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Torque converter

pound force foot to newton millimeter

Convert pound force foot (lbf·ft) to newton millimeter (N·mm). Use an editable torque converter, conversion formula, and reference table.

1,355.817948

1 lbf·ft = 1,355.817948 N·mm

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Conversion formula

N·mm = lbf·ft × 1,355.817948

One pound force foot equals 1,355.817948 newton millimeter. Multiply your value in pound force foot by this factor to get newton millimeter. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 pound force foot:
5 × 1,355.817948 = 6,779.089742 N·mm

Conversion table

pound force foot (lbf·ft)newton millimeter (N·mm)
0.0113.55817948
0.1135.5817948
11,355.817948
22,711.635897
56,779.089742
1013,558.17948
2533,895.44871
5067,790.89742
100135,581.7948
10001,355,817.948

About these measurements

Torque describes a force’s turning effect around an axis.

The base reference used here is the newton meter. One pound force foot is 1.355817948 base units; one newton millimeter is 0.001 base units.

Important distinctions

Compound units must match the quantity and dimension. Temperature intervals use size factors rather than temperature offsets. Calorie and BTU entries use the explicit definitions shown.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert lbf·ft to N·mm?

Multiply the quantity in lbf·ft by 1,355.817948. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the newton millimeter to pound force foot converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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