Allele frequency
Allele frequency: use aa count, aa count, aa count. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
p(A) = (2AA+Aa)/[2(AA+Aa+aa)]
Variables & units
- AA count
- Numeric value · minimum 0, maximum 1000000000
- Aa count
- Numeric value · minimum 0, maximum 1000000000
- aa count
- Numeric value · minimum 0, maximum 1000000000
Worked example
Use the example inputs to explore this model; the solution shows each supplied quantity.
Assumptions
Diploid, biallelic count arithmetic. No inference about ancestry, diagnosis or individual traits.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
Calculated on your device. Your latest 100 calculations stay in this browser.