Convert torque values between inch-pounds and newton-meters with support for foot-pounds and kilogram-force centimeters.
Torque is a measure of rotational force. It describes how strongly a force tends to rotate an object around a pivot point.
The basic relationship is τ = F × r, where F is force and r is the perpendicular distance from the pivot.
The SI unit of torque is the newton-meter (N·m). Imperial torque values are often expressed in inch-pounds (in·lbs) or foot-pounds (ft·lbs).
Example 1: Convert 100 inch-pounds to newton-meters
Step 1: Use the formula
Step 2: Substitute the value
Example 2: Convert 10 newton-meters to inch-pounds
Step 1: Use the reverse formula
Step 2: Substitute the value
| in·lbs | N·m | in·lbs | |
|---|---|---|---|
| 1 | → | 0.112985 | 8.850746 |
| 5 | → | 0.564924 | 44.253729 |
| 10 | → | 1.129848 | 88.507458 |
| 25 | → | 2.824621 | 221.268645 |
| 50 | → | 5.649241 | 442.53729 |
| 100 | → | 11.298483 | 885.074579 |
| 200 | → | 22.596966 | 1,770.149158 |
| 500 | → | 56.492415 | 4,425.372896 |
| 1000 | → | 112.984829 | 8,850.745791 |
Force is a straight-line push or pull. Torque is rotational force and depends on both the force applied and the distance from the pivot point.
Inch-pounds are commonly used for smaller fasteners and precision work. Foot-pounds are more common for larger fasteners such as automotive and heavy equipment applications.
Torque wrenches can drift over time because of spring wear, repeated use, and storage conditions. Calibration helps keep readings accurate.
No. Lubrication changes the relationship between torque and clamping force. Always follow the manufacturer’s specification for the exact condition described.
Kilogram-force centimeter is another torque unit sometimes found in older or regional specifications. This converter includes it as a secondary reference output.
Required precision depends on the tool, fastener, and application. Safety-critical assemblies usually require tighter control than general-purpose fastening.
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