Pressure conversions use Result = Value × (from-unit → pascals) ÷ (to-unit → pascals), based on standard published conversion factors.
1 atm to psi: 101,325 Pa ÷ 6894.76 ≈ 14.7 psi.
Pascals, bar, atmospheres, and PSI, all converted through a common pascals base unit.
Conversion factors for pascals-based units follow standard published values; the result is rounded to two decimal places for display.