SizerooGuessroo · All sizes

How tall is the dome of St. Peter's Basilica?

136.6 mAbout 448.2 ft · Building-sized

About 136.6 m to the top of the cross.

A red kangaroo would need about 17 hops (8 m each) to cover it.

136.6 m
a Hollywood sign letter

To scale: St. Peter's dome is about 10× bigger than a Hollywood sign letter.

Think you can guess sizes? Play today's Sizeroo

Things about the same size

Many real things vary in size, so we use a typical or official figure. Spotted a mistake? Email [email protected].