ATM Pressure Converter
Convert atmospheric pressure units between ATM, Pascal, Bar, PSI, and more
Pressure Unit Converter
Enter the pressure value you want to convert
Most common conversion result
Complete Pressure Conversions
Standard atmospheric pressure: 1 ATM = 101,325 Pa = 1.01325 bar = 14.696 PSI
Reference conditions: Sea level at 15°C (59°F)
Quick Reference Conversions
| ATM | Pascal (Pa) | Bar | PSI | Description |
|---|---|---|---|---|
| 1 | 1,01,325 | 1.01325 | 14.696 | Standard Atmospheric Pressure |
| 0.5 | 50,662.5 | 0.506625 | 7.348 | Half Atmospheric Pressure |
| 2 | 2,02,650 | 2.0265 | 29.392 | Double Atmospheric Pressure |
| 0.1 | 10,132.5 | 0.101325 | 1.4696 | One-tenth Atmospheric Pressure |
Real-World Pressure Examples
Sea level atmospheric pressure
Pressure: 1 ATM
Context: Standard reference pressure
Tire pressure (car)
Pressure: 2.1 ATM
Context: Typical car tire pressure
Pressure at 10m underwater
Pressure: 2 ATM
Context: Scuba diving depth
High altitude (Mt. Everest)
Pressure: 0.33 ATM
Context: Extreme low pressure
Deep ocean (1000m)
Pressure: 101 ATM
Context: Extreme high pressure
Pressure cooker
Pressure: 2.5 ATM
Context: Cooking applications
Conversion Formulas
ATM to Pascal
Pa = ATM × 101,325
ATM to Bar
bar = ATM × 1.01325
ATM to PSI
PSI = ATM × 14.696
ATM to mmHg
mmHg = ATM × 760
About Pressure Units
Atmosphere (ATM)
Standard unit representing the average atmospheric pressure at sea level. Equal to 101,325 Pascals.
Pascal (Pa)
SI unit of pressure. One Pascal equals one Newton per square meter.
Bar
Metric unit approximately equal to atmospheric pressure. Used in meteorology and engineering.
Common Applications
Weather forecasting and meteorology
Aviation altitude calculations
Scuba diving depth planning
Industrial process control
Tire pressure monitoring
Laboratory experiments
Understanding Atmospheric Pressure Conversion
What is Atmospheric Pressure?
Atmospheric pressure, measured in ATM, represents the force exerted by the weight of air in the Earth's atmosphere. At sea level, this pressure equals approximately 101,325 Pascals, which serves as the standard reference point for pressure measurements.
Why Convert ATM to Other Units?
- •Different industries use different standards
- •International scientific collaboration
- •Equipment calibration requirements
- •Regional measurement preferences
Pressure Altitude Effects
Atmospheric pressure decreases with altitude, affecting various applications from aviation to cooking. Understanding these variations is crucial for accurate measurements and safety in different environments.
Standard Reference Values
- Sea level: 1.0 ATM = 101,325 Pa
- 1,500m altitude: ~0.85 ATM
- 3,000m altitude: ~0.69 ATM
- Commercial aircraft: ~0.2-0.3 ATM
Important: Always consider environmental conditions when making precise pressure measurements, as temperature and humidity also affect readings.