How to play Size It Up
- Read the labels. One black silhouette is the reference with a known measurement. The white silhouette is your target.
- Resize the target. Use the slider until the target's height or length looks proportionally correct next to the reference.
- Lock in. The true size appears in red over your guess, with points and a fun fact.
- Finish five rounds in the daily puzzle or keep going in unlimited mode.
FAQ
- What is Size It Up?
- Size It Up is a free daily visual estimation game. Each round shows a reference object at true scale and a target you resize until the compared dimension looks correct.
- How is Size It Up scored?
- Scoring uses symmetric ratio error. Within about 6% 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 — up to 1,000 for a perfect daily run.
- Height vs length — which do I compare?
- Each round names the dimension (height or length). Compare only that axis — not overall width, wingspan, or silhouette area.
- Is there an unlimited mode?
- Yes. Unlimited mode draws random pairs from the same measurement library for practice without affecting the daily streak.