What brass density does this calculator use?

It uses 8,500 kg/m³ (8.50 g/cm³), which is the standard density for common brass alloys such as C260 (cartridge brass), C360 (free-machining brass), and C464 (naval brass). Density may vary ±1–2% across alloy grades, but 8,500 kg/m³ is accurate for most 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 formula for brass flat bar weight?

Weight = Width × Thickness × Length × Density. In metric: (width_mm × thickness_mm × length_mm) ÷ 1,000,000 × 8.50 gives weight in kg. All dimensions must use consistent units before multiplying.

How accurate is this calculator?

Accuracy depends on how close your brass alloy density is to 8.50 g/cm³. For most common brass flat bar grades the error is under 2%. For high-precision applications, verify the exact density of your specific alloy from the material data sheet.

How do I calculate weight for multiple bars?

Enter the single-bar dimensions, then set the Quantity field to the number of bars. The calculator multiplies the per-bar weight by the quantity and shows the total weight separately.

Brass Flat Bar Weight Calculator

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

Enter width, thickness, and length of a brass flat bar to instantly calculate its weight using the standard brass density of 8,500 kg/m³.

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 brass flat bar to instantly calculate its weight using the standard brass density of 8,500 kg/m³.

How it works

Enter the flat bar width in millimeters (metric) or inches (imperial).
Enter the flat bar thickness in millimeters or inches.
Enter the total bar length in meters, or feet for imperial.
Optionally enter a quantity to calculate the total weight for multiple bars.
Click Calculate Weight — the tool multiplies Width × Thickness × Length × 8.50 g/cm³ and displays the result in kg and lb.

Use cases

Estimate brass stock weight before placing a material order.
Calculate dead load contribution of brass flat bar components.
Compare weight across different brass flat bar cross-sections.
Determine shipping weight for freight cost estimation.
Verify weight budgets in precision-machined assemblies.
Quick cross-check during fabrication planning.
Calculate total brass weight for bulk purchase orders.

Frequently Asked Questions

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