What formula is used to calculate copper square bar weight?

The formula is: Weight = Side² × Length × Density. Side and length are converted to meters, multiplied to get volume (m³), then multiplied by copper density (8960 kg/m³) to get weight in kilograms.

What is the density of copper used in this calculator?

Pure copper has a density of 8960 kg/m³ (8.96 g/cm³). This is the standard value for commercially pure copper (C11000 / electrolytic tough pitch copper) used in most industrial applications.

Does this tool support imperial units?

Yes. Side length can be entered in mm, cm, or inches. Bar length can be entered in meters, mm, feet, or inches. All values are converted internally to meters before the calculation.

Can I calculate total weight for multiple bars?

Yes. Enter the number of bars in the Quantity field and the calculator will show both the per-bar weight and the total weight for the entire batch.

How does a square bar differ from a round bar in weight?

A square bar is heavier than a round bar of the same cross-sectional dimension. A square bar with side S has cross-section S², while a round bar with diameter D has cross-section π/4 × D². For equal side/diameter, the square bar is about 27% heavier.

Is this calculator suitable for copper alloys like brass or bronze?

This tool uses pure copper density (8960 kg/m³). Brass (8400–8700 kg/m³) and bronze (8800–8900 kg/m³) have slightly different densities. For those materials, use a dedicated brass or bronze calculator for accurate results.

Copper Square Bar Weight Calculator

Enter side length and bar length to instantly calculate copper square bar weight in kg and lbs.

Bar Dimensions

Side Length

Bar Length

Quantity (bars)

Formula Reference

W = S² × L × 8960

Where S = side length (m), L = bar length (m), 8960 = copper density (kg/m³), W = weight (kg).

Enter dimensions on the left and click Calculate.

Copper vs. Common Metals

Material	kg/m³	lb/in³	Common Use
Copper (C11000)	8960	0.3237	Electrical, plumbing
Brass (C26000)	8530	0.3081	Fittings, valves
Bronze (C93200)	8830	0.3189	Bearings, bushings
Steel (A36)	7850	0.2836	Structural
Aluminum (6061)	2700	0.0975	Lightweight structures

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Summary

Enter side length and bar length to instantly calculate copper square bar weight in kg and lbs.

How it works

Enter the bar side length in millimeters, inches, or centimeters.
Enter the bar length in meters, millimeters, feet, or inches.
Optionally enter a quantity to calculate weight for multiple bars.
The calculator applies W = Side² × L × 8960 to get weight in kilograms.
The result is also converted to pounds (1 kg = 2.20462 lb), with linear weight displayed in kg/m and lb/ft.
Click Copy to save the result to your clipboard.

Use cases

Estimating copper material weight for busbar and electrical switchgear projects.
Calculating freight and shipping weight for copper square bar stock orders.
Preparing bill of materials (BOM) for CNC machining and fabrication.
Verifying load limits on lifting and handling equipment.
Cost estimation for copper stock purchases by weight.
Comparing copper square bar weight against round bar or flat bar alternatives.
Material planning for heat exchanger and conductor manufacturing.
Checking raw material requirements for grounding systems and busbars.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu