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Calculate ring blank length from finger size, band width, and metal gauge. Get accurate strip dimensions for soldering seamless jewelry bands.
Find melting points and casting temperatures for jewelry metals and alloys. Reference gold, silver, platinum, and brass melt temps for casting and soldering.
Calculate wire length needed for wraps, coils, and bezels in jewelry making. Estimate material for rings, pendants, and wire-wrapped stone settings.
Calculate cross-sectional area for the stock shape — rectangular (width × thickness), round bar (πr²), tube (π(R² − r²)), or plate (length × width × thickness). Multiply by length for total volume.
Volume = Cross-section area × LengthMultiply volume by material density. Carbon steel is ~7850 kg/m³ (0.283 lb/in³); aluminum 6061 is ~2700 kg/m³ (0.098 lb/in³); copper is ~8960 kg/m³ (0.323 lb/in³).
Weight = Volume × DensityConvert dimensions to consistent units before calculating. For imperial: volume in cubic inches × 0.283 lb/in³ for steel. For metric: volume in cm³ × density in g/cm³ gives grams.
Weight (lb) = Volume (in³) × Density (lb/in³)Updated: July 2026
A 4×8 ft × 1/4 in steel plate has volume ~1152 in³. At 0.283 lb/in³ density, weight is approximately 326 lbs — plan for two-person lift or mechanical handling.
A 2-inch diameter × 72-inch 6061-T6 bar weighs roughly 41 lbs (0.098 lb/in³ × π × 1² × 72). Useful for comparing aluminum vs steel handling on a lathe project.
Hollow structural tube with 2-inch outer, 1.5-inch inner side, 1/4-inch wall over 240 inches. Net steel area yields roughly 130–140 lbs depending on exact corner radii.
Calculate wall cross-section as outer area minus inner area. Treating a tube as solid bar overstates weight by the ratio of OD² to (OD² − ID²).
Convert all dimensions to one system first. Multiplying mm dimensions by lb/in³ density without converting to inches produces wildly wrong results.
Estimating metal weight is essential for material ordering, shipping quotes, structural load planning, and shop handling. This calculator computes mass from cross-section dimensions and alloy-specific density for bars, plates, tubes, and other common stock shapes.