Formula used
The calculator first converts every length value into centimeters. It then finds acrylic volume in cubic centimeters.
Sheet or block: Volume = Length × Width × Thickness.
Solid rod: Volume = π × Radius² × Length.
Tube: Volume = π × (Outer radius² − Inner radius²) × Length.
Net volume: Net volume = Gross volume − Round hole volume − Rectangular cutout volume.
Weight: Weight in grams = Net volume × Density. Weight in kilograms = Weight in grams ÷ 1000.
Order weight: Order weight = Finished weight × (1 + Waste percent ÷ 100).
How to use this calculator
- Select the acrylic shape.
- Choose the unit used by your drawing or order sheet.
- Enter the required dimensions.
- Keep density at 1.19 g/cm³, or enter a supplier value.
- Add holes and cutouts when material is removed.
- Enter quantity, waste allowance, and price per kilogram.
- Press the calculate button.
- Download the result as CSV or PDF.
Example data table
| Shape |
Dimensions |
Density |
Quantity |
Estimated use |
| Sheet |
1000 mm × 500 mm × 5 mm |
1.19 g/cm³ |
1 |
Panel or sign face |
| Solid rod |
50 mm diameter × 1000 mm length |
1.19 g/cm³ |
2 |
Machined spacer stock |
| Tube |
60 mm OD, 40 mm ID, 1200 mm length |
1.19 g/cm³ |
3 |
Display or guard tube |
Acrylic Weight Calculator Guide
Why acrylic weight matters
Acrylic is light, clear, and strong for many display projects.
It is used for signs, guards, cases, panels, shelves, and tubes.
Even small thickness changes can affect the final load.
A weight estimate helps during design and purchasing.
It also helps with shipping and support planning.
Material planning
This tool works with sheets, blocks, solid rods, and hollow tubes.
You can enter metric or imperial dimensions.
The calculator converts every dimension into centimeters.
Then it finds the volume for the selected shape.
The density value changes volume into weight.
Standard acrylic is often estimated near 1.19 g/cm³.
Supplier data can vary slightly.
Use the exact value when it is available.
Cutouts and waste
Real parts often include holes, slots, windows, or trimmed edges.
This calculator subtracts round holes and rectangular cutouts.
The cutout depth should match the removed material depth.
For a sheet, this is usually the sheet thickness.
For drilled rods, it may match the hole depth.
Waste allowance is added after the finished part weight.
This gives a better ordering estimate.
Cost and shop use
The price field is optional.
Enter a cost per kilogram when you need a budget estimate.
The result separates finished weight and order weight.
This is useful because finished parts exclude removed material.
Ordered stock may need extra material for trimming.
CSV export is helpful for spreadsheets.
PDF export is useful for quotes and job records.
Always round up when buying full sheets or standard rods.
Good measurement practice
Measure length, width, and thickness carefully.
Use the same unit across the form.
Check whether protective film is included in shop measurements.
Film weight is usually small, but it can matter for large orders.
Recheck tube inner diameter before buying.
A small inner diameter error can change tube weight.
Use this result as an estimate for planning.
Confirm final values with supplier specifications.
FAQs
What density should I use for acrylic?
Use 1.19 g/cm³ for a common acrylic estimate. If your supplier gives a different density, enter that value for better accuracy.
Can this calculator handle acrylic sheets?
Yes. Choose sheet or block. Then enter length, width, thickness, density, quantity, waste, and optional cutout details.
Can it calculate acrylic rod weight?
Yes. Choose solid rod or cylinder. Enter outer diameter as the rod diameter. Then enter the rod length and density.
How is acrylic tube weight calculated?
The tool subtracts the inner circular volume from the outer circular volume. It then multiplies the net volume by acrylic density.
What does waste allowance mean?
Waste allowance adds extra material for trimming, breakage, kerf loss, mistakes, and handling. It affects order weight, not finished part weight.
Are holes subtracted from weight?
Yes. Enter hole diameter, hole count, and cutout depth. The calculator subtracts the removed cylindrical volume from gross volume.
Why is my result zero?
A zero result can happen when dimensions are missing, density is zero, or cutout volume is larger than gross volume. Recheck the inputs.
Can I export the result?
Yes. Use the CSV button for spreadsheet data. Use the PDF button for a simple printable calculation summary.