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Force and Torque

pdltotnf (UK)

Convert poundals (pdl) to UK long tons-force (tnf (UK)).

Factor1 pdl = 1.387542e-5 tnf (UK)

Converter

pdl

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

Result
1.38754tnf (UK)

Rendered to 6 significant figures.

Formula

Formula
tnf (UK) = pdl × 1.387542e-5

Multiply any value in poundals by 1.387542e-5 to obtain the value in UK long tons-force.

Worked example

Convert 100000 pdl to tnf (UK).

  1. 01Start with 100000 pdl.
  2. 02Multiply by the conversion factor: 100000 × 1.387542e-5 = 1.38754 tnf (UK).
Result100000 pdl = 1.38754 tnf (UK)

Conversion table

pdltnf (UK)
11.3875e-5
22.7751e-5
56.9377e-5
100.00013875
200.00027751
500.00069377
1000.0013875
2000.0027751
5000.0069377
10000.013875

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from pdl to tnf (UK)?
1 pdl equals 1.387542e-5 tnf (UK). To convert, multiply the value in poundals by 1.387542e-5.
How do I convert 1 pdl to tnf (UK)?
1 pdl = 1.38754e-5 tnf (UK). For any value, multiply by 1.387542e-5.
How do I convert tnf (UK) back to pdl?
Divide by the same factor — or equivalently, multiply by 72069.87. So 1 tnf (UK) = 72069.9 pdl.
When would I need to convert poundal to UK long ton-force?
Force conversions between pdl and tnf (UK) are needed in structural analysis, mechanical equipment design, lifting and rigging calculations, and load specification. Newtons and kilonewtons are standard in SI-based structural codes; pound-force and kips are common in US codes and vendor datasheets.
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).

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