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    Convert

    g → mg

    Gram
    g
    Milligram
    1,000
    mg
    Rounded result (4 decimals max)

    Formula

    1 g = 1,000 mg

    Conversion sourcesTap or click to view references

    • The International System of Units (SI) — NIST Special Publication 330

      National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

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    g to mg quick table

    Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

    Gram (g)Milligram (mg)
    0.25 g250 mg
    0.5 g500 mg
    1 g1,000 mg
    2 g2,000 mg
    5 g5,000 mg
    10 g10,000 mg
    25 g25,000 mg
    100 g100,000 mg

    mg back to g

    Keep the reciprocal handy when double-checking calculations or undoing a conversion.

    Milligram (mg)Gram (g)
    0.25 mg0.0003 g
    0.5 mg0.0005 g
    1 mg0.001 g
    2 mg0.002 g
    5 mg0.005 g
    10 mg0.01 g
    25 mg0.025 g
    100 mg0.1 g

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