If a torque limit is 45 ft-lbs, what is the equivalent torque value in in-lbs?

If a torque limit is 45 ft-lbs, what is the equivalent torque value in in-lbs?

• A. 540 in-lbs
• B. 225 in-lbs
• C. 5400 in-lbs
• D. 360 in-lbs

Answer: (A)

Torque is often expressed in either foot-pounds or inch-pounds, and the relationship between the two is simply counting inches in a foot. There are 12 inches in each foot, so to convert from ft-lbs to in-lbs you multiply by 12. For 45 ft-lbs, that becomes 45 × 12 = 540 in-lbs. So the equivalent torque is 540 in-lbs. The other numbers come from using wrong multipliers (for example, multiplying by 5, 8, or 120 would not reflect the 12 inches per foot).

Torque is often expressed in either foot-pounds or inch-pounds, and the relationship between the two is simply counting inches in a foot. There are 12 inches in each foot, so to convert from ft-lbs to in-lbs you multiply by 12. For 45 ft-lbs, that becomes 45 × 12 = 540 in-lbs. So the equivalent torque is 540 in-lbs. The other numbers come from using wrong multipliers (for example, multiplying by 5, 8, or 120 would not reflect the 12 inches per foot).