Pressure
N/mm²toinHg
Convert newtons per square millimetre (N/mm²) to inches of mercury (0 °C) (inHg).
Factor1 N/mm² = 295.2998 inHg
Converter
N/mm²
Accepts numbers or expressions, e.g. 150 + 14.7
Result
inHg
Rendered to 6 significant figures.
Formula
Formula
inHg = N/mm² × 295.2998
Multiply any value in newtons per square millimetre by 295.2998 to obtain the value in inches of mercury (0 °C).
Worked example
Convert 1 N/mm² to inHg.
- 01Start with 1 N/mm².
- 02Multiply by the conversion factor: 1 × 295.2998 = 295.3 inHg.
Result1 N/mm² = 295.3 inHg
Conversion table
| N/mm² | inHg |
|---|---|
| 1 | 295.3 |
| 2 | 590.6 |
| 5 | 1476.5 |
| 10 | 2953 |
| 20 | 5906 |
| 50 | 14765 |
| 100 | 29530 |
| 200 | 59060 |
| 500 | 1.4765e+5 |
| 1000 | 2.9530e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from N/mm² to inHg?
1 N/mm² equals 295.2998 inHg. To convert, multiply the value in newtons per square millimetre by 295.2998.
How do I convert 1 N/mm² to inHg?
1 N/mm² = 295.3 inHg. For any value, multiply by 295.2998.
How do I convert inHg back to N/mm²?
Divide by the same factor — or equivalently, multiply by 0.003386389. So 1 inHg = 0.00338639 N/mm².
When would I need to convert newton per square millimetre to inch of mercury (0 °C)?
Pressure conversions between N/mm² and inHg are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).