Seconds of fall to impact speed in km/h
Type a value in s to get it in km/h instantly.
112.6km/h
That's 5× as high as a 10 m diving board, while Niagara Falls is 1.02× higher. Without air it falls in 3.19 s and hits at 112.6 km/h (69.98 mph).
What it means
How high is that drop?
In a vacuum on Earth (g = 9.80665 m/s²). Air resistance matters for long falls: a skydiver tops out near 200 km/h.
The math
How to convert s to km/h
t = √(2h ÷ g), v = √(2 g h), with g = 9.80665 m/s²; h = ½ g t².
Example: 3.19 s = 112.62 km/h.
Every unit
That fall in every unit
Tables
s to km/h conversion table
| s | km/h |
|---|---|
| 0.319 s | 11.262 km/h |
| 0.452 s | 15.9574 km/h |
| 0.639 s | 22.5592 km/h |
| 1.01 s | 35.657 km/h |
| 1.43 s | 50.4846 km/h |
| 2.02 s | 71.314 km/h |
| 2.47 s | 87.2007 km/h |
| 3.19 s | 112.62 km/h |
| 4.52 s | 159.574 km/h |
| 6.39 s | 225.592 km/h |
| 7.82 s | 276.077 km/h |
| 10.1 s | 356.57 km/h |
km/h to s conversion table
| km/h | s |
|---|---|
| 11.3 km/h | 0.320078 s |
| 15.9 km/h | 0.450375 s |
| 22.5 km/h | 0.637323 s |
| 35.7 km/h | 1.01122 s |
| 50.4 km/h | 1.4276 s |
| 71.3 km/h | 2.0196 s |
| 87.3 km/h | 2.47281 s |
| 113 km/h | 3.20078 s |
| 159 km/h | 4.50375 s |
| 225 km/h | 6.37323 s |
| 276 km/h | 7.81782 s |
| 357 km/h | 10.1122 s |
Quick answers
Quick answers
- How many km/h is 1 s?
- 1 s is 35.3039 km/h.
- How many km/h is 10 s?
- 10 s is 353.039 km/h.
- How many km/h is 3.19 s?
- 3.19 s is 112.62 km/h.
The units
About these units
Seconds of fall (s)
Time to fall that height.
Impact speed in km/h (km/h)
Speed at the bottom in km/h.
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