Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Biallelic diploid equilibrium expectations under ideal assumptions. Fractional expected counts are allowed; no equilibrium statistical test.
Example Calculation
- Allele A frequency p: 0.6
- Population size: 1000
Allele A frequency p = 0.6; Population size = 1000. Primary result: 360.
Frequently asked questions
How do I use this calculator?
Enter allele a frequency p, population size. The result updates automatically. Use Reset to restore the example values.
What method does it use?
AA=p²; Aa=2p(1−p); aa=(1−p)².. Biallelic diploid equilibrium expectations under ideal assumptions. Fractional expected counts are allowed; no equilibrium statistical test.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.