Pascals (Pa)
The pascal is the SI unit of pressure: one newton of force on one square meter.
Convert pascals to any pressure unit
1 pascal = 0.000145037738 pounds per square inch
Quick facts
- Unit
- Pascal (plural: pascals)
- Symbol
- Pa
- Measures
- Pressure / Stress
- System
- Metric (SI)
- Definition
- One newton per square meter.
- Also written
- newton per square meter, N/m²
1 pascal in other units
| Pounds per square inch | 0.000145037738 psi |
| Bars | 0.00001 bar |
| Kilopascals | 0.001 kPa |
| Standard atmospheres | 0.000009869233 atm |
| Millimeters of mercury | 0.007500615758 mmHg |
| Hectopascals | 0.01 hPa |
| Megapascals | 0.000001 MPa |
| Inches of mercury | 0.000295299833 inHg |
What is a pascal?
The pascal is the SI unit of pressure: one newton of force on one square meter. It is named after Blaise Pascal, who showed in 1648 that air pressure falls with altitude. A pascal is a very small pressure, about the weight of a sheet of paper lying flat, so practical work uses kPa, MPa and hPa.
Where the pascal sits among pressure units
The pascal is number 5 of 44 on our scale of pressure units, ordered from smallest to largest.
What pascals are used for
- Science and engineering calculations
- Building ventilation and fan pressures
- Acoustics (sound pressure)
Pascals in real life
- A banknote lying on a table exerts about 1 Pa
- Atmospheric pressure is about 101,325 Pa
Top pascal conversions
- Pascals to pounds per square inch
- Pascals to bars
- Pascals to kilopascals
- Pascals to standard atmospheres
- Pascals to millimeters of mercury
- Pascals to hectopascals
- Pascals to megapascals
- Pascals to inches of mercury
- Pascals to millibars
- Pascals to centimeters of water
- Pascals to inches of water
- Pascals to torr
Common amounts of pascals
- 0.1 Pa
- 0.2 Pa
- 0.3 Pa
- 0.4 Pa
- 0.5 Pa
- 0.6 Pa
- 0.7 Pa
- 0.8 Pa
- 0.9 Pa
- 1 Pa
- 1.5 Pa
- 2 Pa
- 2.5 Pa
- 3 Pa
- 3.5 Pa
- 4 Pa
- 4.5 Pa
- 5 Pa
- 6 Pa
- 7 Pa
- 7.5 Pa
- 8 Pa
- 9 Pa
- 10 Pa
- 11 Pa
- 12 Pa
- 13 Pa
- 14 Pa
- 15 Pa
- 16 Pa
- 17 Pa
- 18 Pa
- 19 Pa
- 20 Pa
- 21 Pa
- 22 Pa
- 23 Pa
- 24 Pa
- 25 Pa
- 26 Pa
- 27 Pa
- 28 Pa
- 29 Pa
- 30 Pa
- 31 Pa
- 32 Pa
- 33 Pa
- 34 Pa
- 35 Pa
- 36 Pa
- 37 Pa
- 38 Pa
- 39 Pa
- 40 Pa
- 41 Pa
- 42 Pa
- 43 Pa
- 44 Pa
- 45 Pa
- 46 Pa
- 47 Pa
- 48 Pa
- 49 Pa
- 50 Pa
- 51 Pa
- 52 Pa
- 53 Pa
- 54 Pa
- 55 Pa
- 56 Pa
- 57 Pa
- 58 Pa
- 59 Pa
- 60 Pa
- 61 Pa
- 62 Pa
- 63 Pa
- 64 Pa
- 65 Pa
- 66 Pa
- 67 Pa
- 68 Pa
- 69 Pa
- 70 Pa
- 71 Pa
- 72 Pa
- 73 Pa
- 74 Pa
- 75 Pa
- 76 Pa
- 77 Pa
- 78 Pa
- 79 Pa
- 80 Pa
- 81 Pa
- 82 Pa
- 83 Pa
- 84 Pa
- 85 Pa
- 86 Pa
- 87 Pa
- 88 Pa
- 89 Pa
- 90 Pa
- 91 Pa
- 92 Pa
- 93 Pa
- 94 Pa
- 95 Pa
- 96 Pa
- 97 Pa
- 98 Pa
- 99 Pa
- 100 Pa
- 110 Pa
- 120 Pa
- 130 Pa
- 140 Pa
- 150 Pa
- 160 Pa
- 170 Pa
- 180 Pa
- 190 Pa
- 200 Pa
- 210 Pa
- 220 Pa
- 230 Pa
- 240 Pa
- 250 Pa
- 260 Pa
- 270 Pa
- 280 Pa
- 290 Pa
- 300 Pa
- 310 Pa
- 320 Pa
- 330 Pa
- 340 Pa
- 350 Pa
- 360 Pa
- 370 Pa
- 380 Pa
- 390 Pa
- 400 Pa
- 410 Pa
- 420 Pa
- 430 Pa
- 440 Pa
- 450 Pa
- 460 Pa
- 470 Pa
- 480 Pa
- 490 Pa
- 500 Pa
- 600 Pa
- 700 Pa
- 800 Pa
- 900 Pa
- 1,000 Pa
- 1,200 Pa
- 1,500 Pa
- 2,000 Pa
- 2,500 Pa
- 3,000 Pa
- 4,000 Pa
- 5,000 Pa
- 10,000 Pa
Convert pascals to all 45 other units
Metric (SI)
- Pa to bar
- Pa to kPa
- Pa to hPa
- Pa to MPa
- Pa to mbar
- Pa to GPa
- Pa to barg
- Pa to kbar
- Pa to dbar
- Pa to cbar
- Pa to µbar
Atmospheres & mercury
Water column
US & imperial
Gravitational metric & CGS
Scientific
Convert to pascals
- Pounds per square inch to pascals
- Bars to pascals
- Kilopascals to pascals
- Standard atmospheres to pascals
- Millimeters of mercury to pascals
- Hectopascals to pascals
- Megapascals to pascals
- Inches of mercury to pascals
- Millibars to pascals
- Centimeters of water to pascals
- Inches of water to pascals
- Torr to pascals
Frequently asked questions
What is a pascal?
The pascal is the SI unit of pressure: one newton of force on one square meter.
How is the pascal defined?
One newton per square meter.
How many pounds per square inch are in a pascal?
One pascal equals 0.000145037738 pounds per square inch.
How many bars are in a pascal?
One pascal equals 0.00001 bars.
How many kilopascals are in a pascal?
One pascal equals 0.001 kilopascals.