Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 MPa | 0.2953 inHg | |
| 0.01 MPa | 2.953 inHg | |
| 0.1 MPa | 29.53 inHg | |
| 1 MPa | 295.3 inHg | |
| 5 MPa | 1476.5 inHg | |
| 10 MPa | 2953 inHg | |
| 50 MPa | 14765 inHg | |
| 100 MPa | 29530 inHg | |
| 1000 MPa | 295300 inHg |
Formula: Inch Hg = Megapascal × 295.3
Multiply any megapascal value by 295.3 to get inch hg.
Reverse: Megapascal = Inch Hg × 0.003386
Common megapascal values — factor: 1 MPa = 295.3 inHg
| Megapascal (MPa) | Inch Hg (inHg) | Context |
|---|---|---|
| 0.0001 MPa | 0.02953 inHg | 1 kPa |
| 0.001 MPa | 0.2953 inHg | 10 kPa |
| 0.01 MPa | 2.953 inHg | 0.1 bar |
| 0.1 MPa | 29.53 inHg | 1 bar |
| 0.1013 MPa | 29.92 inHg | 1 atm |
| 1 MPa | 295.3 inHg | 10 bar / hydraulics |
| 10 MPa | 2,953 inHg | 100 bar |
| 100 MPa | 2.953e+04 inHg | 1,000 bar |
| 200 MPa | 5.906e+04 inHg | Scuba extreme |
| 400 MPa | 118,100 inHg | Waterjet cutting |
| 600 MPa | 177,200 inHg | Ultra-high pressure |
| 1,000 MPa | 295,300 inHg | Diamond anvil low |
| 0.006895 MPa | 2.036 inHg | 1 psi |
| 0.000133 MPa | 0.03927 inHg | 1 mmHg |
| 0.09807 MPa | 28.96 inHg | 1 kgf/cm² |
1 MPa = 295.3 inHg. Memorize for instant estimates.
Use 295.3 as a quick mental multiplier.
Multiply result by 0.003386 to recover the original MPa value.
Specifies concrete compressive strength (20–50 MPa) and steel yield strength (250–550 MPa).
Measures tensile strength, hardness, and fracture toughness in MPa.
Designs high-pressure hydraulic systems (20–35 MPa) for heavy machinery.
Calculates rock strength and in-situ stress states in MPa.
Specifies wellbore pressure, reservoir pressure, and fracture gradients in MPa.
Sets cutting pressure (200–600 MPa) for precision cutting applications.
The megapascal (MPa) equals 1,000,000 pascals (1,000 kPa) and is the standard unit for high-pressure engineering applications including hydraulics, structural materials, and industrial processes.
Steel has a tensile strength of about 400–550 MPa; concrete compressive strength is typically 20–40 MPa. Hydraulic systems in heavy machinery operate at 20–35 MPa. Water jet cutting uses pressures up to 600 MPa.
Interesting fact: The deepest point in the ocean (Mariana Trench, ~11,000 m) has a pressure of about 110 MPa — over 1,000 times atmospheric pressure.
Inches of mercury (inHg) is the pressure unit used in US aviation and weather reporting, defined as the pressure exerted by a 1-inch column of mercury (3,386.39 Pa). It has been standard in US aviation since the early 20th century.
US aviation altimeters are set in inHg (standard: 29.92 inHg). US weather broadcasts report barometric pressure in inHg. HVAC engineers in the US use inHg for duct static pressure measurements.
Interesting fact: Pilots set their altimeter to the local QNH (pressure at sea level) in inHg to ensure their altitude reading is accurate — a difference of 0.1 inHg causes an altimeter error of about 100 feet.
Converting megapascal to inch hg is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 MPa = 1476 inHg and 10 MPa = 2953 inHg. For the reverse: 1 inHg = 0.003386 MPa. The exact factor is 1 MPa = 295.3 inHg.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.