Pressure Converter
Convert between pressure units
0.580151
psi
rate：1 mbar = 0.01450377 psi
Results in all units
40 mbar| Unit | Symbol | Value |
|---|---|---|
| Metric | ||
| Pascals | Pa | 4,000 |
| Kilopascals | kPa | 4 |
| Megapascals | MPa | 0.004 |
| Hectopascals | hPa | 40 |
| Bars | bar | 0.04 |
| Millibars | mbar | 40 |
| Kilogram force/cm² | kgf/cm² | 0.040789 |
| Dynes/cm² | dyn/cm² | 40,000 |
| Meteorological / Liquid column | ||
| Atmospheres | atm | 0.039477 |
| Millimeters of mercury | mmHg | 30.002467 |
| Inches of mercury | inHg | 1.181199 |
| Millimeters of water | mmH₂O | 407.886485 |
| Inches of water | inH₂O | 16.058523 |
| Imperial / US | ||
| Pounds force/in² | psi | 0.580151 |
| Kilopounds force/in² | ksi | 0.00058 |
| Pounds force/ft² | psf | 83.541737 |
Popular Pressure Conversions
Recent Conversions
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40 Millibars
→
0.580151 Pounds force/in²
30 Radians/second
→
0.004775 Kilohertz
681 Meters per second squared
→
69.442674 Standard gravity
54 Megahertz
→
0.054 Gigahertz
3 Tablespoons (US)
→
9 Teaspoons (US)
36 Milliamperes
→
0.000036 Kiloamperes
89 BTU·in/(h·ft²·°F)
→
12.836282 W/(m·K)
1 Millidarcy
→
0.001 Darcy
1 Darcy
→
1,000 Millidarcy
7 Microsieverts
→
0.007 Millisieverts
Trending Conversions
Just Converted
60 Pounds force/ft²
→
0.0293 Kilogram force/cm²
42 Pounds force/ft²
→
0.002 Megapascals
41 Kilogram force/cm²
→
83,974.6189 Pounds force/ft²
95 Bars
→
38,138.9925 Inches of water
46 Dynes/cm²
→
4.690695e-5 Kilogram force/cm²
40 Millibars
→
0.5802 Pounds force/in²
33 Hectopascals
→
13.2483 Inches of water
82 Kilopounds force/in²
→
565,370.098 Kilopascals
87 Millimeters of mercury
→
115.9905 Millibars
58 Pounds force/in²
→
0.3999 Megapascals
Common Scenarios
Pressure conversion is an important reference in mechanical engineering, meteorology, and medicine. When inflating car tires, gauges often show psi or bar; in repair shops, mechanics might use kg/cm² or kPa. Weather forecasts use hectopascals (hPa).
History & Background
In the 17th century, Torricelli conducted his famous mercury column experiment and invented the barometer. In the 19th century, the Industrial Revolution and steam engines created a need to measure steam pressure, leading to the "standard atmosphere (atm)."
Conversion Details
Pressure conversion is based on the pascal (Pa).
Common conversions: 1 atm = 101.325 kPa = 760 mmHg, 1 bar = 100 kPa ≈ 14.504 psi.