Convert Atmosphere to Pound Per Square Inch (atm to psi)

In next fields, kindly type your value in the text box under title [ From: ] to convert from Atmosphere to pound per square inch (atm to psi). As you type your value, the answer will be automatically calculated and displayed in the text box under title [ To: ].


Atmosphere (abbreviation: atm): is a unit of standard pressure, equal to 101325 Pa, or 1.01325 bar.

Pound Per Square Inch (abbreviations: psi, or lb/in2): is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.

How to Convert Atmospheres to Pounds Per Square Inches

Example: How many pounds per square inches are equivalent to 12.95 Atmospheres?


1 Atmospheres = 14.69181 pounds per square inches

12.95 Atmospheres = Y pounds per square inches

Assuming Y is the answer, and by criss-cross principle;

Y equals 12.95 times 14.69181 over 1

(i.e.) Y = 12.95 * 14.69181 / 1 = 190.2589395 pounds per square inches

Answer is: 190.2589395 pounds per square inches are equivalent to 12.95 Atmospheres.

Practice Question: Convert the following units into psi:

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 45.7 atm

( ii ) 44.23 atm

( iii ) 16.62 atm

  • Wikipedia
  • USMA
  • NIST

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