How big is 3.5 city blocks?
It's about 300,000,000 times as big as a US Dime
The size of a US Dime is about 0.00000001160 city blocks.
(United States ten-cent coin) (a.k.a. Roosevelt dime)
The dime, in its current design since 1946, has a diameter of 17.91 mm (0.705 in) and an area of 0.00000001160 city blocks.
It's about 1,000,000,000 times as big as a Nailhead
The size of a Nailhead is about 0.0000000035810 city blocks.
(for 11-gauge wire nai)
An 11-gauge nailhead measures 0.0000000035810 city blocks. Nails have been used since ancient times; archaeologists have discovered Ancient Egyptian nails that are over 5,000 years old.
It's about 0.0000000005 times as big as The Land area of Earth
The size of The Land area of Earth is about 6,861,100,000 city blocks.
The Earth has a land area of 6,861,100,000 city blocks. Only an estimated one-eighth of this area — or 857,660,000 city blocks — is inhabitable by humans, with uninhabitable terrain such as deserts and high mountains covering the rest.
It's about 100,000,000,000 times as big as a Ballpoint Pen Tip
The size of a Ballpoint Pen Tip is about 0.0000000000320 city blocks.
(a.k.a. Biro, a.k.a. ball pen, a.k.a. dot pen) (for medium tip)
The most common size of ballpoint pen — a medium-tip — measures 0.0000000000320 city blocks. A typical ballpoint pen can write more than 8,500 m (28,000 ft) before running out of ink.