ABS rod weight calculator
Enter the dimensions of a ABS rod and this works out its volume and weight. Acrylonitrile butadiene styrene, unfilled.
- Weight of one rod
- 0.510 509
- Volume of one piece
- 490.874
- Weight per metre of length
- 0.510 509 kg/m
- Density used
- 1040 kg/m3
Show the working
- Diameter = 25
- Length = 1000
- Number of pieces = 1
- volume_mm3 = pi * (25/2)^2 * 1000 = 490 874
- Volume of one piece = 490 874 / 1000 = 490.874
- Density used = 1040 = 1040
- Weight of one rod = 490 874 * 1040 / 1e9 = 0.510 509
- Total weight = 0.510 509 * 1 = 0.510 509
- Weight per metre of length = 490 874 / 1000 * 1000 * 1040 / 1e9 = 0.510 509
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
Scenarios & local history
Compare a saved scenario
Recent calculations
The formula
- Volume = pi x (diameter / 2)^2 x length
- Weight = volume x density, with density = 1040 kg/m3
- One cubic millimetre of a material at 1000 kg/m3 weighs exactly one milligram, so the millimetre-to-kilogram step is a shift of the decimal point rather than a rounded factor.
Acrylonitrile butadiene styrene, unfilled.
Dimensions are nominal. Mill tolerances on thickness, and the corner radii on formed sections, both move the real weight by a percent or two.
Every field takes inches or feet as readily as millimetres: change the unit next to it and the conversion is done exactly before the arithmetic starts.
Frequently asked
What is the density of ABS?
1040 kg/m3, which is 1.040 g/cm3. Acrylonitrile butadiene styrene, unfilled.
How do you calculate the weight of a ABS rod?
Volume = pi x (diameter / 2)^2 x length. Multiply the volume by the density of ABS, 1040 kg/m3, taking care that both are in the same unit system.
Can I enter dimensions in inches?
Yes. Each dimension field has its own unit selector, and inch, foot, millimetre, centimetre and metre entries are all converted exactly before anything is multiplied.
Where the numbers come from
- Densities are nominal room-temperature values for the grade named, drawn from the usual mill and handbook figures.