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Newton-meters to Inch-pounds Converter

Convert torque from newton meters (N·m) to inch-pounds (lbf·in), with foot-pounds and other torque units alongside. Useful for small fasteners.

What this tool does

Convert torque from newton meters (N·m) to inch-pounds (lbf·in), with foot-pounds and other torque units alongside. Useful for small fasteners. Type an amount in newton meters, choose the units, and the tool converts it to pound-force inches. It offers 5 torque units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one: Newton meter, Pound-force inch, Pound-force foot, Ounce-force inch, Kilogram-force centimeter. Starts as Newton meter.
  • To: Choose one of the same 5 units as "From". Starts as Pound-force inch.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from newton meters to pound-force inches:

  • 1 N·m ≈ 8.850746 lbf·in
  • 5 N·m ≈ 44.253729 lbf·in
  • 10 N·m ≈ 88.507458 lbf·in
  • 50 N·m ≈ 442.53729 lbf·in
  • 100 N·m ≈ 885.074579 lbf·in

Multiply the number of newton meters by about 8.850746 to get pound-force inches. The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.

Sources: Newton meter: SI Brochure, 9th edition (2019). Pound-force inch: exact by definition.

Limitations

  • Converts a torque value from one unit to another. It does not work out the torque a bolt, engine or motor needs.
  • Always check the torque in the manufacturer's specification, and note which unit it is written in.

FAQs

Q: How many inch-pounds is one newton meter?
A: One newton meter is about 8.851 inch-pounds. Multiply newton meters by 8.851 for a close figure, or enter the value above for the full result.
Q: Which inch-pound does this use?
A: The pound-force inch (lbf·in), the inch-pound used in torque specifications.

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