Formula used
Steel plate weight = length × width × thickness × 490 lb/ft³ × plate count
Worked steel plate weight example
Steel Plate Weight Calculator example: 10.4 ft × 3.9 ft × (0.25 in ÷ 12) = 0.845 ft³ per plate. At 490 lb/ft³, each plate is about 414 lb; 12 plates total about 4,969 lb.
Use the weight for planning
Use per-plate and total pounds to plan pricing and handling, then confirm certified or scale weight for shipping and lifts.
Why scale or supplier weight may differ
Mill tolerances, grade density, cutouts, bevels, corrosion allowance, coatings, and remnants make actual fabricated weight differ.
Questions specific to this calculation
What steel density does the calculator use?
Enter plate length and width in feet, thickness in inches, and whole plate count. The calculation uses 490 lb/ft³ for its steel density constant.