Which torque units does this converter support?

It supports N·m, lbf·ft, kgf·m, and lbf·in.

Can I convert lbf·ft to N·m?

Yes. Select lbf·ft as the input unit and N·m as the output unit.

Does the result include other unit equivalents?

Yes. The result lists equivalent values in all four supported torque units.

Can I enter a negative torque value?

Yes. Negative values can represent counterclockwise or loosening torque.

How many decimal places can I display?

You can choose from 0 to 10 decimal places.

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Torque Unit Converter (N·m / lbf·ft / kgf·m / lbf·in)

Convert torque (moment of force) between N·m (SI base), lbf·ft (pound-foot), kgf·m (kilogram-force-metre), and lbf·in (pound-inch). Factors based on standard gravity g₀ = 9.80665 m/s² and 1 lbf = 4.4482216152605 N. Converts via N·m to the target unit and also lists the equivalent value in all four units for reference. Used for mechanical specs, automotive, and fastener tightening torque.

Execution

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Prepared example runs

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2 examples

100 N·m → lbf·ft ≈ 73.7562

100 N·m ÷ 1.3558179483314004 = 73.7562 lbf·ft. Common automotive wheel-nut torque spec.

{"result":"100 N·m = 73.7562 lbf·ft. All units: N·m=100, lbf·ft=73.7562, kgf·m=10.1972, lbf·in=885.0746.","metadata":{"input":{"inputUnit":"N·m","value":100,"outputUnit":"lbf·ft"},"result":{"outputValue":73.7562,"outputUnit":"lbf·ft","Nm":100,"lbfft":73.7562,"kgfm":10.1972,"lbfin":885.0746}}}

25 lbf·ft → N·m ≈ 33.8954

25 lbf·ft × 1.3558179483314004 = 33.8954 N·m. Small-engine spark-plug torque spec.

{"result":"25 lbf·ft = 33.8954 N·m. All units: N·m=33.8954, lbf·ft=25, kgf·m=3.4564, lbf·in=300.","metadata":{"input":{"inputUnit":"lbf·ft","value":25,"outputUnit":"N·m"},"result":{"outputValue":33.8954,"outputUnit":"N·m","Nm":33.8954,"lbfft":25,"kgfm":3.4564,"lbfin":300}}}

Inputs

Set the required fields, then run the tool.

4 options

SettingsAdjust formats, ranges, numbers, and modes.4

Input unitselectOptionalValuenumberRequiredTorque value in the selected Input unit. Can be negative (e.g. counterclockwise / loosening).Output unitselectOptionalDecimal PlacesnumberOptional

Result

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Samples

Torque Unit Converter (N·m / lbf·ft / kgf·m / lbf·in)

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Prepared example runs

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Key facts

Overview

When to use

How it works

Use cases

Examples

1. Automotive wheel-nut torque conversion

2. Small-engine spark-plug torque conversion

FAQ

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