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Nylon Weight Calculator

Calculate nylon weight instantly from dimensions and type. Get accurate results for Nylon 6, Nylon 66, sheets, rods, and tubes with density-based formulas.

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Frequently Asked Questions

Common questions about nylon weight.

Nylon density varies by type: Nylon 6 is typically 1.12-1.14 g/cm³, Nylon 66 is 1.13-1.15 g/cm³, and cast nylon runs 1.15-1.16 g/cm³. These slight differences affect weight calculations, especially for larger parts.

Multiply length × width × thickness to get volume, convert to cubic centimeters, then multiply by nylon's density (usually 1.14 g/cm³) to get grams. Divide by 453.6 to convert to pounds.

Nylon 66 is slightly heavier with a density around 1.14 g/cm³ compared to Nylon 6 at 1.13 g/cm³. The difference is minimal—about 1%—so for most applications the weights are practically identical.

Weight affects load calculations, shipping costs, part inertia in moving assemblies, and material costs. Knowing precise nylon weights helps engineers optimize designs and accurately estimate project expenses.

Yes, nylon is hygroscopic and can absorb 2-3% of its weight in moisture from air, with up to 8-10% when submerged. This affects both weight and dimensions, so dry-as-molded specs differ from equilibrium conditions.

How to Calculate

To calculate nylon weight, first determine the volume of your part by measuring its dimensions (length × width × thickness for sheets, or using geometric formulas for rods and tubes). Convert all measurements to centimeters, calculate volume in cm³, then multiply by nylon's density (typically 1.14 g/cm³ for Nylon 6). The formula is: **Weight (g) = Volume (cm³) × Density (g/cm³)**. Convert to pounds by dividing grams by 453.6, or to kilograms by dividing by 1000.

Formula & Method

Weight = Volume × Density

For rectangular sheets: Volume = Length × Width × Thickness
For rods: Volume = π × (Diameter/2)² × Length
For tubes: Volume = π × [(OD/2)² - (ID/2)²] × Length

Standard densities: Nylon 6 = 1.14 g/cm³, Nylon 66 = 1.15 g/cm³, Cast Nylon = 1.16 g/cm³

Sources & References

http://www.matweb.com/search/DataSheet.aspx?MatGUID=39numerical67c08647421a98eabbdd088cad
https://www.engineeringtoolbox.com/nylon-properties-d_1941.html
https://www.curbellplastics.com/Research-Solutions/Technical-Resources/Technical-Resources/Nylon

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