Metal Weight Calculator

Calculate the weight of a metal plate or bar from its size and metal type.

Length

Width

Thickness

Metal

Weight 10.21

Weight 4.631

Volume (in³) 36

Formula: weight = length × width × thickness × density

Step-by-step with your numbers:

1. Values used:

2. Length = 12

3. Width = 6

4. Thickness = 0.5

5. Metal = 0.2836

7. Weight = 10.21

8. Weight = 4.631

9. Volume = Length x Width x Thickness = 12 x 6 x 0.5 = 36in³

Did we solve your problem today?

Estimate the weight of a rectangular metal plate or flat bar. Pick the metal and the calculator uses its density automatically.

The math behind it

volume (in³) = length × width × thickness.

weight = volume × density. Densities (lb/in³): steel 0.2836, stainless 0.289, aluminum 0.0975, copper 0.323, brass 0.307.

A 12×6×0.5 in steel plate → 36 in³ × 0.2836 = 10.2 lb (4.6 kg).

How do I weigh a round bar?

Use volume = π × radius² × length, then multiply by density.