Inch Pounds to Foot Pounds Converter

What Are Inch-Pounds and Foot-Pounds?

Inch-pounds (in·lb) and foot-pounds (ft·lb) are imperial units used to measure torque and, in some contexts, work or energy. An inch-pound is the torque produced by one pound of force applied at a lever arm one inch long. A foot-pound uses a one-foot lever arm instead. Both appear in automotive specs, machinery manuals, and physics problems.

How to Convert Inch-Pounds to Foot-Pounds

Because one foot contains 12 inches, the conversion is straightforward:

$$ft\cdot lb = \frac{in\cdot lb}{12}$$

To convert foot-pounds back to inch-pounds:

$$in\cdot lb = ft\cdot lb \times 12$$

Worked Examples

• 24 in·lb ÷ 12 = 2 ft·lb
• 89 in·lb ÷ 12 = 7.417 ft·lb
• 2 ft·lb × 12 = 24 in·lb
• 7.5 ft·lb × 12 = 90 in·lb

Practical Applications

Small fasteners and delicate components often list torque in inch-pounds, while larger bolts and structural work use foot-pounds. Converting between them ensures your torque wrench is set correctly. For metric torque values, use the Inch Lbs to Nm Converter. For computing torque from force and distance, try the Torque Calculator.