Tungsten Weight Calculator
Pick a shape, enter the dimensions in millimeters and a tungsten grade. The calculator estimates the mass and shows how it compares to the same shape cut from steel or aluminum.
This estimates mass from typical published density. It does not check whether a shape can be machined as drawn. See how each grade machines and its typical tolerance.
How this estimate is calculated
The calculator works out the volume of the shape you enter, in cubic centimeters, then multiplies it by the typical density of the grade you pick. For a grade published as a range, it uses the midpoint of that range. Quantity multiplies the result. It does not add material for machining allowance, sprue and fixturing losses or any coating.
| Shape | Volume formula |
|---|---|
| Round bar | π × (diameter ÷ 2)² × length |
| Rectangular block | length × width × height |
| Tube (hollow cylinder) | π × [(outer diameter ÷ 2)² minus (inner diameter ÷ 2)²] × length |
The steel and aluminum comparison uses the same typical densities used across the site: steel at 7.85 g/cm³ and aluminum at 2.7 g/cm³.
Why the same shape weighs so much more in tungsten
Tungsten heavy alloy runs about 17.0 to 18.5 g/cm³ and pure tungsten about 19.3 g/cm³, against 7.85 g/cm³ for steel and 2.7 g/cm³ for aluminum. That extra density is the whole reason tungsten gets specified for counterweights and shielding: the part can be smaller and still hit a target mass. It is also why a small tungsten part can cost more to ship than a larger steel one.
How density affects freight and packaging cost for tungsten parts
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