What density does this calculator use?

It uses 8.96 g/cm³, which is the standard density for commercially pure copper (C11000, C10200, etc.). This value is accurate for the vast majority of copper flat bar applications.

Can I use imperial units?

Yes. Switch to Imperial mode and enter width and thickness in inches, and length in feet. The calculator converts internally and outputs weight in both lb and kg.

What is the weight formula for a copper flat bar?

Weight = Width × Thickness × Length × Density. In metric: (mm × mm × mm) ÷ 1,000,000 × 8.96 gives weight in kg when length is in mm. When length is in meters, convert to mm first by multiplying by 1,000.

Does copper alloy grade affect the result?

Minor alloy variations change density slightly. For example, brass (CuZn) ranges from 8.4–8.7 g/cm³ and bronze (CuSn) is around 8.8–8.9 g/cm³. For pure copper flat bars, 8.96 g/cm³ is the accepted standard.

How do I calculate weight for multiple bars?

Enter the single-bar dimensions and use the Quantity field to automatically multiply the result by the number of bars needed.

Copper Flat Bar Weight Calculator

Name: Copper Flat Bar Weight Calculator
Availability: InStock
Author: Nham Vu

Enter width, thickness, and length of a copper flat bar to instantly calculate its weight using copper density of 8.96 g/cm³.

Bar Dimensions

Unit System

Width (mm)

Thickness (mm)

Length (m)

Quantity (bars)

Enter dimensions and press Calculate to see weight.

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Summary

Enter width, thickness, and length of a copper flat bar to instantly calculate its weight using copper density of 8.96 g/cm³.

How it works

Enter the flat bar width in millimeters or inches.
Enter the flat bar thickness in millimeters or inches.
Enter the total length in meters, millimeters, or feet.
Select your preferred unit system (metric or imperial).
The calculator multiplies Width × Thickness × Length × Density (8.96 g/cm³) to give weight in kg and lb.

Use cases

Estimate material weight before ordering copper bar stock.
Calculate conductor mass for electrical busbars and grounding systems.
Compare weight across different copper flat bar sizes for a design.
Verify shipping weight for freight cost estimation.
Check weight budget when designing electrical enclosures.
Quick sanity-check during fabrication and procurement planning.

Frequently Asked Questions

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Last updated: 2026-05-23 · Reviewed by Nham Vu