Tungsten Weight Calculator - Calculator Academy

Reviewed By: Patrick Myers (BSME)

Enter the tungsten density and dimensions (length, width, thickness) and leave one field blank. The calculator will evaluate and display the missing value (including tungsten weight). Formulas for other shapes are provided below.

Tungsten Weight Formulas

The tungsten weight calculator finds the theoretical weight of a part from its dimensions and material density. In every case, the calculation starts with the same idea: weight equals volume multiplied by density. If you know any four values, you can leave the fifth field blank and let the calculator solve for it.

Weight = Volume * d

For flat sheet, plate, or rectangular block stock, the volume is simply length times width times thickness.

Weight = L * W * T * d

Common Tungsten Shape Equations

For other shapes, first determine the cross-sectional area, then multiply by length and density.

Round bar

Weight = \pi * \frac{D^2}{4} * L * d

Square hollow tube

Weight = \left(W^2 - (W - 2T)^2\right) * L * d

Round hollow tube

Weight = \pi * (R^2 - r^2) * L * d

Angle

Weight = (2 * W * T - T^2) * L * d

T-bar

Weight = (W * T + (H - T) * T) * L * d

C-channel

Weight = (2 * W * T_1 + H * T_2) * L * d

Variable Definitions

L = length
W = width
T = thickness or wall thickness
H = overall height
D = outside diameter
R = outside radius
r = inside radius
d = material density
T₁ = channel flange thickness
T₂ = channel web thickness

Tungsten Density Reference

Pure tungsten is commonly taken as having a density of 19.25 g/cm³, which is equivalent to 19,250 kg/m³ or about 0.695 lb/in³. Because tungsten is extremely dense, even a small part can weigh much more than it appears. If you are working with a tungsten alloy rather than pure tungsten, use the actual density from the material specification for a more accurate result.

Reference Volume	Approximate Tungsten Weight
1 cm³	19.25 g
100 cm³	1.925 kg
1 in³	0.695 lb
10 in³	6.95 lb
1 m³	19,250 kg

How to Use the Tungsten Weight Calculator

Enter the tungsten density in your preferred unit set.
Input the known dimensions of the part.
Leave the unknown field blank if you want the calculator to solve for it.
Select the output unit for the final weight value.

This is useful for estimating raw material requirements, shipping weight, machining loads, counterweight sizing, ballast, and shielding components.

Accuracy Tips

Use actual measured dimensions when accuracy matters, especially for finished or machined parts.
Keep units consistent if you calculate by hand. Do not mix inches with kg/m³ unless you convert first.
For hollow sections, only the metal volume counts; subtract the empty interior.
For round parts, confirm whether your measurement is a diameter or a radius.
If the part includes holes, chamfers, grooves, or cutouts, subtract those volumes for a closer estimate.
Alloys, sintered parts, and specialty grades may have densities that differ from pure tungsten.

Solving for a Missing Dimension

If you know the target weight and need to determine one rectangular dimension, rearrange the flat-stock formula. For example, thickness can be solved directly from weight, length, width, and density.

T = \frac{Weight}{L * W * d}

The same approach works for the other dimensions.

L = \frac{Weight}{W * T * d}

W = \frac{Weight}{L * T * d}

Common Questions

Why is tungsten so heavy for its size?: Tungsten has an exceptionally high density, so a small amount of material contains a large amount of mass.
Can I use metric or imperial units?: Yes. The calculator supports both systems, but manual calculations only work correctly when all units are compatible.
Will alloy tungsten weigh the same as pure tungsten?: Not always. Heavy alloys and specialty grades can vary, so the best practice is to use the exact density for your material.