How much of your height is in your genes?

An estimate of your genetic height potential based on hundreds of associated variants in your raw DNA file.

Genes account for a large share of height variation within a population — in well-nourished populations heritability is often estimated around 70–80 %. DNAHelper combines the height-associated variants actually present in your raw file into a polygenic estimate.

What the analysis shows

Height is one of the most well-studied heritable traits. DNAHelper combines the height-associated variants present in your raw file into an estimate of genetic height potential. The result is a statistical estimate — environment, nutrition and chance matter too. All analysis happens locally in your browser.

What a polygenic estimate is

Height is not controlled by a single gene but by thousands of variants with small contributions. A polygenic estimate sums these contributions into a measure showing where your genetic height potential sits relative to the reference population.

What matters beyond genes

Nutrition during growth, childhood illness and general health all affect final height. Even with the same genetic profile two people can differ by several centimetres — the estimate describes potential, not a guaranteed outcome.

How to read your result

DNAHelper shows the estimate against a reference distribution. A result above average means your variant combination is associated with taller height in the studies — it says nothing exact about your own height and even less about children's future height.

What the result means — and does not mean

The analysis builds on the trait body height (strong evidence strength). Height is highly heritable, but polygenic measures are trained mostly on European populations — accuracy can be lower for other backgrounds. The result is a statistical measure, not a measurement of your body.

Associations are statistical — they describe populations, not destinies. Read how we grade evidence in our method.

Privacy: your file never leaves the browser

You choose your raw file locally — it is parsed and analysed entirely in your browser and is not uploaded for the standard analysis. The only exception is the optional DNA Chat feature where you, after explicit consent, can share selected variants. Read the privacy policy · What happens to your DNA file?

Compatible raw files

Works with raw data exports from MyHeritage, 23andMe, AncestryDNA, FamilyTreeDNA (.txt, .csv, .zip). The download guides show exactly where to find your file with each provider — and the file formats are explained here.

Analyse your height genetics