SizeComparedAbout SizeCompared
SizeCompared is a free visual height and size comparison tool. Put people, celebrities, animals, vehicles, buildings, mountains, oceans and planets on one accurate scale, see the height difference, and share or export the result.
How the scale works
Every item is drawn from its real measurement in centimetres. Silhouettes are scaled so their height on screen matches that measurement exactly; people use realistic body proportions for their height and build. Length, weight and area modes use the same measured data.
Where the numbers come from
- Buildings and towers: Council on Tall Buildings and Urban Habitat (CTBUH) and official owner figures.
- Planets, moons and stars: NASA fact sheets.
- Average heights by country: NCD Risk Factor Collaboration; child growth: World Health Organization growth standards.
- Country areas: CIA World Factbook (Pakistan: Pakistan Bureau of Statistics).
- Athletes: official league and tour listings (NBA, ATP, WTA, clubs). Celebrity heights that are not officially published are marked as reported.
- Human evolution: Smithsonian Human Origins Program; values marked “estimate” come from published predictions.
Some values are estimates, and every estimate is labelled on the site. Spotted a mistake? Tell us via the contact page and we will correct it.