Pound-force to Attonewton Conversion

Convert between Pound-force and Attonewton quickly and accurately.

lbf
aN

How to Convert Pound-force to Attonewton

Conversion Formula

1 lbf = 4E+18 aN
1 aN = 2E-19 lbf

Example

Convert 15 lbf to aN:

15 lbf = 15 × 4E+18 aN = 7E+19 aN

Unit Information

Learn about the force units you're converting between

Pound-force

lbf

Definition

Pound-force represents the gravitational force exerted on a mass of one pound under standard gravity conditions. It equals approximately 4.45 Newtons and is commonly used in engineering applications, particularly in the United States and other countries using imperial units.

History/Origin

Pound-force was widely used in engineering before the Newton became the standard SI unit. It provided an intuitive way to express forces in terms of familiar mass units. The unit was particularly popular in US engineering practices and remains in use in many applications.

Current Use

Still widely used in engineering applications, particularly in the United States. Common in mechanical engineering for torque specifications and in automotive applications. Used in material testing and in many industrial processes where the relationship to mass is important.

Multiplier

4.448

Offset

0

Attonewton

aN

Definition

An attonewton equals 10^-18 Newtons and represents an extremely small force unit used in precision applications. This unit is employed for describing forces in laboratory settings, precision instruments, and micro-measurements.

History/Origin

The attonewton was established as part of the metric system's decimal prefix system. The prefix "atto" (meaning 10^-18) was adopted in 1964. This unit provides a convenient way to express forces in the quintillionths of Newtons range.

Current Use

Used in laboratory settings for measuring extremely small forces, particularly in chemistry and physics experiments. Common in precision instruments and micro-measurements. Used in some engineering applications where extremely small force measurements are required.

Multiplier

1E-18

Offset

0

Pound-force to Attonewton Conversion Table

Pound-force [lbf] Attonewton [aN]
1 lbf 4E+18 aN
10 lbf 4E+19 aN
25 lbf 1E+20 aN
50 lbf 2E+20 aN
100 lbf 4E+20 aN
0 lbf 0E+0 aN
-10 lbf -4E+19 aN
-40 lbf -2E+20 aN