# Size It Up

> A free daily game about the size of real-world objects.

Players compare two objects and resize one until their proportions look right. Each daily challenge has five rounds, worth up to 100 points each and 500 points in total. A new challenge begins at 00:00 UTC. There is no timer, and guests can play without signing in.

The About page explains how dimensions and their sources are selected, how measurements are defined, and how the illustrations relate to those measurements. Source links appear with revealed answers and in the completed round review.

## Game and leaderboards

- [Play Size It Up](https://sizeitup.xyz/): Today's five-round challenge and answers to common gameplay questions.
- [Size It Up: Geography](https://sizeitup.xyz/geography): Compare north-up country outlines in five daily rounds, using approximate east–west or north–south spans rather than land area. Progress and leaderboards are separate from Classic.
- [Daily leaderboard](https://sizeitup.xyz/leaderboard/daily): Submitted scores for the current UTC daily challenge.
- [This month’s leaderboard](https://sizeitup.xyz/leaderboard/monthly): Ranked by average submitted daily score for the current UTC month, with total points and days played also shown.
- [All-time leaderboard](https://sizeitup.xyz/leaderboard/all-time): Ranked by average submitted daily score across all challenges, with total points and days played also shown.

## Rules and past challenges

- [How to play Size It Up](https://sizeitup.xyz/how-to-play): Controls, scoring examples, daily rules, and a short gameplay video.
- [Past Classic challenges](https://sizeitup.xyz/archive): Replay completed five-round challenges for practice, with answers and measurement sources published after the UTC day ends. Practice scores do not count toward leaderboards or today's progress.
- [Past Geography challenges](https://sizeitup.xyz/geography/archive): Practice completed country comparisons and explore their measurement context. Replays do not count toward leaderboards or today's progress.

## About and support

- [About Size It Up](https://sizeitup.xyz/about): Game rules, measurement sources, illustration limitations, and guest play.
- [Contact](https://sizeitup.xyz/contact): Feedback, questions about measurements, and support at service@sizeitup.xyz.
- [Privacy](https://sizeitup.xyz/privacy): Guest progress, identity cookies, Google and email sign-in, public scores, email delivery, site usage measurement, and external avatars.