lb-ft to lb-in | Exact Decimal + Formula

1 Pound-foot = 12 Pound-inch

One pound-foot equals exactly 12 pound-inches — a fixed ratio you can memorize. Real-world use: vehicle lug nuts and bolt torque specs in the US. This page expresses those values in pound-inches, which is used for small fasteners, electronics assemblies, and fine torque adjustments. Type a value above for an instant answer; the exact formula and the reference table are below.

About Pound-foot and Pound-inch

Pound-foot (lb·ft)

A pound-foot is the torque from one pound of force at a one-foot lever arm, about 1.3558 newton-meters.

Where it's used: Vehicle lug nuts and bolt torque specs in the US.

Pound-inch (lb·in)

A pound-inch is one-twelfth of a pound-foot, about 0.113 newton-meters.

Where it's used: Small fasteners, electronics assemblies, and fine torque adjustments.

Torque Converter

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Precision

Formula

lb·in = lb·ft × 12

To convert Pound-foot to Pound-inch, use the formula displayed above.

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Pound-foot to Pound-inch: Quick Reference Table

Pound-foot	Pound-inch (Decimal)	Fraction	Real-world equivalent
0.001 lb·ft	0.012 lb·in	-	fractional unit measurement
0.01 lb·ft	0.12 lb·in	-	fractional unit measurement
0.1 lb·ft	1.2 lb·in	-	standard single unit scale
0.5 lb·ft	6 lb·in	-	standard single unit scale
1 lb·ft	12 lb·in	-	multiple unit increments
2 lb·ft	24 lb·in	-	multiple unit increments
5 lb·ft	60 lb·in	-	multiple unit increments
10 lb·ft	120 lb·in	-	multiple unit increments
25 lb·ft	300 lb·in	-	multiple unit increments
50 lb·ft	600 lb·in	-	multiple unit increments
100 lb·ft	1200 lb·in	-	multiple unit increments
250 lb·ft	3000 lb·in	-	multiple unit increments
500 lb·ft	6000 lb·in	-	multiple unit increments
1000 lb·ft	12000 lb·in	-	multiple unit increments

lb·ft to lb·in Formula and Examples

Direct Formula lb·in = lb·ft × 12

Inverse Formula lb·ft = lb·in × 0.083333

Mental Math Shortcut

Multiply the value by roughly 12 to calculate the equivalent amount in your head.

Common Pound-foot to Pound-inch Calculations

5 lb·ft = 60 lb·in
10 lb·ft = 120 lb·in
50 lb·ft = 600 lb·in
100 lb·ft = 1200 lb·in
500 lb·ft = 6000 lb·in

Precision & Practical Use

For example, 10 lb·ft = 120 lb·in — roughly multiple unit increments.

Fastener torque specs are usually quoted to whole or half units (N·m or lb-ft). Use a calibrated wrench and do not exceed the spec.

Related Specialist Torque Calculators & Niche Tools

Torque represents the rotational force applied to fasteners, typically measured in foot-pounds (ft-lb), inch-pounds (in-lb), or Newton-meters (N·m). Selecting and converting the correct torque values is crucial in mechanical assembly and vehicle servicing.

An accurate torque conversion guarantees components are tightened according to tight manufacturer tolerances. Bolt torque specification calculators cross-reference fastener sizing and grades (such as Grade 5, Grade 8, or Metric 10.9) to determine safe tension levels without stripping threads. Our specialized torque calculators convert rotational forces and help mechanics apply the correct clamping pressure to engine bolts and wheel lugs.

Torque ft-lb to Nm Convert torque forces. Bolt Torque Specs Look up fastener grade torque specs.

How to Convert Pound-foot to Pound-inch

How many pound-inches are in one pound-foot?

One Pound-foot (lb·ft) equals 12 Pound-inch (lb·in). To convert pound-foots to pound-inches, multiply the pound-foot value by 12.

How do I convert Pound-foot to Pound-inch?

Multiply your pound-foot value by 12 to get the result in Pound-inch: lb·in = lb·ft × 12. For example, 5 lb·ft = 60 lb·in.

What is the formula for converting lb·ft to lb·in?

The conversion formula is lb·in = lb·ft × 12. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for lb·ft to lb·in?