Pound-force foot to Pound-force inch Converter
Enter the value that you want to convert pound-force foot (lbf*ft) to pound-force inch (lbf*in) or pound-force inch to pound-force foot.Also written as LBF*FT to LBF*IN conversion.
1 pound-force foot = 12.0000027 pound-force inch
Formula: pound-force inch = pound-force foot value × 12.0000027
LBF*FT to LBF*IN — pound-force foot to pound-force inch
10 pound-force foot = 120.00003 pound-force inch
Popular Torque Converters:
Converting Pound-force foot to Pound-force inch
About the Pound-force foot
Pound-force foot (lbf*ft) is a unit of torque measurement. 1 pound-force foot is equal to 12.0000027 pound-force inch.
The Pound-force inch in Engineering
Pound-force inch (lbf*in) is a unit of torque measurement. 1 pound-force inch is equal to 0.0833333 pound-force foot.
Torque Units in Mechanical Engineering
Torque appears in newton-meters (SI), pound-force feet (US automotive), kilogram-force meters (some Asian specifications), and ounce-force inches (small fasteners). Every bolt torque specification, engine output curve, and electric motor datasheet requires understanding the correct unit. Cross-referencing between American and European automotive repair manuals is a daily conversion task for mechanics.
pound-force foot to pound-force inch metric conversion table
| 0.01 lbf*ft | = | 0.12000 lbf*in |
| 0.1 lbf*ft | = | 1.20000 lbf*in |
| 1 lbf*ft | = | 12.00000 lbf*in |
| 2 lbf*ft | = | 24.00001 lbf*in |
| 3 lbf*ft | = | 36.00001 lbf*in |
| 4 lbf*ft | = | 48.00001 lbf*in |
| 5 lbf*ft | = | 60.00001 lbf*in |
| 6 lbf*ft | = | 72.00002 lbf*in |
| 7 lbf*ft | = | 84.00002 lbf*in |
| 8 lbf*ft | = | 96.00002 lbf*in |
| 9 lbf*ft | = | 108.00002 lbf*in |
| 10 lbf*ft | = | 120.00003 lbf*in |
| 11 lbf*ft | = | 132.00003 lbf*in |
| 12 lbf*ft | = | 144.00003 lbf*in |
| 13 lbf*ft | = | 156.00003 lbf*in |
| 14 lbf*ft | = | 168.00004 lbf*in |
| 15 lbf*ft | = | 180.00004 lbf*in |
| 16 lbf*ft | = | 192.00004 lbf*in |
| 17 lbf*ft | = | 204.00005 lbf*in |
| 18 lbf*ft | = | 216.00005 lbf*in |
| 19 lbf*ft | = | 228.00005 lbf*in |
| 20 lbf*ft | = | 240.00005 lbf*in |
| 30 lbf*ft | = | 360.00008 lbf*in |
| 40 lbf*ft | = | 480.00011 lbf*in |
| 50 lbf*ft | = | 600.00013 lbf*in |
| 60 lbf*ft | = | 720.00016 lbf*in |
| 70 lbf*ft | = | 840.00019 lbf*in |
| 80 lbf*ft | = | 960.00021 lbf*in |
| 90 lbf*ft | = | 1080.00024 lbf*in |
| 100 lbf*ft | = | 1200.00027 lbf*in |
| 200 lbf*ft | = | 2400.00053 lbf*in |
| 300 lbf*ft | = | 3600.00080 lbf*in |
| 400 lbf*ft | = | 4800.00106 lbf*in |
| 500 lbf*ft | = | 6000.00133 lbf*in |
| 600 lbf*ft | = | 7200.00159 lbf*in |
| 700 lbf*ft | = | 8400.00186 lbf*in |
| 800 lbf*ft | = | 9600.00212 lbf*in |
| 900 lbf*ft | = | 10800.00239 lbf*in |
| 1000 lbf*ft | = | 12000.00266 lbf*in |
How to Convert LBF*FT to LBF*IN (Pound-force foot to Pound-force inch)?
We can convert pound-force foot to pound-force inch by using an example.
Example:
Convert 20 Pound-force foot to Pound-force inch?
We know 1 Pound-force foot = 12.0000027 pound-force inch; 1 Pound-force inch = 0.0833333 pound-force foot.
20 pound-force foot = ___lbf*in
20 × 12.0000027 = 240.00005 lbf*in (we know 1 pound-force foot = 12.0000027 pound-force inch)
Answer:
20 pound-force foot = 240.00005 pound-force inch
Pound-Force Feet to Pound-Force Inches: Imperial Torque Scaling
Converting between lbf·ft (pound-force feet) and lbf·in (pound-force inches) is simply a matter of the 12 inches per foot relationship. Since 1 foot = 12 inches, 1 lbf·ft = 12 lbf·in. This conversion is needed when switching between large and small torque wrench scales within the imperial system.
