升 means “sho (about 1.8 liters), measuring box”

しょう · shou

Also: 1.8 liter

Kun'yomi (Japanese reading)
ます
On'yomi (Chinese reading)
ショウ

JLPT N1 · Taught in secondary school · 4 strokes

The story

Picture a dipper tipping out grain: 升 is the sho, about 1.8 liters, the size of a big 一升瓶 of sake. On a baby's first birthday, families strap an 一升餅, a sho of rice cake, to the child's back, a pun on 一生, a whole life.

Used in 一升瓶 (isshoubin, 1.8-liter bottle), 升目 (masume, grid square), and 一升餅 (isshoumochi, first-birthday rice cake)

More from Old Measures

Learn 升 and more kanji free on Fuji Learning · All kanji

Readings from KANJIDIC2, © EDRDG, CC BY-SA.