Jewelry Metal Weight conversion

In jewelry design and production, we’ve noticed that many clients and industry peers often struggle with metal weight conversions and density-to-price ratios, frequently requiring multiple sources for reference.

To simplify this process for everyone—and for ourselves—we’ve created this one-stop tool page. Here, you can quickly convert weights between wax models and metals, view real-time metal reference prices and densities, and streamline your workflow.

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    Jewelry Metal Weight Converter

    Jewelry Metal Weight Converter

    Weight Unit Conversion

    Metal Weight Conversion (by Density)

    Estimated Target Weight
    -- g

    Density Formula (same volume): Target Weight = Original Weight × (Original Density ÷ Target Density)
    Note: Densities are typical values. Alloy composition may cause slight differences.

    📊 Metal Density Reference Table

    The densities below are theoretical approximations derived from this tool's conversion factors (assuming wax density is 1 g/cm³) and are specific to the calculations on this page.

    Metal Name Metal Color Densità (g/cm³)
    Rame
    Cu
    8.96
    Nickel Silver
    NS
    8.50
    Argento 925
    925
    10.36
    Fine Silver
    Ag
    10.49
    Palladium Silver
    PdAg
    10.70
    8K Gold
    8K
    10.85
    9K Gold
    9K
    11.20
    Oro 10K
    10K
    11.55
    Oro bianco 14K
    14KW
    12.75
    18K White Gold
    18KW
    14.80
    PT900 Platinum
    PT900
    19.90
    PT950 Platinum
    PT950
    20.15
    14K Yellow Gold
    14KY
    13.05
    18K Yellow Gold
    18KY
    15.45
    Oro 22K
    22K
    17.75
    24K Pure Gold
    24K
    19.32
    14K Rose Gold
    14KR
    13.10
    18K Rose Gold
    18KR
    15.15
    304 Stainless Steel
    304
    7.93
    Palladio
    Pd
    12.02

    Nota: Density values are approximate. Color representations are approximations of typical metal appearances.

    jewelry metals color
    Jewelry Metals Color Chart

    Wax to Jewelry Metal Conversion Rate for Jewelry Casting

    Formula: Metal Weight = Wax Weight × Conversion Factor

    Metallo Wax Factor Metallo Wax Factor
    Rame 8.34 Oro bianco 14K 12.61
    Nickel Silver 8.69 14K Yellow Gold 13.05
    925 Silver 9.97 18K White Gold 14.51
    Pure Silver 10.20 18K Yellow Gold 15.15
    Palladium Silver 10.32 18K Red Gold 15.30
    8K Gold 10.70 Oro 22K 17.63
    9K Gold 11.01 PT900 Platinum 18.57
    Oro 10K 11.34 Oro 24 carati 19.00
    304 Stainless Steel 12.96 PT950 Platinum 21.00
    Palladio 14.32
    Wax to Metal Weight Converter

    Wax to Jewelry Metal Conversion (Casting)

    Formula: Metal Weight = Wax Weight × Wax Factor
    Estimated Metal Weight
    -- g
    Nota: Wax factors are typical values for jewelry casting. Final metal weight may change slightly due to sprue, shrinkage, and finishing loss.

    📊 Jewelry Metal Weight Conversion & Specific Gravity Comparison

    Formula: Target Weight = Source Weight × Ratio

    Metal Name RameNi-Silver925 SilverFine SilverPd-Silver8K Gold9K GoldOro 10K14K White14K Yellow18K White18K Yellow18K RedOro 22KPT900Oro 24 caratiPT950304 SteelPalladio
    Cera1g =8.348.699.9710.2010.3210.7011.0111.3412.6113.0514.5115.1515.3017.6318.5719.0021.0012.9614.32
    Rame1g =1.000.960.840.820.810.780.760.740.660.640.570.570.530.470.450.440.411.090.75
    Ni-Silver1g =1.041.000.850.850.840.810.790.770.690.670.600.600.580.490.470.460.431.110.71
    925 Silver1g =1.201.151.000.980.970.930.910.880.790.770.690.690.660.570.540.520.501.300.86
    Fine Silver1g =1.221.171.021.000.990.950.930.900.810.780.700.700.680.500.550.540.511.330.87
    Pd-Silver1g =1.241.191.041.041.000.960.940.910.820.790.710.710.630.590.560.540.511.350.89
    8K Gold1g =1.281.231.071.051.041.000.970.940.850.820.740.740.710.610.570.560.531.390.90
    9K Gold1g =1.321.271.101.081.071.031.000.940.870.850.760.760.730.620.590.580.551.430.93
    Oro 10K1g =1.361.301.141.111.101.051.031.000.900.870.780.780.750.640.610.600.561.480.96
    14K White1g =1.511.451.261.241.221.181.151.111.000.970.870.870.840.720.680.660.631.641.06
    14K Yellow1g =1.561.501.301.271.261.211.181.151.031.000.900.900.860.720.700.680.651.691.09
    18K White1g =1.741.671.461.421.411.361.321.201.151.121.000.980.980.820.760.740.721.901.23
    18K Yellow1g =1.811.741.511.481.461.411.371.331.201.164.041.001.010.860.810.790.721.961.29
    18K Red1g =1.831.761.531.501.481.431.391.351.211.184.054.051.000.870.820.810.751.991.66
    Oro 22K1g =2.112.031.771.731.711.651.601.551.401.361.221.221.171.000.950.920.882.301.48
    PT9001g =2.232.141.861.821.801.741.691.641.471.431.281.281.231.051.000.980.922.421.68
    Oro 24 carati1g =2.202.191.911.861.841.781.731.681.511.461.311.311.261.081.021.000.942.481.61
    PT9501g =2.422.322.021.981.951.881.831.781.601.551.391.391.331.141.091.061.002.631.68
    304 Steel1g =0.910.870.760.740.740.710.690.670.600.590.520.520.500.430.410.400.381.000.66
    Palladio1g =1.341.411.161.151.121.111.071.040.940.920.810.780.600.680.600.620.601.521.00

    📊 Metal Composition Table

    Metal Name Composizione Standard / Variant
    Oro bianco 14K
    58.3% fine gold
    23% copper
    11% nickel
    7.7% zinc
    Normal Alloy
    18K White Gold
    75% fine gold
    10% copper
    8% nickel
    4.5% zinc
    2.5% silver
    Normal Alloy
    14K Yellow Gold
    58.5% fine gold
    29% copper
    12.5% fine silver
    Standard
    18K Yellow Gold
    75% fine gold
    15% copper
    10% fine silver
    Standard
    14K Rose Gold
    58% gold
    32% copper
    10% silver
    Standard
    18K Rose Gold
    75% gold
    22.25% copper
    2.75% silver
    Standard
    14K White Gold (Pd)
    58.33% pure gold (Au)
    32.17% silver (Ag)
    9.50% palladium (Pd)
    Palladium Alloy
    18K White Gold (Pd)
    75% pure gold (Au)
    25% palladium / platinum
    High Grade
    24K Pure Gold
    99.9% Gold
    Pure Metal
    PT950 Platinum
    95% Platinum
    5% Iridium/Ruthenium
    Premium
    925 Silver
    92.5% Silver
    7.5% Copper
    Argento

    Karat Gold Price Calculator

    Enter 24K price per ounce to calculate gram prices

    $
    Formula: (24K Ounce Price ÷ 31.10) × (K/24)
    * 1 troy ounce ≈ 31.1035 grams
    Gold Purity Chart
    Karat Gold Price
    Unit: Per Gram (USD)
    Enter ounce price to calculate...