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Converting % shared to cMs

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  • Converting % shared to cMs

    If the percent shared at 23 and Me is (e.g., 0.14% shared), what is the formula/calculation for converting this to cMs? In simple terms, please.

  • #2
    Easiest thing is to multiply by 75 (rounded up slightly from the actual number which I don't remember offhand.)

    Bear in mind that 23andMe only counts segments of over 5 cM in arriving at its numbers, whereas FTDNA counts 1-5 cM segments, so total shared at FTDNA is not going to be consistent with percent shared at 23andMe.

    Originally posted by marietta View Post
    If the percent shared at 23 and Me is (e.g., 0.14% shared), what is the formula/calculation for converting this to cMs? In simple terms, please.

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