How big is a house key?
6 cm long · 2.4 in
A typical door key is about six centimeters long.
Paperclip 3.3 cm
House key 6 cm
Compared with things you know
- A house key is about 8.6× the length of a grain of rice Grain of rice: 7 mm
- A house key is about 1.8× the length of a paperclip Paperclip: 3.3 cm
- A house key is about 1/2.5 the height of a Smartphone Smartphone: 15 cm
- A house key is about 1/28 the height of an average person Average person: 1.7 m
Think you could size it by eye? Sizedle uses it as a reference for other objects.
Similar everyday things
- Rubik's Cube 5.7 cm wide 2.2 in
- AA battery 5.1 cm long 2 in
- Credit card 8.6 cm wide 3.4 in
- LEGO brick 3.2 cm long 1.3 in
- US quarter 2.4 cm across 1 in
- Dollar bill 15.6 cm long 6.1 in