Steel Plate Weight Calculator — m, kg

Dimensions in m, cm, mm · Weight in kg · Multiple materials · Cost estimate
EN 10025 / EN 10088
Switch to Imperial version →

How to use this calculator

Choose a plate shape (rectangle, circle, triangle, or ring), enter dimensions with the unit dropdown (m, cm, or mm), select material type and thickness, and specify the number of plates. Results update instantly with area, volume, weight per plate, and total weight.

Materials — Carbon steel (7 850 kg/m³), Stainless 304 (8 030 kg/m³), Stainless 316 (8 030 kg/m³), Aluminum 6061 (2 710 kg/m³), Copper (8 960 kg/m³).
Cost — enter price per kg or per plate. Select your currency.

Carbon 7 850 kg/m³ SS 304/316 8 030 kg/m³ Aluminum 2 710 kg/m³ Copper 8 960 kg/m³
Plate Shape & Dimensions
Common: 3 mm · 5 mm · 6 mm · 8 mm · 10 mm · 12 mm · 20 mm · 25 mm
pcs
Diagram
Price
varies by material and thickness
Results
Area
Volume
Weight per plate
kg
Total weight
kg
Total weight
tonnes

Saved Calculations

TimeShapeMaterialArea m²kg/plateTotal kgCost
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How to Calculate Steel Plate Weight (Metric)

This calculator estimates metal plate weight in four shapes: rectangle, circle, triangle, and ring (annulus). Enter dimensions in millimeters, centimeters, or meters using the dropdown, select plate thickness, and choose the material. Weight = Volume × Density.

Material Densities

Carbon steel S235/S355: 7 850 kg/m³. Stainless 304 and 316: 8 030 kg/m³. Aluminum 6061: 2 710 kg/m³. Copper: 8 960 kg/m³.

Formulas

Rectangle: A = L × W. Circle: A = π × (D/2)². Triangle: A = ½ × B × H. Ring: A = π × ((D₀/2)² - (Dᵢ/2)²). Volume = A × thickness. Weight = Volume × density.

Misha Noyr, M.Eng.

Misha Noyr, M.Eng.

Civil Engineer · 15+ yrs · structural design, geotechnics. Full bio →