Enter the filament mass  (g), the density (g/cm^3), and the cross-sectional area (cm^2) into the Filament Length Calculator. The calculator will evaluate the Filament Length.

## Filament Length Formula

The following formula is used to calculate the Filament Length.

FL = M / D / A

• Where FL is the Filament Length (cm)
• M is the filament mass (g)
• D is the density (g/cm^3)
• A is the cross-sectional area (cm^2)

## How to Calculate Filament Length?

The following two example problems outline the steps and information needed to calculate the Filament Length.

Example Problem #1

1. First, determine the filament mass  (g).
• The filament mass  (g) is calculated to be : 40.
2. Next, determine the density (g/cm^3).
• The density (g/cm^3) is measured to be: 20.
3. Next, determine the cross-sectional area (cm^2).
• The cross-sectional area (cm^2) is found to be: 2.
4. Finally, calculate the Filament Length using the formula above:

FL = M / D / A

The values provided above are inserted into the equation below and computed.

FL = 40 / 20 / 2 = 1 (cm)

Example Problem #2

The variables required for this problem are provided below:

filament mass  (g) = 50

density (g/cm^3) = 30

cross-sectional area (cm^2) = 5