Calc

# Calculating Weight Of Plastic Parts

I am trying to find the proper way to convert mass property information taken from 3d CAD models of plastic parts and generate the wieght of the part. I can easily get the mass of the model (in grams) and the volume of the model in cubic millimeters. I am looking for formula(s) to take this info and convert it into the part weight in grams. I do have available to me the specific gravity of various types of plastic material and I believe that this will have to be a part of that formula.

Follow-up responses...

## Formula!

posted by Rick:

first, your 3d cad program should let you set the property values and automatically calculate the part weight.

If not, here is the formula I use:

volume in cc3 / 16.287 (constant) X specific gravity of material (constant) X .0361 (constant) X 454 (constant to convert to grams)

This will give you weight in grams.

## Formula

Plz give us with example.

## Convert Volume To Weight

posted by Harper Zarker:

I have a question on the formulation for converting 5.44 in^3 to oz

## Calculation Formula For Plastic

posted by Prabhakar Aswar:

How to calculate the weight of plastic parts theoritically from drawing of parts.

## Alternate Material In Mold Design

posted by Prabhakar Aswar:

Can we use Mold Steel D3 instead of hot Die Steel for Al Die Casting Mold Inserts in Mold Design? What will be Total Cost Impact! Decrease or Increase.

## PP To HDPE Conversion

Can any body tell me that if i made 1 plastis product in material PP injection and then the same product in HDPE injection so what will be the weight Difference

## Therotical Weight Of Plastic Compo.

posted by ganesh wagh:

How to calculate the weight of plastic parts theoritically from drawing of parts.of various plastic material like pp,minlon,abs.etc

## Calculate Plastic Part Weight

posted by David Hodge:

cu. in. x specific gravity x .0361= wt. in lbs. x 454=grams / 28.35= oz.

## I Want A Simple Weight Calculator

posted by avinash:

ples tell me how to calculate a weight of plastic part & i have sample of plastic part & their drwings so how to calculate a weight of these part

## Alloable Wastage

posted by donya:

hello,
i would like to find the relation between the allowable wastage of injected plastic fragments and the fragments dimensions , fragment weights and fragments shape.
for example a smaller fragment is less possible to brake when transferring than a big one.
although a fragment which has a complex shape is more possible to brake than a simple shaped fragment when transferring.
I thought there might be a formula or a table which can tell me the universal standards for this .
thank you very much