What this tool does
Convert torque from inch-pounds (lbf·in) to foot-pounds (lbf·ft), with newton meters and other torque units alongside. Type an amount in pound-force inches, choose the units, and the tool converts it to pound-force feet. It offers 5 torque units and also shows the same amount in the others.
Inputs
- Value: A number.
- From: Choose one: Pound-force inch, Pound-force foot, Ounce-force inch, Newton meter, Kilogram-force meter. Starts as Pound-force inch.
- To: Choose one of the same 5 units as "From". Starts as Pound-force foot.
How to use
- Enter the amount you want to convert.
- Choose the unit to convert from and the unit to convert to.
- 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 pound-force inches to pound-force feet:
- 1 lbf·in ≈ 0.0833333 lbf·ft
- 5 lbf·in ≈ 0.416667 lbf·ft
- 10 lbf·in ≈ 0.833333 lbf·ft
- 50 lbf·in ≈ 4.166667 lbf·ft
- 100 lbf·in ≈ 8.333333 lbf·ft
Multiply the number of pound-force inches by about 0.0833333 to get pound-force feet. The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.
Sources: Pound-force inch: exact by definition. Pound-force foot: 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.
- Small fasteners are often specified in inch-pounds and larger ones in foot-pounds. Check which unit your specification uses before you set a wrench.
- Foot-pounds of torque are not foot-pounds of energy. This page converts torque only.
- Always check the torque in the manufacturer's specification, and note which unit it is written in.
FAQs
- Q: How do I convert inch-pounds to foot-pounds?
- A: Divide by 12. A foot is 12 inches, so 12 inch-pounds make exactly 1 foot-pound.
- Q: Are inch-pounds the same as pound-force inches?
- A: Yes. This page uses the pound-force inch (lbf·in), the unit that torque specifications call an inch-pound (in-lb).
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