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Calcimator

DNA Match Probability Calculator

Calculate random match probability and likelihood ratio for DNA evidence based on loci matched, population size, and allele frequencies.

Inputs

Results

Random Match Probability

5.734e-24

Likelihood Ratio

1.744e+23

RMP Exponent (10^x)-23.2
Expected Matches in Pop.1.892e-15
How to Use This Calculator
  1. Enter Loci Matched, Population Size, and Avg Allele Frequency.
  2. Review Random Match Probability and Likelihood Ratio.
  3. Use RMP Exponent (10^x) and Expected Matches in Pop. to inform your decision.
  4. Use the chart to visualize the results and explore different scenarios by adjusting inputs.
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