Atmosphere to Pascal Converter
Enter a value to instantly convert between pressure units.
Precision4 dp
1 Atmosphere = 101325 Pascal
Key Formulas
Pound per Sq. Inch → Bar
bar = psi × 0.0689476Bar → Pound per Sq. Inch
psi = bar × 14.5038Atmosphere → Pound per Sq. Inch
psi = atm × 14.6959Pound per Sq. Inch → Atmosphere
atm = psi × 0.068046Formula
Pa = atm × 101325One standard atmosphere is defined as exactly 101,325 pascals. This SI unit conversion is fundamental in physics and engineering. The pascal (named after Blaise Pascal) is the SI derived unit for pressure, equal to one newton per square meter.
Source: NIST SP 811
Frequently Asked Questions
Real-World Examples
One atmosphere equals 101,325 pascals.
1 atm = 101325 Pa
Two atmospheres equals 202,650 Pa.
2 atm = 202650 Pa
Half atmosphere is 50,662.5 Pa.
0.5 atm = 50662.5 Pa
0.001 atm equals about 101 Pa.
0.001 atm = 101.325 Pa