lbf·ft to lbf·in Converter
Quick answer: To convert lbf·ft to lbf·in, multiply by 12. For example, 10 lbf·ft is 120 lbf·in. One pound-force foot equals 12 lbf·in.
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Use the lbf·ft to lbf·in Converter
lbf·ft to lbf·in formula and what each symbol means
lbf·in = lbf·ft × 12
| Symbol | Meaning |
|---|---|
| lbf·ft | Pound-force foot |
| lbf·in | Pound-force inch |
lbf·ft to lbf·in examples
1 lbf·ft
1 lbf·ft × 12 = 12 lbf·in.
10 lbf·ft
10 lbf·ft × 12 = 120 lbf·in.
100 lbf·ft
100 lbf·ft × 12 = 1,200 lbf·in.
lbf·ft compared with lbf·in
One lbf·ft is 12 times as large as one lbf·in, so your number gets bigger when you convert lbf·ft to lbf·in and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About lbf·ft and lbf·in
Pound-force foot (lbf·ft): Torque from one pound-force at one foot, about 1.35582 N·m. Pound-force inch (lbf·in): One twelfth of a pound-force foot.
Where lbf·ft to lbf·in conversions are used
Bolt tightening specs are given in N·m, lbf·ft or lbf·in. Electric motors and gearboxes list rated and peak torque.
How to calculate lbf·ft to lbf·in step by step
- Enter the value in lbf·ft (the starting unit).
- Multiply by 12, because 1 lbf·ft = 12 lbf·in.
- The product is the value in lbf·in. To go back, divide by 12 or multiply by 0.08333333.
Popular torque conversions
How to read your lbf·ft to lbf·in result
One newton metre is the torque from 1 N acting 1 m from the axis.
| LBF·FT | LBF·IN |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 5 | 60 |
| 10 | 120 |
| 20 | 240 |
| 50 | 600 |
| 100 | 1,200 |
| 1,000 | 12,000 |
lbf·in to lbf·ft: quick table
| LBF·IN | LBF·FT |
|---|---|
| 1 | 0.08333333 |
| 5 | 0.4166667 |
| 10 | 0.8333333 |
| 25 | 2.083333 |
| 50 | 4.166667 |
| 100 | 8.333333 |
| 250 | 20.83333 |
| 500 | 41.66667 |
Common mistakes when calculating lbf·ft to lbf·in
- Mixing lbf·in and lbf·ft: a factor of 12.
- Dividing when you should multiply: from lbf·ft to lbf·in multiply by 12; from lbf·in to lbf·ft divide by 12.
lbf·ft to lbf·in FAQ
How many lbf·in are in 1 lbf·ft?
1 lbf·ft equals 12 lbf·in.
How many lbf·ft are in 1 lbf·in?
1 lbf·in equals 0.08333333 lbf·ft.
Is 1 lbf·ft = 12 lbf·in an exact conversion?
The factor is shown rounded to 7 significant figures (12). The calculator above uses more digits.
What is a pound-force inch (lbf·in)?
One twelfth of a pound-force foot.
How can I estimate lbf·ft to lbf·in in my head?
One lbf·ft is 12 times as large as one lbf·in, so your number gets bigger when you convert lbf·ft to lbf·in and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
What is 75 lbf·ft in lbf·in?
75 lbf·ft = 900 lbf·in (since 75 × 12).
What is 300 lbf·ft in lbf·in?
300 lbf·ft = 3,600 lbf·in (since 300 × 12).
What is 12 lbf·ft in lbf·in?
12 lbf·ft = 144 lbf·in (since 12 × 12).
How many decimals should I keep when converting lbf·ft to lbf·in?
Match the precision of your original measurement. For example, 120 lbf·in rounds to 120 lbf·in at 3 significant figures; keep more digits only for engineering or scientific work.
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors