• Question: How much carbon does a human have in their body?

    Asked by gallopinghorse123 to Joe on 10 Mar 2014.
    • Photo: Joe Sweeney

      Joe Sweeney answered on 10 Mar 2014:


      It varies from person to person, but in an average person there’s about 16 kg of carbon. That equates to 3 x 10*27 (3, 000, 000, 000, 000, 000, 000, 000, 000, 000) atoms. It’s also the same mass as 16 bags of sugar, so quite a lot!

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