🔧 Mechanical Torque & Rotational Moment
Torque & Rotational Moment Converter
Convert rotational torque ($\tau = r \times F$) between Newton-meters ($\text{N}\cdot\text{m}$), Foot-pounds ($\text{lbf}\cdot\text{ft}$), Inch-pounds ($\text{lbf}\cdot\text{in}$), and kilogram-force meters ($\text{kgf}\cdot\text{m}$).
🚗 Wheel Lug Nuts (110 lbf·ft)
⚡ Spark Plug (25 N·m)
🏎️ V6 Engine (350 N·m)
🚛 Heavy Diesel (2,000 N·m)
💻 Electronics M3 (35 lbf·in)
Input Torque
Standard Imperial Torque (ft-lb)
73.76 lbf·ft
Newton-meters
100.0 N·m
Inch-pounds
885.1 lbf·in
kgf·m
10.20 kgf·m
💡 Torque Relationship:
100 N·m = 73.76 lbf·ft = 885.07 lbf·in = 10.20 kgf·m = 0.10 kN·m
Understanding Torque & Moment of Force
Torque ($\tau$) measures the rotational effectiveness of a force applied at a radial distance from a pivot axis:
- Definition: $$\vec{\tau} = \vec{r} \times \vec{F} = r \cdot F \sin\theta$$
- SI Standard: Newton-meter ($\text{N}\cdot\text{m}$).
- US Customary Standard: Foot-pound force ($\text{lbf}\cdot\text{ft}$, often colloquially written as $\text{ft-lb}$).
- Conversion: $1\text{ lbf}\cdot\text{ft} = 1.355818\text{ N}\cdot\text{m} = 12\text{ lbf}\cdot\text{in}$.