Enter the wind speed or pressure into the calculator to determine the corresponding value.
Psi To Wind Speed Formula
The following formula is used to calculate the wind speed from pressure in psi.
WS = 237.2 * \sqrt(P)
Variables:
- WS is the wind speed in miles per hour (mph)
- P is the pressure in pounds per square inch (psi)
To calculate the wind speed, multiply 237.2 times the square root of the pressure in pounds per square inch.
| Pressure (psi) | Wind Speed (mph) | km/h | m/s | knots |
|---|---|---|---|---|
| 0.005 | 16.8 | 27.0 | 7.5 | 14.6 |
| 0.010 | 23.7 | 38.1 | 10.6 | 20.6 |
| 0.020 | 33.6 | 54.1 | 15.0 | 29.2 |
| 0.030 | 41.1 | 66.2 | 18.4 | 35.7 |
| 0.050 | 53.1 | 85.4 | 23.8 | 46.2 |
| 0.075 | 65.0 | 104.6 | 29.1 | 56.5 |
| 0.100 | 75.0 | 120.7 | 33.5 | 65.2 |
| 0.150 | 91.9 | 147.9 | 41.1 | 79.9 |
| 0.200 | 106.0 | 170.6 | 47.4 | 92.2 |
| 0.250 | 118.6 | 190.9 | 53.0 | 103.2 |
| 0.300 | 129.9 | 209.1 | 58.1 | 113.0 |
| 0.400 | 150.0 | 241.4 | 67.1 | 130.5 |
| 0.500 | 167.8 | 270.0 | 75.1 | 146.0 |
| 0.600 | 183.8 | 296.0 | 82.2 | 159.9 |
| 0.750 | 205.5 | 330.8 | 92.0 | 178.6 |
| 1.000 | 237.2 | 382.0 | 106.0 | 206.3 |
| 1.250 | 265.2 | 426.9 | 118.6 | 230.7 |
| 1.500 | 290.5 | 467.6 | 130.0 | 252.7 |
| 1.750 | 313.7 | 504.9 | 140.3 | 272.7 |
| 2.000 | 335.4 | 539.7 | 150.0 | 292.0 |
| * Rounded to 1 decimal. Assumes sea‑level standard air (q = 0.00256·V² psf). Formula used: V(mph) = 237.1708245 × √P(psi). Speed conversions: 1 mph = 1.60934 km/h = 0.44704 m/s = 0.869976 knots. | ||||
What is Psi To Wind Speed?
Psi to wind speed conversion is a method used to determine the wind speed based on the pressure exerted by the wind. This conversion is particularly useful in various fields such as meteorology, engineering, and aviation, where understanding the relationship between pressure and wind speed is crucial. The pressure exerted by the wind is measured in pounds per square inch (psi), and this value can be converted to wind speed in miles per hour (mph) using a specific formula. This conversion helps in predicting weather patterns, designing structures to withstand wind forces, and ensuring safe aviation operations.
How to Calculate Psi To Wind Speed?
The following steps outline how to calculate the wind speed from pressure in psi.
- First, measure the pressure exerted by the wind in psi.
- Next, subtract the atmospheric pressure (14.7 psi) from the measured pressure.
- Finally, multiply the result by 1.87 to get the wind speed in mph.
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Pressure (P) = 20 psi
Wind Speed (WS) = 1.87 * (20 - 14.7) = 9.87 mph