What density is used for lead?

This calculator uses 11,340 kg/m³, which is the standard accepted density of pure lead at room temperature.

Can I mix units — e.g. length in mm but thickness in inches?

No. All three dimensions must be in the same unit. Select either mm (metric) or inches (imperial) and enter all values in that unit.

Does the calculator account for alloys?

No. It uses pure lead density. Common alloys like lead-antimony (battery lead) or lead-tin (solder) have slightly different densities (11,100–11,300 kg/m³), so results may vary by 1–2% for alloys.

How accurate is the result?

Results are accurate for flat, uniform lead sheets. Cutouts, holes, or surface textures are not accounted for. For rolled or extruded sheets, tolerances from the manufacturer may also affect actual weight.

What is a typical lead sheet thickness?

Standard architectural lead sheet ranges from 1 mm to 6 mm. Radiation shielding sheets can be 10 mm or thicker depending on the application.

Lead Sheet Weight Calculator

Name: Lead Sheet Weight Calculator
Availability: InStock
Author: Nham Vu

Enter the dimensions of a lead sheet to instantly calculate its weight in kg and lb.

Sheet Dimensions

Unit System

Length (mm)

Width (mm)

Thickness (mm)

Result

Enter dimensions and click Calculate

Summary

Enter the dimensions of a lead sheet to instantly calculate its weight in kg and lb.

How it works

Enter the length and width of the lead sheet.
Enter the thickness of the sheet.
Choose your preferred unit system — metric (mm) or imperial (inches).
The calculator multiplies the three dimensions to get volume, then multiplies by lead density (11,340 kg/m³).
The result is displayed instantly in kilograms and pounds.

Use cases

Estimating lead sheet mass for radiation shielding enclosures.
Calculating shipping weight for lead flashing in roofing projects.
Verifying structural load from lead sound-damping panels.
Purchasing the correct quantity of lead sheet by weight.
Engineering specifications for X-ray or gamma-ray barriers.
Comparing sheet thicknesses to find the right weight-to-attenuation ratio.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu