Pressure
psitohPa
Convert pounds-force per square inch (psi) to hectopascals (hPa).
Factor1 psi = 68.94757 hPa
Converter
psi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
hPa
Rendered to 6 significant figures.
Formula
Formula
hPa = psi × 68.94757
Multiply any value in pounds-force per square inch by 68.94757 to obtain the value in hectopascals.
Worked example
Convert 100 psi to hPa.
- 01Start with 100 psi.
- 02Multiply by the conversion factor: 100 × 68.94757 = 6894.76 hPa.
Result100 psi = 6894.76 hPa
Conversion table
| psi | hPa |
|---|---|
| 1 | 68.948 |
| 2 | 137.9 |
| 5 | 344.74 |
| 10 | 689.48 |
| 20 | 1379 |
| 50 | 3447.4 |
| 100 | 6894.8 |
| 200 | 13790 |
| 500 | 34474 |
| 1000 | 68948 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from psi to hPa?
1 psi equals 68.94757 hPa. To convert, multiply the value in pounds-force per square inch by 68.94757.
How do I convert 1 psi to hPa?
1 psi = 68.9476 hPa. For any value, multiply by 68.94757.
How do I convert hPa back to psi?
Divide by the same factor — or equivalently, multiply by 0.01450377. So 1 hPa = 0.0145038 psi.
When would I need to convert pound-force per square inch to hectopascal?
Pressure conversions between psi and hPa 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).