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    Convert

    J → kJ

    Joule
    J
    Kilojoule
    0.001
    kJ
    Rounded result (4 decimals max)

    Formula

    1 J = 0.001 kJ

    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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    J to kJ quick table

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

    Joule (J)Kilojoule (kJ)
    0.25 J0.0003 kJ
    0.5 J0.0005 kJ
    1 J0.001 kJ
    2 J0.002 kJ
    5 J0.005 kJ
    10 J0.01 kJ
    25 J0.025 kJ
    100 J0.1 kJ

    kJ back to J

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

    Kilojoule (kJ)Joule (J)
    0.25 kJ250 J
    0.5 kJ500 J
    1 kJ1,000 J
    2 kJ2,000 J
    5 kJ5,000 J
    10 kJ10,000 J
    25 kJ25,000 J
    100 kJ100,000 J

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