What this calculator does
Metal bar & sheet weight works out weight of a metal plate, bar or round rod from its dimensions and material density. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
FormulaWeight = volume × density; rectangular volume = length × width × thickness; round volume = π(d/2)² × length
The inputs explained
| Field | What to enter |
|---|---|
| Shape | Choose from Rectangular plate or bar, Round rod or bar. |
| Length (mm) | A number, measured in mm. Starts at 1000. |
| Width (rectangular only) (mm) | A number, measured in mm. Starts at 100. |
| Diameter (round only) (mm) | A number, measured in mm. Starts at 20. |
| Thickness (rectangular only) (mm) | A number, measured in mm. Starts at 5. |
| Material | Choose from Mild steel (7850 kg/m³), Stainless steel (8000 kg/m³), Aluminium (2700 kg/m³), Copper (8960 kg/m³), Brass (8500 kg/m³), Cast iron (7200 kg/m³), Titanium (4500 kg/m³), Lead (11340 kg/m³). |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with length
Every other input is held at the calculator’s starting values while length varies. Select any row to load that scenario into the calculator.