Weight of a steel plate from mm dimensions — instant kg result using 7,850 kg/m³ carbon steel density.
| Input | Result |
|---|---|
| 2000 × 1000 × 10 mm | 157.00 kg |
| 1000 × 1000 × 6 mm | 47.10 kg |
| 3000 × 1500 × 12 mm | 423.90 kg |
A 1220 × 2440 mm (4×8 ft) plate at 6 mm weighs 1220×2440×6×850/10⁹ ≈ 140.2 kg; at 10 mm about 233.7 kg.
Only the density: use 7,900–8,000 kg/m³ instead of 7,850 — about 0.6–1.9% heavier. Multiply the result by 1.006–1.019.
Per m²: multiply thickness in mm by 7.85. A 10 mm plate is 78.5 kg/m²; 3 mm sheet is 23.6 kg/m².