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Torque Conversion Calculator (ft-lb ↔ Nm)

Convert torque specs between foot-pounds and newton-meters for bolts, fasteners, and hardware.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-26 · v1.0.0

Market
Imperial · sales tax

Converted torque

67.79 Nm

High confidence

With the figures above, the converted torque comes to 67.8 Nm. Note that torque sits at the low end of the range this calculator was checked against, so treat the output as indicative rather than settled. This is calculated for United States and cites IRC 2024. Building in another market? Change the selector above so the units and code reference follow.

Add the equipment this sizes

This result is a specification — 67.791 Nm — not a quantity. Put the thing it sizes into your project: how many, what you call it, and your supplier’s price.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • 1 ft-lb = 1.35582 Nm

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Frequently asked questions

Why does correct torque matter for construction hardware?
Under-tightened fasteners can loosen over time under vibration or load, while over-tightened ones can strip threads, crack material, or fail under stress — following a manufacturer's specified torque value gets the intended clamping force without damage.
Do all my tools use the same unit?
No — many US-made torque wrenches are marked in ft-lb or in-lb, while metric tools and many imported hardware specs use Nm, so converting between them is common when following a spec from a different region's manufacturer.
What's the difference between ft-lb and in-lb?
Both measure torque, just at different scales — in-lb is used for smaller fasteners requiring finer torque control (divide ft-lb by 12 to get in-lb), while ft-lb is typical for larger structural bolts.