The Size It Up game is a free daily browser puzzle by Magnitudle where you resize a silhouette until it matches its real size next to a known object. Each day brings five comparisons worth up to 100 points each, so the perfect score is 500. It takes about two minutes, needs no download, and is surprisingly hard: most of us are much worse at judging size than we think.
| Quick facts | |
|---|---|
| Game | Size It Up |
| Made by | Magnitudle |
| Genre | Daily visual size-estimation puzzle |
| Rounds | 5 per day |
| Score | Up to 100 per round, 500 total |
| Price | Free, plays in the browser |
| Other editions | Size It Up: Pop Culture, Size It Up: Geography |
| Where to play | Size It Up on Magnitudle |
How does Size It Up work?
The screen shows a grid with two silhouettes standing on the same floor line. The blue one is the reference: its size is fixed to scale. The red one is the target: you drag its corner handle to make it longer or taller until it looks right. When you are happy, press Lock In.
Under the grid the game tells you exactly what you are looking at. In our run on 11 November 2026 the reference was a credit card (the ISO/IEC 7810 ID-1 size used by bank cards) and the target was a LEGO 2×4 brick. The label also tells you which side counts: “length to scale” for the card, “adjust the length” for the brick.
Scoring: how close is close enough?
After you lock in, Size It Up reveals:
- your points for the round (out of 100),
- your answer in centimetres,
- the real size,
- how far off you were, as a percentage.
The rule is simple: a closer estimate earns more points. In our test, guessing 7.67 cm for a brick that is really 3.18 cm long was off by 141% and still got 24 points. Later, guessing 4 cm for an ostrich egg that is 15.6 cm tall was “only” 74% off but earned just 7 points. Being too small hurts a lot, so do not be shy with big objects.
Daily game, archive and editions
| Edition | What you compare | Best for |
|---|---|---|
| Size It Up (daily) | Everyday objects, animals, things you know | Everyone, quick daily habit |
| Size It Up: Pop Culture | Famous characters from pop culture | Fans and trivia lovers |
| Size It Up: Geography | Countries, states and regions | Map nerds |
| Archive | Past daily games | Practising or catching up on missed days |
The Geography edition is the trickiest, because maps fool our eyes. In our sample round, Germany was the reference and you had to size New Mexico next to it.
Magnitudle says it keeps a provenance record for every shape: artwork made for the game, or material from public-domain or licensed sources, with credits on its artwork sources page.
7 tips to score closer to 500
- Read both labels before you drag. Check whether the round is about length or height. Sizing the wrong side is the fastest way to lose points.
- Anchor on real numbers. A bank card in the ID-1 size is 85.6 × 53.98 mm. A regulation table tennis ball is 40 mm across. If you know the reference, estimate the target in centimetres first, then drag.
- Think in “how many fit”. Ask how many references would line up along the target. Three cards? Half a ball? Counting is more reliable than eyeballing.
- Use the zoom buttons. Zoom out when the target should be much bigger than the reference, so you do not stop early just because the screen feels full.
- Do not shrink big things. Our results show that guessing too small can cost more than guessing too big. When in doubt with eggs, animals or buildings, go a little bigger.
- Look at the answer screen. After each reveal, compare your shape with the real outline. It trains your eye for tomorrow.
- Practise with the archive. Past games are a free training ground before you share a daily score with friends.
Why daily puzzle games like this work
Size It Up follows the same recipe that made daily browser puzzles popular: one short set per day, the same puzzle for everyone, a clear score, and an archive for practice. For casual players that means a two-minute habit. For web game developers it is a reminder that a strong idea plus a clean interface can beat heavy graphics: two flat silhouettes, a grid and one drag handle carry the whole game.
FAQ
Is Size It Up free?
Yes. It plays in the browser for free, with no download.
How many rounds are there in Size It Up?
Five per daily game, each worth up to 100 points, for a maximum of 500.
Who makes Size It Up?
It is made by Magnitudle, which calls it the original daily visual size-estimation game.
Can I play old Size It Up puzzles?
Yes. Magnitudle has an archive of past daily games.
What are Size It Up Pop Culture and Geography?
They are extra editions: one uses famous characters from pop culture, the other uses countries and regions.
How is the score calculated?
The closer your size estimate is to the real size, the more points you get, up to 100 per round.
