What is a force converter?

A force converter helps you convert between different units of force quickly and accurately.

How do I convert pound-force [lbf] to millinewton [mN]?

Simply enter the value in the pound-force [lbf] input field, and the converter will show you the equivalent value in millinewton [mN] instantly.

Yes, this force converter is completely free and easy to use for all your conversion needs.

Yes, there is a switch button provided to quickly swap the conversion direction between pound-force [lbf] and millinewton [mN].

The conversion results are calculated using precise formulas to ensure accuracy for most practical purposes.

Pound-Force [lbf]

Pound-force (lbf) is a unit of force commonly used in the United States and some other countries using the Imperial system.

It is defined as the force exerted by gravity on a mass of one pound (lb) under standard Earth gravity.
Mathematically:

1 \text{ lbf} = 1 \text{ lb} \times 9.80665 \text{ m/s}^2 \approx 4.44822 \text{ newtons}

Pound-force is widely used in engineering, mechanics, and everyday contexts in countries that use Imperial or US customary units.
It measures force similarly to how newtons do in the metric system but based on pounds instead of kilograms.

Millinewton [mN]

Millinewton is a small unit of force in the International System of Units (SI).

1 millinewton (mN) equals $10^{-3}$ newtons (0.001 newton).
It is commonly used to measure very small forces, such as in microengineering, delicate instrumentation, or biomechanical applications.
To put it in perspective: