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How Big Are Things?
Home     Welcome
small Real
world

big     solar system between galaxy
nano
micro
meter
kilo
Mega
Giga
Tera
Peta
Exa
  millimeter's Room - looking at a sheet of graph paper
  mm = 10-3 m
look at the entire room
 
galaxy21
 20
19
local stars18
 17
16
between15
 14
13
E's orbit12
 11
10
sun9
 8
7
texas6
 5
4
hood3
 2
1
you0
 -1
-2
salt grain-3
 -4
-5
bacteria-6
 -7
-8
atom-9
10-3 m    1 mm
10-2 m    10 mm
10-1 m    100 mm

    grain of salt ~ 1 mm marble ~ 10 mm

child's hand ~ 100 mm

img
by Lynn Bry
softball ~ 100 mm

src

src ping pong     src

"hundreds" (100 mm, ~4 in)
0
1
2

0

1

2

3

4

5

6
inches

src

european starling original image by Phil Myers, src src

Sea level rise, annual (global average over the last decade) src

eyeball src

... ... ... raindrops src

Thumbnail of microfloor.

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