How long is the School ruler in humans?
Everyday things
0.18humans long
The School ruler is 30 cm long, the same as 0.18 average adults (1.70 m) stacked head to toe.
A classic ruler is one foot long, close to 30 cm.
Metres30 cm
Feet1 ft
Humans0.18
Bananas1.5
Measured end to end, lying down. Source.
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