Torque Converter — Nm to Lb-Ft, Lb-In & Kgf·m

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How to use Torque Converter

Enter the torque value in the “From” field — for example 110 for a 110 Nm wheel-nut spec.
Select its unit in the first dropdown (Newton-meter, Pound-foot, Kgf-meter…).
Select the unit your wrench or spec sheet uses in the second dropdown — the result appears instantly.
Use the swap button to reverse the conversion in one click.

What is Torque Converter?

A torque converter (the unit kind, not the transmission part) translates rotational force between units — newton-meters to pound-feet, or kilogram-force meters to Nm. Torque is force times lever arm: one newton-meter is a one-newton push at the end of a one-meter lever. It is what tightens bolts, turns crankshafts and strips threads when you overdo it.

The SI unit is the Nm; US spec sheets and torque wrenches use pound-feet (1 lb-ft = 1.3558 Nm) and pound-inches for small fasteners (1 lb-ft = 12 lb-in); older Japanese and European manuals used kgf·m (9.8067 Nm). A workshop routinely meets all four, which is what this tool untangles.

About the Torque Converter

This converter covers five units — newton-meter, kilonewton-meter, pound-foot, pound-inch and kilogram-force meter — converting any pair instantly as you type.

The canonical use is the torque wrench: your manual says wheel nuts take 110 Nm but the wrench dial reads lb-ft — that is 81 lb-ft. Engine specs run the other way: an American truck boasting 400 lb-ft of torque has 542 Nm. Small fasteners (electronics, bicycle stems) are specified in lb-in or low Nm — a 5 Nm stem bolt is 44 lb-in, easily stripped by a full-size wrench.

Anchors: 1 lb-ft = 1.356 Nm, 1 Nm = 0.738 lb-ft, 1 kgf·m = 9.807 Nm. Exact factors, computed in your browser.

Frequently Asked Questions

Multiply by 0.7376 (or divide by 1.3558). Typical wheel-nut torque of 110 Nm is 81 lb-ft; an engine's 500 Nm is 369 lb-ft.

A factor of 12: 1 lb-ft = 12 lb-in. Pound-inches are used for small fasteners — a laptop or bicycle bolt spec of 4 Nm is about 35 lb-in.

Kilogram-force meter: the torque of 1 kg of weight on a 1 m lever = 9.80665 Nm. Older Japanese and European car manuals use it — a spec of 12 kgf·m equals 118 Nm or 87 lb-ft.

Beyond spec, the bolt stretches past its elastic limit and the threads or the part can strip or crack — and torque scales fast: guessing “a bit more” with a long wrench can double the applied torque.

Yes — both are rotational force in Nm or lb-ft. An engine producing 400 Nm at the crank applies the same physical quantity a torque wrench does; the difference is just scale and where it acts.