A quick webtool for a Monday morning. Planet Compare is a handy site for science teachers who want to demonstrate the relative size of each of the planets in our solar system.

Planet compare

The tool includes 3d models of all 8 planets, plus Pluto and the Sun.

Simply click on the first planet, then the second to see them side by side. You can also double-click anywhere on planet 1 to “stick” the other planet onto its surface – handy for comparing a planet like Pluto to somewhere on Earth like Europe.


It’s a neat little website that’s worth a few minutes of your time to explore. Check it out here.

If you like this, also check out these tools for Visualising the Big and the Small.