Plate Weight Calculator

Determine the weight of any plate-shaped material quickly. Supports multiple metals including carbon steel, stainless steel, aluminum, copper, brass, titanium, and more. Enter dimensions and material type for accurate weight calculations for fabrication, shipping, and cost estimation.

Only used with Custom Density option

Optional: Enter material cost per pound

For calculating total weight of multiple identical plates

Weight = Volume × Density

Volume = Length × Width × Thickness

Standard Densities (lb/in³):
• Carbon Steel: 0.2836
• Stainless Steel: 0.289
• Aluminum 6061: 0.0975
• Brass: 0.307
• Copper: 0.324
• Titanium: 0.163
A 4ft × 8ft × 1/4 inch carbon steel plate: Length = 48 in, Width = 96 in, Thickness = 0.25 in. Volume = 48 × 96 × 0.25 = 1152 in³. Weight = 1152 × 0.2836 = 326.7 lbs. Cost at $0.85/lb = $277.70.

How do I calculate the weight of a steel plate?

Weight = Length × Width × Thickness × Density. For carbon steel at 0.2836 lb/in³, a 4ft × 8ft × 1/4 inch plate: convert to inches (48 × 96 × 0.25 = 1152 in³), multiply by density (1152 × 0.2836 = 326.7 lbs). Use our calculator for instant results with any material.

What is the standard size of a steel plate?

Common steel plate sizes include 4ft × 8ft, 4ft × 10ft, 5ft × 10ft, and 6ft × 20ft. Standard thicknesses range from 1/8 inch (0.125 in) to 6 inches in 1/16 or 1/8 inch increments. Steel gauge sizes (7-26) are also commonly used for thinner sheets.

How much does a 4x8 sheet of 1/4 inch steel weigh?

A 4ft × 8ft sheet of 1/4 inch carbon steel weighs approximately 326.7 lbs. In metric units, that is about 148.2 kg. Stainless steel would be slightly heavier at ~333 lbs for the same dimensions due to its higher density (0.289 lb/in³).

What is steel gauge thickness?

Steel gauge is a standardized thickness measurement where a higher gauge number means thinner material. For example, 7-gauge steel is 0.1875 inches (3/16 in), 16-gauge is 0.0598 inches (about 1/16 in), and 26-gauge is 0.0179 inches. Gauge standards differ between carbon steel, galvanized steel, and aluminum.

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