DAILY NO. 4 · VERIFIED MEASUREMENTS

Size It Up answers – September 4, 2026

The five objects from the Size It Up puzzle on September 4, 2026, with the measured size of each, the reference it was compared against, a source you can check, and how the community's guesses landed. Want the surprise first? Replay this puzzle — archived days never touch your streak.

ROUND 1

Smartwatch4.5 cm

Answer: a smartwatch measures 4.5 cm (height), which is about 2.4× smaller than the reference, a light bulb at 11 cm.

Watch cases are sold by case diameter in millimetres, and 45 mm is a large one.

Common miss: players tend to inflate a smartwatch when it sits beside a light bulb — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 2

Roman Colosseum189 m

Answer: the Roman Colosseum measures 189 m (length / span), which is about 1.4× smaller than the reference, the RMS Titanic at 269 m.

The ancient amphitheatre is roughly 189 metres along its longest axis.

Common miss: players tend to inflate the Roman Colosseum when it sits beside the RMS Titanic — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 3

Manhattan Island21.6 km

Answer: Manhattan Island measures 21.6 km (height), which is about 57.4× smaller than the reference, California at 1,240 km.

Manhattan is about 21.6 kilometres long.

Common miss: players tend to inflate Manhattan Island when it sits beside California — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 4

Soda Can12.2 cm

Answer: a soda can measures 12.2 cm (height), which is 1.3× as big as the reference, a coffee mug at 9.5 cm.

The 330 ml can has kept essentially the same silhouette since 1963.

Common miss: players tend to compress a soda can when it sits beside a coffee mug — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 5

Birthday Cake25 cm

Answer: a birthday cake measures 25 cm (length / span), which is about 1.1× smaller than the reference, an American football at 28 cm.

A 25 cm round is the standard “serves twelve” size.

Common miss: players tend to inflate a birthday cake when it sits beside an American football — big things get squeezed, small familiar things get stretched.

Source ↗

Sizes are measured along the axis named in each round and link to their published source. Explore the full library by category, or read how scoring works.