Convert Newton-meters to foot-pounds, inch-pounds, kgf·m, and more. Includes automotive torque specs and real-world torque references.
The Newton-meter torque converter provides instant bidirectional conversion between all common torque units used in automotive, manufacturing, and engineering applications. Newton-meters (N·m) are the SI standard for torque, while foot-pounds (ft·lbf) dominate in US automotive and industrial contexts.
This calculator converts between Newton-meters, foot-pounds, inch-pounds, kilogram-force meters, kilogram-force centimeters, deci-Newton meters, and ounce-force inches. It includes a visual torque scale showing where your value falls relative to common real-world torques, a comprehensive conversion table, and an automotive torque specification reference.
Whether you are tightening lug nuts to manufacturer specifications, converting a European repair manual to US units, or comparing torque wrench settings, this tool provides the accuracy and context you need. It is built for mechanics, technicians, and engineers who must avoid costly torque mistakes across mixed-unit documentation. Clear torque translation supports safer assembly, better compliance with OEM specs, and fewer callbacks after maintenance in both professional garages and field service environments.
Incorrect torque application can strip threads, crack parts, or leave fasteners dangerously loose. Automotive manuals from different regions use different units — European specs in N·m, American in ft·lbs. This converter ensures you apply the correct torque regardless of which unit your manual or wrench uses. It helps reduce rework, improves safety, and supports consistent maintenance quality across teams and service locations.
Newton-Meter Conversion: 1 N·m = 0.7376 ft·lbf = 8.8507 in·lbf = 0.10197 kgf·m = 10.197 kgf·cm. Key factor: 1 ft·lbf = 1.35582 N·m. All conversions route through N·m as the base unit.
Result: 81.1 ft·lbf, 973.6 in·lbf
110 N·m (typical wheel lug nut torque) equals 81.1 ft·lbf. Calculated as: 110 ÷ 1.35582 = 81.1 ft·lbf.
Torque is the rotational equivalent of linear force. The SI unit Newton-meter (N·m) represents the torque from 1 Newton of force applied at 1 meter from the pivot. In the imperial system, foot-pound force (ft·lbf) represents 1 pound of force at 1 foot from the pivot. Both measure the same physical quantity using different unit systems, with 1 ft·lbf = 1.35582 N·m.
Proper torque application is critical for vehicle safety and longevity. Under-torqued wheel lug nuts can loosen and cause wheel separation. Over-torqued spark plugs can crack the cylinder head. Oil drain plugs stripped from excessive torque are one of the most common DIY oil change mistakes. A calibrated torque wrench and correct unit conversion are essential tools.
Torque wrenches come calibrated in either N·m, ft·lbf, or both. Click-type wrenches are set to a specific value and click when reached. Digital wrenches display current torque in multiple units. Beam-type wrenches show torque on a scale. Regardless of type, regular calibration (annually or every 5,000 cycles) is required for accuracy.
Divide the N·m value by 1.35582 to get ft·lbf. For example, 100 N·m ÷ 1.35582 = 73.76 ft·lbf. For quick mental math, multiply N·m by 0.74.
Multiply the ft·lbf value by 1.35582 to get N·m. For example, 80 ft·lbf × 1.35582 = 108.5 N·m. Quick estimate: multiply ft·lbf by 1.36.
Most passenger cars specify 80-100 ft·lbf (108-135 N·m) for standard lug nuts. Light trucks may be 120-140 ft·lbf (163-190 N·m). Always check your vehicle owner manual for the exact specification.
Both have units of kg·m²/s², but they measure different things. Newton-meter measures torque (rotational force), while joule measures energy. Numerically, 1 N·m of torque through 1 radian of rotation does 1 J of work.
European manufacturers specify torque in Newton-meters (N·m). US repair manuals often convert these to foot-pounds (ft·lbf). Japanese manufacturers may use kgf·m or N·m. Always verify the unit on your torque wrench matches the specification.
Torque alone cannot be converted to horsepower — you also need RPM. The formula is: HP = Torque(ft·lbf) × RPM ÷ 5252, or Power(W) = Torque(N·m) × angular velocity(rad/s).