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The section's mass per metre run.
Take the nominal figure straight from the section table — in a UK designation such as 457×191×67 it is the last number. It covers the rolled section only, not end plates, bolts, fixings, coatings or fire protection.
Weight per foot
45.02 lb/ft
Converted using an exact defined factor of 0.6719689749451422 lb/ft per kg/m. The table figure is a nominal mass — mill tolerance, connections and coatings all sit outside it.
- Conversion factor applied
- 0.67 lb/ft per kg/m
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Kilograms per Metre to Pounds per Foot Calculator: 45.02 lb/ft — shown in imperial, US market. The link sets both, so the result they see is the one on your screen.
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How this was calculated
Formula source(s)
- Exact ratio. 1 lb = 0.45359237 kg and 1 ft = 0.3048 m, both by definition, so 1 kg/m = 0.3048 ÷ 0.45359237 lb/ft = 30480000/45359237. The fraction is exact; the decimal 0.671968975139506866… does not terminate, so the multiplier shown is that fraction rounded.
Inputs used
- Mass per metre (kg/m)
- 67
Intermediate steps
- Conversion factor applied
- 0.67 lb/ft per kg/m
Confidence note: Converted using an exact defined factor of 0.6719689749451422 lb/ft per kg/m. The table figure is a nominal mass — mill tolerance, connections and coatings all sit outside it.
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This result is a specification — 45.02 lb/ft — not a quantity. Put the thing it sizes into your project: how many, what you call it, and your supplier’s price.
Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.
Sources checked 2026-08-26 · in the site-wide review of 2026-09-06 · v1.0.0
Regulatory standards & verification citations1
- Exact ratio. 1 lb = 0.45359237 kg and 1 ft = 0.3048 m, both by definition, so 1 kg/m = 0.3048 ÷ 0.45359237 lb/ft = 30480000/45359237. The fraction is exact; the decimal 0.671968975139506866… does not terminate, so the multiplier shown is that fraction rounded.
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European section tables state mass per metre — a 457×191×67 UB is 67 kg/m, and the designation says so. Getting that to pounds per foot is what lets it be lined up against an AISC W-shape, priced with a US mill or entered on an American lift sheet. Multiply by 0.672, or about two thirds. What the figure will not do is survive contact with a weighbridge: it is the theoretical mass from the section table, and rolled sections are permitted a mass tolerance against it, so a delivered bundle can weigh a little more or less with nothing wrong. Nor does it include end plates, bolts, fireproofing or paint, all of which the fabricator's invoice weight does.