Torque Converter
指导
Torque Converter
Convert torque values between 10 different units instantly. Enter a value in any unit and see all equivalents update simultaneously across SI, metric, and imperial groups. Covers Newton-meters, kilonewton-meters, kilogram-force meters, pound-force feet, and more. Includes a reference table of common torque specifications for automotive, bicycle, and industrial applications.
如何使用
Enter a torque value in any of the 10 supported units. All other units update instantly as you type. Use the category tabs to focus on SI, metric, or imperial units. Adjust the decimal precision to control how many decimal places are displayed. Click any individual value to copy it, or copy all conversions at once. Check the reference table for common real-world torque specifications.
特征
- 10 Torque Units – Newton-meter, kilonewton-meter, newton-centimeter, dyne-centimeter, kilogram-force meter, kilogram-force centimeter, pound-force foot, pound-force inch, ounce-force foot, and ounce-force inch
- All Units Simultaneously – Every unit updates in real time as you type in any field
- Category Grouping – Units organized into SI, Metric, and Imperial tabs for easy navigation
- 参考表 – Common torque specs for car lug nuts, spark plugs, bicycle components, and industrial fasteners
- Configurable Precision – Set decimal places from 0 to 10 for the level of accuracy you need
- Copy Values – Copy individual conversions or all results at once to your clipboard
常问问题
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What is torque and how is it measured?
Torque is a measure of rotational force applied to an object around an axis. It equals the force multiplied by the distance from the axis of rotation (the lever arm). The SI unit is the Newton-meter (N·m), which represents one Newton of force applied at one meter from the pivot point. In imperial systems, pound-force feet (lbf·ft) is the most common unit. Torque is critical in mechanical engineering, automotive work, and any application involving fasteners or rotating machinery.
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What is the difference between Newton-meters and kilogram-force meters?
Newton-meters (N·m) use the SI unit of force (Newtons), while kilogram-force meters (kgf·m) use the gravitational force on one kilogram as the force unit. One kilogram-force equals 9.80665 Newtons (standard gravity), so 1 kgf·m equals 9.80665 N·m. Newton-meters are the standard in modern engineering and scientific work, while kilogram-force meters are still found in older specifications and some regional standards.
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How do I convert pound-force feet to Newton-meters?
To convert pound-force feet (lbf·ft) to Newton-meters (N·m), multiply by 1.3558179483. For example, 100 lbf·ft equals approximately 135.58 N·m. This conversion is commonly needed when working with American automotive specifications in metric workshops, or vice versa. The conversion factor comes from the exact definitions: one pound-force is 4.4482216 Newtons, and one foot is 0.3048 meters.
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Why is correct torque important for fasteners?
Applying the correct torque to fasteners ensures they are tight enough to hold securely but not so tight that they strip threads, crack components, or cause material fatigue. Under-torquing can lead to loose connections that vibrate apart, while over-torquing can stretch bolts beyond their elastic limit, causing failure. Critical applications like automotive wheel lug nuts, engine head bolts, and structural connections all have precise torque specifications that must be followed.
