Measurement notes
Where the sizes come from
Sizedle has 194 objects. Real things vary — whales grow, buildings get new antennas, and no two cats are alike — so each object uses one representative figure, rounded to a sensible precision. The rules below explain how that figure is picked.
Which dimension
Every object is measured along its longest side, and every object page says which: height for people, statues, towers and mountains; length for animals, vehicles and bridges; wingspan for birds and aircraft; diameter for balls, coins and asteroids.
How figures are chosen
- Animals: a typical adult, nose to tail tip unless noted — not the record holder.
- Dinosaurs and prehistoric animals: commonly cited estimates from well-known specimens. These carry real uncertainty and are labelled “estimated”.
- Buildings and towers: official architectural height, or height to the tip where the page says so.
- Mountains: elevation above sea level from current survey figures.
- Vehicles, aircraft and spacecraft: manufacturer or agency specifications for a named model.
- Sports and everyday objects: regulation or standard sizes (ISO card, NBA court, size 5 ball).
Accuracy
Scoring gives full points within 6%, and 90 points within 12%, so the small disagreements you find between references rarely change a score.
The silhouettes are simple original shapes drawn for the game. They show proportions, not exact outlines, and each is scaled so its longest side matches the measured size.