TorqueConversion Formulas & Examples
Pound-foot → Newton-meter
1 lb-ft = 1.3558 NmExample: 10 lb-ft = 13.5582 Nm
Newton-meter → Pound-foot
1 Nm = 0.73756 lb-ftExample: 10 Nm = 7.3756 lb-ft
Frequently Asked Questions
Q.Does the angle between the force and lever arm change the result?
Yes. The full formula is τ = r × F × sin(θ), so a 90° angle gives maximum torque while 0° produces zero rotational force regardless of magnitude.
Q.How do I convert Newton-meters to pound-feet accurately?
Multiply N·m by 0.73756 to get lb·ft. For reverse conversion, multiply lb·ft by 1.3558. Retain at least three significant figures in engineering contexts.
Q.What is the difference between torque and moment of force?
They refer to the same quantity, τ = r × F, but torque typically describes rotating systems like engines, while moment is used in structural and beam analysis.
Q.Can negative torque values appear in real calculations?
Yes. Negative values indicate direction reversal relative to a chosen reference axis, commonly seen in signed angular velocity and motor control equations.