ATLAS · FIELD GUIDE
Average Height by Country: Why Some Nations Stand Taller
The average man is about 171 cm tall worldwide — but that ranges from around 184 cm in the Netherlands to 160 cm in Timor-Leste. What sets a country's height, and why has it changed so much in a single century?
The average man worldwide is about 171 cm tall. But that single figure hides one of the more striking patterns on any map: from around 184 cm in the Netherlands to 160 cm in Timor-Leste, a gap of nearly a foot between the tallest and shortest national averages. Average height is, in one number, a record of how well a country has fed and cared for its children.
What the number measures
The map shows the mean height of men measured at age 19 — the age by which adult stature is essentially reached. It draws on the largest pooled study of human growth ever assembled: more than two thousand population-based studies covering 65 million people across 200 countries. The companion women's map shows the same figure for women.
Measuring at 19 matters: it captures the full result of childhood growth, and it reflects relatively recent conditions — the health and nutrition of those born around the turn of the century — rather than generations ago.
Why countries differ
Within any single well-fed population, how tall one person is compared to another is largely down to genes. But the differences between countries, and the large increases over time, are driven far more by environment:
- Childhood nutrition — especially protein and, in the tallest countries, dairy — through the years of growth.
- Health in early life — fewer childhood illnesses means more of a child's energy goes into growing.
- Time — good conditions compounding across several generations.
The clearest proof that this is mostly environmental is change: average heights in many countries have risen by around ten centimetres in a century — far too fast for genetics. When childhood conditions improve, height rises; when they stall, it stalls.
How to read the map
Deeper colour means a taller average. The pattern:
- tallest (around 180–184 cm) across much of Europe — the Netherlands leads, with Montenegro, Estonia, Bosnia, Denmark and others close behind;
- shortest (around 160–165 cm) in Timor-Leste and parts of South and Southeast Asia;
- a broad middle across the Americas, the Middle East and much of Africa.
Read each value as the average for men born around 2000 in that country — a snapshot of childhood conditions, not a fixed trait of a people. Every value carries its source and year.
For the companion figure, see the average height of women. For two related measures of how well a country supports early life, see life expectancy and the median age of its population.
Frequently asked questions
What height does the map actually show?
The average (mean) height of men measured at age 19 — the age by which adult stature is essentially reached. The figures come from the NCD Risk Factor Collaboration, which pooled more than two thousand population-based studies covering 65 million people across 200 countries. Each value is the most recent estimate, for the 2019 cohort, and carries its source and year. Women are shown on a separate, companion map.
Why is the Netherlands the tallest country?
Dutch men average about 184 cm, the tallest national figure ever recorded, and most of the rest of the top ten are European. The usual explanation combines three reinforcing factors: a diet rich in dairy and protein from early childhood, strong public healthcare that limits illness during the growing years, and several generations of good nutrition compounding. Height is not set by any single one of these — it is what happens when a population is well-fed and healthy across childhood for a long time.
Is height mostly genetic?
Within a single well-fed population, differences between individuals are largely genetic. But the differences between countries — and the huge increases over the last century — are driven far more by environment than by genes. The clearest evidence is change over time: average heights in many countries have risen by around ten centimetres in a hundred years, far too fast for genetics to explain. When childhood nutrition and health improve, average height rises; when they stall, so does height.
Which countries are shortest, and why?
The shortest male averages, near 160 cm, are in Timor-Leste, and several South and Southeast Asian countries sit close behind. The pattern follows childhood nutrition and the burden of early-life illness rather than anything fixed about the populations — which is why height in many of these countries has been rising as living standards improve. The map is best read as a record of childhood conditions, not a ranking of peoples.
Why measure at age 19?
Because that is roughly when people reach their full adult height, so it captures the outcome of the entire growing period without waiting decades. It also means the map reflects relatively recent childhood conditions — the health and nutrition of those born around 2000 — rather than conditions from generations ago. That makes it a fairly current read on how well a country nourishes its children.
Where does the data come from?
From the NCD Risk Factor Collaboration (NCD-RisC), a network of health researchers coordinated through Imperial College London, published in The Lancet in 2020. It is the standard authoritative source for human height and is the same data Our World in Data republishes. It is free and openly licensed, and the figures here are refreshed from it. Each value carries its source and year.
SEE IT ON THE MAP
Everything in this guide is on the live Atlas map.