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Acceleration

(km/h)/stoft/s²

Convert kilometres per hour per second ((km/h)/s) to feet per second squared (ft/s²).

Factor1 (km/h)/s = 0.9113444 ft/s²

Converter

(km/h)/s

Accepts numbers or expressions, e.g. 150 + 14.7

Result
9.11344ft/s²

Rendered to 6 significant figures.

Formula

Formula
ft/s² = (km/h)/s × 0.9113444

Multiply any value in kilometres per hour per second by 0.9113444 to obtain the value in feet per second squared.

Worked example

Convert 10 (km/h)/s to ft/s².

  1. 01Start with 10 (km/h)/s.
  2. 02Multiply by the conversion factor: 10 × 0.9113444 = 9.11344 ft/s².
Result10 (km/h)/s = 9.11344 ft/s²

Conversion table

(km/h)/sft/s²
10.91134
21.8227
54.5567
109.1134
2018.227
5045.567
10091.134
200182.27
500455.67
1000911.34

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from (km/h)/s to ft/s²?
1 (km/h)/s equals 0.9113444 ft/s². To convert, multiply the value in kilometres per hour per second by 0.9113444.
How do I convert 1 (km/h)/s to ft/s²?
1 (km/h)/s = 0.911344 ft/s². For any value, multiply by 0.9113444.
How do I convert ft/s² back to (km/h)/s?
Divide by the same factor — or equivalently, multiply by 1.09728. So 1 ft/s² = 1.09728 (km/h)/s.
When would I need to convert kilometre per hour per second to foot per second squared?
Acceleration conversions between (km/h)/s and ft/s² are common in vibration analysis, seismic load calculations, mechanical equipment specifications, and motion-control design. m/s² is the SI standard; g (standard gravity) is widely used in shock, vibration, and ride-quality work.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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