SettingsSettings for this calculationUS
The torque value to convert.
Useful for setting a torque wrench to a manufacturer's spec given in the other unit — structural hardware, deck hardware, and lag bolts often have a specified tightening torque.
The unit your starting value is in.
The result shows the equivalent in the other unit.
Converted torque
67.79 Nm
They open the calculator with your figures already in it
Torque Conversion Calculator (ft-lb ↔ Nm): 67.79 Nm — 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)
- 1 ft-lb = 1.35582 Nm
Inputs used
- Torque
- 50
- Converting From
- Foot-pounds (ft-lb)
What this calculation does not cover
- Torque is only a means of reaching a clamp load, and what converts one to the other is friction rather than arithmetic. The same 100 Nm puts roughly 30 to 50% more tension into a lubricated or waxed fastener than into a dry plated one, so a spec converted perfectly and then applied to a bolt in the wrong condition either yields the fastener or leaves the joint slack. Match the lubrication state the published figure was written for.
- What you set on the dial is not what reaches the fastener once something sits between the two. A crowfoot or an offset adapter lengthens the lever arm and the setting has to be scaled by wrench length over wrench-plus-offset — a 3-inch crowfoot on an 18-inch wrench delivers about 17% more than the number showing. Plain extensions in line with the square drive change nothing.
- High-strength structural bolting is often not a torque job at all. Pretensioned and slip-critical connections are installed by turn-of-nut, direct-tension-indicating washers or tension-control bolts, and where a torque value is used at all it comes from a site calibration of that lot of bolts, not from a table. Putting the number into the units marked on your wrench does not make torque an accepted installation method for that connection.
Add the equipment this sizes
This result is a specification — 67.79 Nm — 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 2026-09-06 · in the site-wide review of 2026-09-06 · v1.0.1
Regulatory standards & verification citations1
- 1 ft-lb = 1.35582 Nm
Cite this page
Your workspace
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