A height percentile tells you how your height compares to everyone else of the same age, gender, and country. If you're in the 80th percentile, you're taller than 80% of your demographic. This calculator uses CDC, NHS, and WHO growth chart data with a statistical normal distribution to place your height precisely on the spectrum.
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How to Use the Height Percentile Calculator
Wondering if you're tall, short, or right around average? Our free height percentile calculator places your height on a statistical curve based on your age, gender, and country. Instead of simply comparing yourself to one average number, you get a precise percentile that shows exactly where you stand.
Step 1: Enter Your Height
Enter your height in centimeters, or use the toggle to switch to feet and inches. If you're unsure of your exact height, measure yourself standing straight against a wall with your heels touching the baseboard. The most accurate reading is taken in the morning, as you can be slightly shorter by evening due to spinal compression throughout the day.
Step 2: Set Your Age and Gender
Select your current age and gender. Height percentiles are highly dependent on gender, since men and women have significantly different average heights in every country. Age matters too — the height percentile calculator uses age-group data to account for generational height differences and properly compare you with your peers, not with a different cohort.
Step 3: Choose Your Country
Average heights vary considerably between countries. The Dutch are among the tallest populations globally, while countries in Southeast Asia and South America tend to have lower average heights. Selecting your country ensures you're being compared to the correct reference population. The calculator uses data from national health surveys and the WHO for each country.
Step 4: Read Your Percentile
After clicking "Calculate My Percentile," you'll see your height percentile as a large number. A result of 72 means you are taller than 72% of people of your age and gender in your country. The distribution chart shows where your height falls on the bell curve, and the reference table shows the heights at key percentile markers (5th, 25th, 50th, 75th, 95th).
Understanding the Normal Distribution
Human heights in a given population closely follow a normal distribution (bell curve), with most people clustered around the average and fewer people at the extremes. The 50th percentile is the exact median — half the population is taller, half is shorter. Being in the top or bottom 5% means your height is statistically unusual for your demographic.
Data Sources
The calculator uses mean height and standard deviation data sourced from the CDC National Health and Nutrition Examination Survey (NHANES) for the US, the NHS Health Survey for England, and WHO global health observatory data for other countries. Height distributions are calculated using the standard normal CDF (Phi function).
Frequently Asked Questions
Is this height percentile calculator free?
Yes, the height percentile calculator is completely free to use. There is no signup, no account, and no hidden fees. Everything runs locally in your browser — your data never leaves your device.
Is my data safe and private?
Absolutely. All calculations run entirely in your browser using JavaScript. Your height, age, gender, and country are never sent to any server or stored remotely. No personal data is collected.
How is the height percentile calculated?
The calculator uses height distribution data (mean and standard deviation) sourced from national health surveys such as the CDC (US), NHS (UK), and WHO growth charts. It then applies the normal distribution cumulative distribution function (CDF) to find what percentage of people in your demographic are shorter than you.
What does the 75th percentile mean for height?
Being at the 75th percentile means you are taller than 75% of people of your same age, gender, and country. Only 25% of people in your demographic are taller than you. The 50th percentile represents the exact average height.
Why does my percentile change between countries?
Average heights vary significantly between countries due to genetics, nutrition, healthcare access, and living conditions. For example, the Dutch are among the tallest populations in the world, so the same height will rank lower in the Netherlands than in Japan.
Does height percentile change with age?
Yes, average adult heights differ somewhat by age group due to generational changes in nutrition and healthcare. Children and teenagers grow rapidly, so their height percentile is measured against others in the same age group using growth chart data.
What is the average height for adults?
Average heights vary by country and gender. In the US, the average adult male is about 175.4 cm (5'9") and the average adult female is about 161.5 cm (5'3.5"). Dutch men average around 182.9 cm — among the tallest in the world.
Can I use feet and inches instead of centimeters?
Yes. The calculator includes a unit toggle so you can enter your height in either centimeters (metric) or feet and inches (imperial). Just flip the toggle before entering your height.