Size It Up
Size It Up shows two things side by side, like an animal and a building. Resize one of them until it matches its real size compared with the other.
Size It Up rules in short
- Look at the pair
Two objects are shown, one fixed and one you can change.
- Resize
Drag to make the second object bigger or smaller.
- Lock it in
Submit when you think the sizes match real life. The game then shows the true size and how close you were.
Size It Up at a glance
- Made by
- Magnitudle
- Task
- Resize one object to its real world scale against another
- Objects
- Animals, landmarks, everyday things and more
- Modes
- Size It Up for real world things and Pop Culture for fictional ones
- Score
- How close your size is to the real one
- Price
- Free in the browser and the app
- Category
- Estimation games, size
Scale is harder than it looks
Size It Up, from the makers of Magnitudle, puts two things side by side and asks you to resize one to its real scale. A blue whale next to a bus, the Eiffel Tower next to a skyscraper, an ant next to a coin. Our sense of size is good up close and poor at the extremes, which is what makes it fun.
Sizing tricks
- Think in steps you can picture. A person is about 1.7 m tall. A bus is about 12 m long. A football pitch is about 100 m.
- Stack the smaller thing. How many people tall is this building? How many cars long is this animal?
- Remember that area and volume grow faster than height. Something twice as tall looks much bigger than twice the size.
Pop Culture and more
Size It Up covers real things, and the Pop Culture version does the same with things from films, games and shows. Both are free on the site and in the app, with a daily round and a streak to keep.
Questions people ask about Size It Up
How do you play Size It Up?
Two objects appear side by side. Drag one until its size looks right next to the other, then lock it in to see the real scale.
Is there a Size It Up archive or unlimited mode?
There is an archive. The Magnitudle site links a Size It Up archive of past rounds. We did not see a separate unlimited mode on its home page.
Who makes Size It Up?
Size It Up is part of Magnitudle, a site with daily estimation games.
What is Size It Up Pop Culture?
A second mode on Magnitudle where you match the scale of fictional things, like characters from films and games.
What kind of things are in Size It Up?
Animals, landmarks, everyday objects and more, always shown in pairs.
Is Size It Up free?
Yes. It is free in the browser, and there is also an app.
Ways to get better at Size It Up
- Think in a unit you know, like a person's height, and compare both objects to it.
- Animals are often smaller than people think, and buildings much bigger.
- Do not rush the last few pixels. Small changes matter for the score.
Facts checked on 2026-11-04. Size It Up belongs to Magnitudle. Megadle is not linked to it.