour",
"to": "feet_per_second",
"result": {
"raw": 0.911344415281,
"display": "0.911344"
},
"canonicalPath": "/marine/kilometers-per-hour-to-feet-per-second/"
}
}Explanation
Kilometers per Hour convert into feet per second inside the marine speed family. Formula: ft/s = km/h × 0.911344415281. The same fixed relationship is used in the calculator, common values, and mirror page so route checks stay aligned.
This is useful for marine navigation, onboard operations, sounding work, or vessel-capacity checks where nautical units and engineering units need to line up without changing the underlying reference model.
Common Conversion Values
| Kilometer per Hour (km/h) | Feet per Second (ft/s) |
|---|---|
| 1 | 0.911344 |
| 5 | 4.556722 |
| 10 | 9.113444 |
| 15 | 13.670166 |
| 20 | 18.226888 |
| 30 | 27.340332 |
| 40 | 36.453777 |