To convert hPa (hectoPascals) to PSI, multiply the hPa number by 0.014503773800722. To convert PSI to hPa, divide the PSI number by the same 0.014503773800722.

The formula used for converting a specific value from hectopascals to pounds per square inch is:

X hectopascals * cf = Y pounds per square inch

where

X = the specific value to be converted (in hectopascals)

cf = the conversion factor from hectopascals to pounds per square inch

Y = the result (in pounds per square inch)

Example

Let's suppose that you have a value of pressure of 439 hectopascals and want to express it in pounds per square inch.

439 hPa = (439 × 0.014503773800722) psi

439 hPa = 6.3671566985169 psi

Conversion factor

1 hectopascal is equal to 0.014503773800722 pound per square inch

(1 hPa = 0.014503773800722 psi )

To convert Celsius to Fahrenheit, the formula is (C x 1.8) + 32 = F Example: 100 x 1.8 = 180, 180 + 32 = 212. (Or long way: C x 9 then the result divided by 5, then you add 32 to that result. Example: 100 x 9 = 900, 900 / 5 = 180, + 32 = 212)

To convert Fahrenheit to Celsius, you first subtract 32 from the C number, next you multiply the result by 5, then finally you divide the last result by 9. Example: 212 - 32 = 180, 180 x 5 = 900, 900 / 9 = 100

OR you can either just go to

http://www.conversion-website.com and use the appropriate converter, or use one of the hundreds of conversion apps for your smartphone of choice.