Your sense-of-scale notebook

Object size library.

Explore 48 objects across 6 categories. Keep a few familiar measurements in mind for your next game.

Measurements are revealed here. Play today’s game first →

Two objects. One scale.

Make your own comparison.

Explore the worked examples ↗

Blue whale length is about 2.49× city bus length.

City bus · 12 m · length
Blue whale · 29.9 m · length

Bars compare the named linear measurements, not area, volume or mass.

Browse the game library

Small anchors. Big perspective.

48 objects

Read the measurement, then compare.

These are the reference values used by the game. Animal specimens and manufactured models vary. Building heights may include an antenna or pedestal; each entry names the convention where available.

Geography compares approximate east–west or north–south spans. Pop Culture uses representative fictional scales, which can change between versions. Comparing a height with a length is a comparison of those two measurements, not a claim that one object is larger in every direction.

Measurement conventions and artwork credits →