Surface Tension
mJ/m²tolbf/in
Convert millijoules per square metre (mJ/m²) to pounds-force per inch (surface tension) (lbf/in).
Factor1 mJ/m² = 5.710147e-6 lbf/in
Converter
mJ/m²
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lbf/in
Rendered to 6 significant figures.
Formula
Formula
lbf/in = mJ/m² × 5.710147e-6
Multiply any value in millijoules per square metre by 5.710147e-6 to obtain the value in pounds-force per inch (surface tension).
Worked example
Convert 200000 mJ/m² to lbf/in.
- 01Start with 200000 mJ/m².
- 02Multiply by the conversion factor: 200000 × 5.710147e-6 = 1.14203 lbf/in.
Result200000 mJ/m² = 1.14203 lbf/in
Conversion table
| mJ/m² | lbf/in |
|---|---|
| 1 | 5.7101e-6 |
| 2 | 1.142e-5 |
| 5 | 2.8551e-5 |
| 10 | 5.7101e-5 |
| 20 | 0.0001142 |
| 50 | 0.00028551 |
| 100 | 0.00057101 |
| 200 | 0.001142 |
| 500 | 0.0028551 |
| 1000 | 0.0057101 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mJ/m² to lbf/in?
1 mJ/m² equals 5.710147e-6 lbf/in. To convert, multiply the value in millijoules per square metre by 5.710147e-6.
How do I convert 1 mJ/m² to lbf/in?
1 mJ/m² = 5.71015e-6 lbf/in. For any value, multiply by 5.710147e-6.
How do I convert lbf/in back to mJ/m²?
Divide by the same factor — or equivalently, multiply by 175126.8. So 1 lbf/in = 175127 mJ/m².
When would I need to convert millijoule per square metre to pound-force per inch (surface tension)?
Surface-tension conversions between mJ/m² and lbf/in appear in coatings and wettability work, surfactant and interfacial-tension measurement, foam and emulsion characterisation, and capillary/droplet-engineering datasheets. mN/m, dyn/cm and mJ/m² are exact numerical equivalents — they appear interchangeably across SI, CGS and surface-free-energy notations. lbf/ft and lbf/in are common in US petroleum interfacial-tension datasheets and US coatings documentation. This category does not include temperature-dependent material lookups or capillary/contact-angle calculators.
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).
Related conversions
- lbf/in → mJ/m²pound-force per inch (surface tension) → millijoule per square metre
- N/m → lbf/innewton per metre (surface tension) → pound-force per inch (surface tension)
- lbf/in → N/mpound-force per inch (surface tension) → newton per metre (surface tension)
- N/m → mJ/m²newton per metre (surface tension) → millijoule per square metre
- mJ/m² → N/mmillijoule per square metre → newton per metre (surface tension)
- mN/m → lbf/inmillinewton per metre → pound-force per inch (surface tension)