Pounds per square inch to Atmospheres (standard) Converter

1 psi equals 0.068045964 atm, and 1 atm equals 14.695949 psi. Enter a value in either box to convert pounds per square inch to atmospheres (standard) and back. Formula: pascals = value x unit factor (1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168 Pa, 1 mmHg = 133.322387415 Pa).

· CalcFlow Editorial

1 psi = 0.068045964 atm

Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.

Pounds per square inch to Atmospheres (standard) Conversion Table

Pounds per square inchAtmospheres (standard)
1 psi0.068045964 atm
5 psi0.34022982 atm
10 psi0.68045964 atm
14.7 psi1.0002757 atm
30 psi2.0413789 atm
32 psi2.1774708 atm
100 psi6.8045964 atm
1,000 psi68.045964 atm
5,000 psi340.22982 atm

Atmospheres (standard) to Pounds per square inch Conversion Table

Atmospheres (standard)Pounds per square inch
1 atm14.695949 psi
5 atm73.479744 psi
10 atm146.95949 psi
14.7 atm216.03045 psi
30 atm440.87846 psi
32 atm470.27036 psi
100 atm1,469.5949 psi
1,000 atm14,695.949 psi
5,000 atm73,479.744 psi

Worked example: 10 psi = 0.68045964 atm. A tire at 32 psi is 32 x 0.0689476 = 2.206 bar, which is 220.6 kPa. A blood pressure of 120 mmHg is 16.0 kPa.

Need other units? Open the full Pressure Converter.

Popular Pressure Conversions

Pounds per square inch to BarBar to Pounds per square inchPounds per square inch to KilopascalsKilopascals to Pounds per square inchAtmospheres (standard) to Pounds per square inch

Formula

pascals = value x unit factor (1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168 Pa, 1 mmHg = 133.322387415 Pa)

Understanding Pressure Conversion

Pressure is force per area. The SI unit is the pascal, which is tiny, so kilopascals and bar are more common. Tire gauges in the US read pounds per square inch (psi) while much of the world uses bar or kPa. Weather reports use hectopascals or inches of mercury, and blood pressure is measured in millimeters of mercury. Standard atmospheric pressure is exactly 101,325 pascals.

Tips and Best Practices

  • 1One bar is about 14.504 psi and 100 kPa.
  • 2Standard atmosphere is 14.696 psi, 1.01325 bar or 760 mmHg.
  • 3Check whether a gauge reads absolute pressure or gauge pressure (relative to the air around you).

Real-World Example

A tire at 32 psi is 32 x 0.0689476 = 2.206 bar, which is 220.6 kPa. A blood pressure of 120 mmHg is 16.0 kPa.

Common Mistakes to Avoid

  • Confusing gauge and absolute pressure, which differ by about 14.7 psi at sea level.
  • Mixing kPa and MPa, a factor of 1,000.
  • Treating torr and mmHg as different; they agree to within a few parts per billion for practical use.

How to Use

  1. Type a number in the Pounds per square inch box.
  2. The Atmospheres (standard) result appears instantly; you can also edit the Atmospheres (standard) box to convert backwards.
  3. Use the swap button to reverse the direction and Copy result to copy the answer.

Frequently Asked Questions

Q

How many atmospheres (standard) are in 1 psi?

1 psi equals 0.068045964 atm.
Q

How many pounds per square inch are in 1 atm?

1 atm equals 14.695949 psi.
Q

What is the formula to convert pounds per square inch to atmospheres (standard)?

pascals = value x unit factor (1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168 Pa, 1 mmHg = 133.322387415 Pa).
Q

How many kPa is 1 atm?

One standard atmosphere is exactly 101.325 kPa.

Sources: NIST SP 811 (standard atmosphere, psi from lbf and in, conventional mmHg 13,595.1 kg/m3 x g_n); BIPM SI Brochure (bar).

More Converters

Energy ConverterPower ConverterForce ConverterTorque ConverterDensity ConverterAngle Converter