▸ processconvert
Surface Tension

lbf/fttoN/m

Convert pounds-force per foot (surface tension) (lbf/ft) to newtons per metre (surface tension) (N/m).

Factor1 lbf/ft = 14.5939 N/m

Converter

lbf/ft

Accepts numbers or expressions, e.g. 150 + 14.7

Result
14.5939N/m

Rendered to 6 significant figures.

Formula

Formula
N/m = lbf/ft × 14.5939

Multiply any value in pounds-force per foot (surface tension) by 14.5939 to obtain the value in newtons per metre (surface tension).

Worked example

Convert 1 lbf/ft to N/m.

  1. 01Start with 1 lbf/ft.
  2. 02Multiply by the conversion factor: 1 × 14.5939 = 14.5939 N/m.
Result1 lbf/ft = 14.5939 N/m

Conversion table

lbf/ftN/m
114.594
229.188
572.97
10145.94
20291.88
50729.7
1001459.4
2002918.8
5007297
100014594

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lbf/ft to N/m?
1 lbf/ft equals 14.5939 N/m. To convert, multiply the value in pounds-force per foot (surface tension) by 14.5939.
How do I convert 1 lbf/ft to N/m?
1 lbf/ft = 14.5939 N/m. For any value, multiply by 14.5939.
How do I convert N/m back to lbf/ft?
Divide by the same factor — or equivalently, multiply by 0.06852177. So 1 N/m = 0.0685218 lbf/ft.
When would I need to convert pound-force per foot (surface tension) to newton per metre (surface tension)?
Surface-tension conversions between lbf/ft and N/m 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