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Atmospheres to PSI Converter

Convert atmospheres to PSI and PSI to atm instantly. Bidirectional pressure converter with formula and common values.

atm

PSI

36.74

psi

2.5 atm = 36.74 psi

psi = atm × 14.696

Atmospheres to PSI: 1 atm equals 14.696 psi. To convert atmospheres to psi, multiply by 14.696 (psi = atm × 14.696). For example, 10 atm = 146.96 psi.

How to Convert Atmospheres to PSI

To convert from atmospheres to psi, multiply the value by 14.696. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Atmospheres to PSI: psi = atm × 14.696
  • PSI to Atmospheres: atm = psi ÷ 14.696

Atmospheres to PSI Conversion Chart

Atmospheres (atm)PSI (psi)
0.11.4696
0.253.674
0.57.348
114.696
229.392
344.088
573.48
10146.96
20293.92
25367.4
50734.8
1001469.6
2503674
100014696

Understanding the Units

What is an Atmosphere?

A standard atmosphere equals exactly 101,325 pascals — defined as the average atmospheric pressure at sea level.

Common contexts: chemistry, reference conditions.

What is a PSI?

One pound-force per square inch (psi) equals approximately 6,894.757 pascals.

Common contexts: tire pressure, plumbing, pneumatic systems (US).

Real-World Reference Points

Item Atmospheres (atm) PSI (psi)
Car tire (typical)2.177532
US household water3.402350
Bicycle road tire6.8046100

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FAQ

How many PSI are in one atmosphere?

One atmosphere equals approximately 14.696 PSI. This is sea-level atmospheric pressure expressed in pounds per square inch.

How do I convert atmospheres to PSI?

Multiply the atmosphere value by 14.696. For example, 2.5 atm × 14.696 = 36.74 psi.

What is gauge pressure vs absolute pressure?

Gauge pressure (psig) reads zero at atmospheric pressure. Absolute pressure (psia) includes atmospheric pressure. So 0 psig = 1 atm = 14.696 psia.

What everyday pressures are measured in PSI?

Car tires: 30-35 psi. Bicycle tires: 40-130 psi. Water pressure in homes: 40-80 psi. Scuba tanks: 3,000 psi.

How many psi are in 1 atmospher?

1 atm equals 14.696 psi.

How do you convert atmospheres to psi?

Multiply the atmospher value by 14.696. Formula: psi = atm × 14.696.

How many psi are in 5 atmospheres?

5 atm = 73.48 psi.

How do you convert psi back to atmospheres?

Use the inverse formula: atm = psi ÷ 14.696. For example, 1 psi = 0.068046 atm.

What is the difference between Atmospher and PSI?

A standard atmosphere equals exactly 101,325 pascals — defined as the average atmospheric pressure at sea level. One pound-force per square inch (psi) equals approximately 6,894.757 pascals.