Size It Up — free daily size guessing game online
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How to play Size It Up
- Compare. The black silhouette is the reference — drawn at true scale, with its real measurement labeled. Everything is judged against it.
- Resize. Slide on the board, drag the bottom scale, or tap − / + until the white silhouette looks right next to the reference. Use the top-right buttons to zoom the whole board if you need room.
- Lock in. Press Lock in. The true size is drawn in red over your guess, with the real number, how far off you were, and your points.
- Finish five rounds. Later rounds count more (×2, ×3). A perfect day scores 1,000 points.
What is the Size It Up game?
Size It Up is a free online daily size guessing game. You resize silhouettes of animals, vehicles, landmarks, dinosaurs, and everyday objects until they look correct beside a known reference — no typing, no multiple choice, just your eye for scale.
Every player gets the same five comparisons each day. Practice anytime, keep a streak in your browser, and learn anchors you can reuse (a person is about 1.7 m, a car about 4.5 m long). Our library currently includes 391 sourced silhouette objects.
Play Size It Up free on the web — mobile and desktop friendly, no account required. Search for “Size It Up game”, “daily size guessing game”, or “size comparison silhouette puzzle” to find today’s challenge.
Frequently asked questions
- What is Size It Up?
- Size It Up is a free daily size guessing game. Each round shows a black reference silhouette at true scale and a white target you resize until the proportion looks right, then lock in to see the real measurement in red.
- How do you play Size It Up?
- Compare the reference, drag the board or use the bottom slider and +/− buttons to resize the white silhouette, then press Lock in. The true size appears as a red outline with your score. Complete five rounds for up to 1,000 points.
- How is the Size It Up score calculated?
- Scoring uses ratio accuracy. Within about 6% of the true size scores 100 base points; half or double scores 45; five times off scores 0. Rounds 1–2 count ×1, round 3 ×2, rounds 4–5 ×3.
- Do I need an account?
- No. Size It Up runs in the browser. Your streak is stored locally on your device.