What is a force converter?

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

How do I convert poundal [pdl] to attonewton [aN]?

Simply enter the value in the poundal [pdl] input field, and the converter will show you the equivalent value in attonewton [aN] 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 poundal [pdl] and attonewton [aN].

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

Poundal [pdl]

The poundal is a unit of force in the foot-pound-second (FPS) system, mainly used in the United States.

It is defined as the force required to accelerate a one-pound mass by one foot per second squared.
Mathematically:

1 \text{ pdl} = 1 \text{ lb} \times 1 \text{ ft/s}^2 = 0.138255 \text{ newtons}

The poundal is smaller than the pound-force since Earth's gravity accelerates a pound mass at approximately 32.174 ft/s², making:

1 \text{ lbf} = 32.174 \text{ pdl}

It is mostly of historical interest and rarely used in modern engineering but can appear in classical mechanics problems using the FPS system.

Attonewton [aN]

Attonewton is an extraordinarily small unit of force in the International System of Units (SI).

1 attonewton (aN) equals $10^{-18}$ newtons (0.000000000000000001 newton).
It is used in highly specialized fields such as quantum physics, nanotechnology, and advanced experimental research where forces are incredibly minute.
To put it in perspective: