Pascal (Pa)
SI derived unit: one newton per square meter.
What is a pascal?
- Symbol
- Pa
- Quantity
- Pressure
- Unit system
- SI
- Definition
- SI derived unit: one newton per square meter.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
The SI unit of pressure: one newton per square meter. Used in science and for small pressure differences.
Pascal in other pressure units
- 1 Pa = 0.01 hPaHectopascal
- 1 Pa = 0.001 kPaKilopascal
- 1 Pa = 0.000001 MPaMegapascal
- 1 Pa = 1e-9 GPaGigapascal
- 1 Pa = 0.01 mbarMillibar
- 1 Pa = 0.00001 barBar
- 1 Pa ≈ 0.000009869232667 atmStandard atmosphere
- 1 Pa ≈ 0.00001019716213 atTechnical atmosphere
- 1 Pa ≈ 0.007500616827 TorrTorr
- 1 Pa ≈ 0.007500615758 mmHgMillimeter of mercury
- 1 Pa ≈ 0.0001450377377 psiPascal to Pound-force per square inch converter
- 1 Pa ≈ 1.450377377e-7 ksiKilopound-force per square inch
Pascal quick reference
| Pascal | Pound-force per square inch | Bar | Hectopascal |
|---|---|---|---|
| 1 Pa | ≈ 0.0001450377377 psi | = 0.00001 bar | = 0.01 hPa |
| 10 Pa | ≈ 0.001450377377 psi | = 0.0001 bar | = 0.1 hPa |
| 100 Pa | ≈ 0.01450377377 psi | = 0.001 bar | = 1 hPa |
| 1000 Pa | ≈ 0.1450377377 psi | = 0.01 bar | = 10 hPa |
Where the pascal fits
The next larger pressure unit is the hectopascal (hPa). 1 Pa = 0.01 hPa, and 1 hPa = 100 Pa.
Frequently asked questions
- How many psi are in one pascal?
- One pascal ≈ 0.0001450377377 psi (psi).
- How many bars are in one pascal?
- One pascal = 0.00001 bar (bars).
- How many hectopascals are in one pascal?
- One pascal = 0.01 hPa (hectopascals).