Feet to period (seconds)
Type a value in ft to get it in s period instantly.
1.003s period
That's 1.01× as long as a mantel clock pendulum, while a seconds pendulum is 4× longer. It takes 1.003 s to swing there and back, ticking 119.6 times a minute.
Convert the other way: s period to ft
What it means
How long is that pendulum?
Simple pendulum, small swings, g = 9.80665 m/s². Length is from the pivot to the centre of the bob.
The math
How to convert ft to s period
T = 2π √(L ÷ g); L = g × (T ÷ 2π)², with g = 9.80665 m/s².
Example: 0.82 ft = 1.00308 s period.
Every unit
That pendulum in every unit
Tables
ft to s period conversion table
| ft | s period |
|---|---|
| 0.164 ft | 0.448589 s period |
| 0.328 ft | 0.634401 s period |
| 0.656 ft | 0.897179 s period |
| 0.82 ft | 1.00308 s period |
| 1.64 ft | 1.41856 s period |
| 2.46 ft | 1.73738 s period |
| 3.26 ft | 2.00003 s period |
| 3.28 ft | 2.00615 s period |
| 4.92 ft | 2.45702 s period |
| 6.56 ft | 2.83713 s period |
| 9.84 ft | 3.47476 s period |
| 16.4 ft | 4.48589 s period |
| 32.8 ft | 6.34401 s period |
| 220 ft | 16.43 s period |
s period to ft conversion table
| s period | ft |
|---|---|
| 0.449 s period | 0.1643 ft |
| 0.634 s period | 0.327585 ft |
| 0.897 s period | 0.655739 ft |
| 1 s period | 0.814978 ft |
| 1.42 s period | 1.64332 ft |
| 1.74 s period | 2.46743 ft |
| 2 s period | 3.25991 ft |
| 2.01 s period | 3.29259 ft |
| 2.46 s period | 4.93192 ft |
| 2.84 s period | 6.57329 ft |
| 3.48 s period | 9.86971 ft |
| 4.49 s period | 16.43 ft |
| 6.34 s period | 32.7585 ft |
| 16.4 s period | 219.197 ft |
Quick answers
Quick answers
- How many s period is 1 ft?
- 1 ft is 1.10771 s period.
- How many s period is 10 ft?
- 10 ft is 3.50289 s period.
- How many s period is 0.82 ft?
- 0.82 ft is 1.00308 s period.
The units
About these units
Feet (ft)
Length in feet.
Period (seconds) (s period)
Time for a full swing, there and back.
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