- Start with the torque in lbf·ft.
- Multiply by 12.
- The result is the torque in lbf·in.
- Example: 5 lbf·ft × 12 = 60 lbf·in.
lbf·ft to lbf·in Quick Reference
Common torque values showing both imperial scales:
| Pound-force foot | Pound-force inch |
|---|---|
| 1 lbf·ft | 12 lbf·in |
| 2 lbf·ft | 24 lbf·in |
| 5 lbf·ft | 60 lbf·in |
| 8 lbf·ft | 96 lbf·in |
| 10 lbf·ft | 120 lbf·in |
| 15 lbf·ft | 180 lbf·in |
| 20 lbf·ft | 240 lbf·in |
| 25 lbf·ft | 300 lbf·in |
Examples: lbf·ft to lbf·in
Question 1: A service manual specifies 7 lbf·ft for a sensor bolt. Your small wrench reads lbf·in. What setting?
Solution:
lbf·in = lbf·ft × 12
= 7 × 12
= 84 lbf·in
Answer: 7 lbf·ft = 84 lbf·in — set the inch-pound wrench to 84.
Question 2: A timing cover bolt requires 18 lbf·ft. Express in lbf·in.
Solution:
lbf·in = lbf·ft × 12
= 18 × 12
= 216 lbf·in
Answer: 18 lbf·ft = 216 lbf·in — at the upper range of most inch-pound wrenches.
Question 3: A throttle body bolt spec is 6.5 lbf·ft. Convert to lbf·in.
Solution:
lbf·in = lbf·ft × 12
= 6.5 × 12
= 78 lbf·in
Answer: 6.5 lbf·ft = 78 lbf·in for the throttle body mounting bolts.
Practice: lbf·ft to lbf·in
Try solving these on your own to test your understanding:
- Convert 3 lbf·ft to lbf·in. (Answer: 36 lbf·in)
- A screw needs 12 lbf·ft. Express in lbf·in. (Answer: 144 lbf·in)
- Convert 0.5 lbf·ft to lbf·in. (Answer: 6 lbf·in)
- A bolt spec is 9 lbf·ft. What is this in lbf·in? (Answer: 108 lbf·in)
- Convert 30 lbf·ft to lbf·in. (Answer: 360 lbf·in)
Choosing Between ft·lb and in·lb Torque Wrenches
Most mechanics own two torque wrenches: a 1/4" drive reading 20-200 lbf·in (for small fasteners below about 17 lbf·ft) and a 3/8" or 1/2" drive reading 10-150 lbf·ft (for larger bolts). The overlap zone around 10-20 lbf·ft / 120-240 lbf·in is where either tool works. For maximum accuracy, choose the wrench where your target value falls in the middle 80% of its range.
Common Mistakes When Reading Torque Specs
A frequent error: reading "89 in·lb" as "89 ft·lb" — a 12× over-torque that will snap bolts or strip threads. Another pitfall: confusing inch-ounces (ozf·in) with inch-pounds (lbf·in), which differ by 16×. Always verify the unit abbreviation carefully in service manuals, especially when working near the crossover point between ft·lb and in·lb specifications.
Key Takeaways
- 1 lbf·ft = 12 lbf·in (multiply by 12, just like feet to inches).
- Use lbf·in for small fasteners (below ~15 lbf·ft / 180 lbf·in).
- Most inch-pound torque wrenches read 20-200 lbf·in.
- Never confuse in·lb specs with ft·lb — a 12× error breaks components.
- The conversion is purely geometric (12 inches per foot).
Pound-force foot to Pound-force inch Conversion Formula
pound-force inch = pound-force foot × 12.0000027
1 pound-force foot = 12.0000027 pound-force inch
1 pound-force inch = 0.0833333 pound-force foot
Reverse: pound-force foot = pound-force inch × 0.0833333
Frequently Asked Questions
How many pound-force inch are in 1 pound-force foot?
There are 12.0000027 pound-force inch in 1 pound-force foot. To convert pound-force foot to pound-force inch, multiply the value by 12.0000027.
How do I convert pound-force foot to pound-force inch?
Multiply your pound-force foot value by 12.0000027 to get the equivalent in pound-force inch. For example, 5 pound-force foot = 5 × 12.0000027 = 60.00001 pound-force inch.
How do I convert pound-force inch to pound-force foot?
Multiply your pound-force inch value by 0.0833333 to get the equivalent in pound-force foot. Alternatively, divide by 12.0000027.
What is 10 pound-force foot in pound-force inch?
10 pound-force foot is equal to 120.00003 pound-force inch.
What is 100 pound-force foot in pound-force inch?
100 pound-force foot is equal to 1200.00027 pound-force inch.