🔄 DNA Percentage to Centimorgan Converter

DNA testing companies report shared DNA as either a percentage or a centimorgan (cM) total. Convert between the two using a commonly cited total autosomal genome length of approximately 6,800 cM. This is an approximation — the exact total used varies slightly by company.

Percent DNA shared (%)

OR Centimorgans shared (cM)

Total autosomal genome basis (cM)