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Converted Torque
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Scientific Form: –
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📘 Overview: Convert Torque Units Accurately
Torque (also called moment of force) measures the rotational force applied to an object. It's a critical concept in engineering, automotive mechanics, construction, robotics, and physics. This converter helps you convert between a wide range of torque units, from Newton-metres (N·m) to pound-force-inches (lbf·in), kilogram-force-metres (kgf·m), and beyond.
Basic Mode supports the most commonly used units:
- 🔹 Newton-metre (N·m)
- 🔹 Pound-force-foot (lbf·ft)
- 🔹 Kilogram-force-metre (kgf·m)
- 🔹 Pound-force-inch (lbf·in)
- 🔹 Poundal-foot (pdl·ft)
Advanced Mode includes specialized units such as:
- 📐 Kilogram-force-centimetre (kgf·cm)
- 📐 Dyne-centimetre (dyn·cm)
- 📐 Ounce-force-inch (ozf·in)
- 📐 Kilogram-force-millimetre (kgf·mm)
Switch between modes to view only the units relevant to your field.
📐 Formula & Methodology
All torque conversions are calculated by converting through the SI base unit Newton-metre (N·m). This ensures consistency across all systems.
- Multiply your input value by the factor to convert to N·m.
- Divide the N·m result by the factor for the target unit.
📊 Conversion Table (to N·m)
| Unit | Symbol | Factor → N·m | Notes |
|---|---|---|---|
| Newton-metre | N·m | 1 | SI base unit |
| Pound-force-foot | lbf·ft | 1.3558179 | Common in mechanical systems |
| Kilogram-force-metre | kgf·m | 9.80665 | Used in metric torque specs |
| Pound-force-inch | lbf·in | 0.1129848 | Smaller US unit |
| Poundal-foot | pdl·ft | 0.0421401 | Obsolete imperial unit |
| Kilogram-force-centimetre | kgf·cm | 0.0980665 | Used in precision devices |
| Dyne-centimetre | dyn·cm | 1e-7 | CGS unit for tiny torques |
| Ounce-force-inch | ozf·in | 0.00706155 | Used in small mechanics |
| Kilogram-force-millimetre | kgf·mm | 0.00980665 | Used in robotics/assembly |
🧪 Example Conversions
- Convert 5 lbf·ft to N·m:
5 × 1.3558179 = 6.7791 N·m - Convert 20 N·m to lbf·in:
20 ÷ 0.1129848 ≈ 177.14 lbf·in - Convert 50 kgf·m to lbf·ft:
50 × 9.80665 = 490.3325 N·m → ÷ 1.3558179 = 361.70 lbf·ft - Convert 100 ozf·in to N·m (Advanced):
100 × 0.00706155 = 0.7062 N·m - Convert 150 kgf·mm to lbf·in (Advanced):
150 × 0.00980665 = 1.47099 N·m → ÷ 0.1129848 = 13.02 lbf·in
💡 Real-World Applications
- 🔩 Automotive engineers converting torque specs between N·m and lbf·ft
- 🛠️ DIY mechanics adjusting fasteners using torque wrenches
- 📐 Mechanical engineers designing rotating systems
- 🧬 Scientists using dyn·cm in laboratory instruments
- 🤖 Robotics developers working with torque-controlled servos
❓ Frequently Asked Questions
What is torque?
Torque is the measure of rotational force applied at a distance from a pivot point. It determines how much an object will rotate under force. The SI unit is Newton-metre (N·m).
How do I convert lbf·ft to N·m?
Multiply the value in lbf·ft by 1.3558179 to get N·m.
Why is N·m used as the base unit?
Newton-metre is the internationally recognized SI unit. It aligns with other metric units like mass (kg) and acceleration (m/s²).
What’s the difference between lbf·ft and lbf·in?
They differ by a factor of 12. 1 lbf·ft = 12 lbf·in. Use inches for smaller torques, feet for larger ones.
What is ozf·in used for?
Ounce-force-inch is used in smaller mechanical devices like RC cars, household gadgets, and small electric motors.
Is this converter suitable for high-precision work?
Yes. The tool uses accurate constants and displays results to multiple decimal places. For extreme precision, verify significant digits.
Can I use this on mobile devices?
Yes! The converter is mobile-responsive and adjusts smoothly to small screens. Toggle Basic/Advanced mode to customize the interface.