Atmosphere(atm)
The atmosphere is a pressure unit equal to 101,325 pascals and based on standard atmospheric pressure.
Reviewed
- Symbol
- atm
- Quantity
- Pressure
- Measurement system
- Other
- SI classification
- Non-SI unit
- Reference unit
- Pascal
- Exact relationship
- 1 atm = 101,325 Pa exactly
What the atmosphere is
The atmosphere is a practical reference pressure used in chemistry, meteorology, and scientific calculations.