Pressure
hPatoN/mm²
Convert hectopascals (hPa) to newtons per square millimetre (N/mm²).
Factor1 hPa = 0.0001 N/mm²
Converter
hPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
N/mm²
Rendered to 6 significant figures.
Formula
Formula
N/mm² = hPa × 0.0001
Multiply any value in hectopascals by 0.0001 to obtain the value in newtons per square millimetre.
Worked example
Convert 1000 hPa to N/mm².
- 01Start with 1000 hPa.
- 02Multiply by the conversion factor: 1000 × 0.0001 = 0.1 N/mm².
Result1000 hPa = 0.1 N/mm²
Conversion table
| hPa | N/mm² |
|---|---|
| 1 | 0.0001 |
| 2 | 0.0002 |
| 5 | 0.0005 |
| 10 | 0.001 |
| 20 | 0.002 |
| 50 | 0.005 |
| 100 | 0.01 |
| 200 | 0.02 |
| 500 | 0.05 |
| 1000 | 0.1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from hPa to N/mm²?
1 hPa equals 0.0001 N/mm². To convert, multiply the value in hectopascals by 0.0001.
How do I convert 1 hPa to N/mm²?
1 hPa = 0.0001 N/mm². For any value, multiply by 0.0001.
How do I convert N/mm² back to hPa?
Divide by the same factor — or equivalently, multiply by 10000. So 1 N/mm² = 10000 hPa.
When would I need to convert hectopascal to newton per square millimetre?
Pressure conversions between hPa and N/mm² 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).