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Hardy-Weinberg Calculator

Science & Engineering

p²+2pq+q²=1 · allele frequencies · carrier rate

Quick Answer

Hardy-Weinberg Calculator: p²+2pq+q²=1 · allele frequencies · carrier rate. Hardy-Weinberg Calculator uses standard science & engineering formulas to compute accurate results instantly.

How it works

  1. 1Equilibrium: p+q=1, p²+2pq+q²=1
  2. 2Enter recessive frequency q² (incidence of the recessive trait)
  3. 3q=√q², p=1−q, carriers=2pq
  4. 4The rarer the disease, the higher the carrier-to-affected ratio

Population input

e.g. 0.0001 = 1 in 10,000
Carrier frequency 2pq (Aa)1.98%
q (a)：0.0100
p (A)：0.9900
Homozygous dom. p²：98.01%
Equilibrium assumes no mutation, random mating, no selection, large population, no migration — real populations deviate (consanguinity, drift, selection). Clinical counseling must layer family history and ancestry baselines (e.g. CF carrier rate ~1/25 in Northern European vs far lower in East Asian). If you already know the allele frequency, plug p and q in directly.

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How to Use

  1. Enter known quantities: fill values and confirm units in the Hardy-Weinberg Calculator.
  2. Instant solution: unknowns solve live with the formula shown transparently.
  3. Use constant/material tables: standard physical constants and material data are listed on this page.
  4. Compare conditions: change inputs to compare scenarios.

Key Points

  • Hardy-Weinberg Calculator is a free online science & engineering tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: p²+2pq+q²=1 · allele frequencies · carrier rate.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Hardy-Weinberg Calculator formula

Hardy-Weinberg Calculator uses standard science & engineering formulas to compute accurate results instantly.

FAQ

How do I use the Hardy-Weinberg Calculator?
Open the page and fill in the input fields — results update automatically. p²+2pq+q²=1 · allele frequencies · carrier rate.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on CODATA recommended constants and standard physics formulas. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Hardy-Weinberg Calculator[EB/OL]. https://www.yijiansuan.com/en/c/science/hardy-weinberg

Results provided by this tool are for reference only and do not constitute professional advice.