Pound Per Square Foot (abbreviations: psf, or lb/ft2): is a British (Imperial) and American pressure unit which is directly related to the psi pressure unit by a factor of 144 (1 sq ft = 12 in x 12 in = 144 sq in). Where, 1 pound per square foot equals 47.8803 pascals.
Atmosphere (abbreviation: atm): is a unit of standard pressure, equal to 101325 Pa, or 1.01325 bar.
How to Convert Pounds Per Square Feet to Atmospheres
Example: How many Atmospheres are equivalent to 71.17 pounds per square feet?
As;
1 pounds per square feet = 0.00047267423142553 Atmospheres
71.17 pounds per square feet = Y Atmospheres
Assuming Y is the answer, and by criss-cross principle;
Y equals 71.17 times 0.00047267423142553 over 1
(i.e.) Y = 71.17 * 0.00047267423142553 / 1 = 0.033640225050555 Atmospheres
Answer is: 0.033640225050555 Atmospheres are equivalent to 71.17 pounds per square feet.
Practice Question: Convert the following units into atm:
N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.
( i ) 3.39 psf
( ii ) 93.42 psf
( iii ) 91.37 psf
