inches of mercury to megapascals
Convert inch of mercury to megapascal — instant, free, with the formula shown.
How to convert inch of mercury to megapascal
To convert inch of mercury to megapascal, multiply by 0.00338639:
For example, 10 inHg × 0.003386 = 0.033864 MPa.
inHg to MPa conversion table
| inches of mercury (inHg) | megapascals (MPa) |
|---|---|
| 1 inHg | 0.003386 MPa |
| 2 inHg | 0.006773 MPa |
| 5 inHg | 0.016932 MPa |
| 10 inHg | 0.033864 MPa |
| 25 inHg | 0.08466 MPa |
| 50 inHg | 0.169319 MPa |
| 100 inHg | 0.338639 MPa |
| 250 inHg | 0.846597 MPa |
| 500 inHg | 1.693194 MPa |
| 1000 inHg | 3.386389 MPa |
Other inch of mercury conversions
Convert to megapascal from another unit
inHg to MPa — frequently asked
How many megapascals are in 1 inch of mercury?
1 inch of mercury = 0.003386 megapascals (inHg × 0.003386 = MPa).
What is the formula to convert inch of mercury to megapascal?
Multiply your inch of mercury value by 0.00338639 to get megapascal.
How do I convert 10 inches of mercury to megapascals?
10 inHg = 0.033864 MPa. For 100 inHg the answer is 0.338639 MPa. Use the calculator on this page for any other value.
When to convert inch of mercury to megapascal
Pressure conversion — common questions
What's the difference between bar and psi?
1 bar = 100,000 Pa ≈ 14.504 psi. Bar is metric/SI-friendly; psi is US imperial. Tire pressure in cars is commonly 30–35 psi or ≈ 2.1–2.4 bar.
Is 1 atmosphere the same as 1 bar?
Very close but not identical. 1 atm = 1.01325 bar = 101,325 Pa. 1 bar = 100,000 Pa.
Why is blood pressure in mmHg?
Historically measured with mercury manometers — the pressure that supports a column of mercury that many millimetres tall. 120 mmHg systolic ≈ 16 kPa.