What is the largest moon of Jupiter?

Io
Callisto
Ganymede
Europa
Ganymede is the largest and most massive moon of Jupiter and in the Solar System. It has a diameter of 5,268 km and is 8% larger than the planet Mercury, although only 45% as massive.
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Answers by country

Io
Callisto
Ganymede
Europa
answers
flagGreece
8%
8%
83%
0%
12
flagIndia
7%
3%
82%
5%
230
flagPakistan
0%
0%
82%
17%
17
flagFrance
20%
0%
80%
0%
10
flagAustria
15%
6%
77%
0%
45
flagthe Philippines
12%
12%
75%
0%
16
flagthe United States
11%
3%
65%
18%
108
flagSwitzerland
0%
23%
64%
11%
17
flagGermany
18%
3%
63%
13%
202
flagthe United Kingdom
18%
3%
63%
13%
61
flagRepublic of Ireland
18%
12%
62%
6%
16
flagPoland
13%
11%
55%
18%
5478
flagthe Netherlands
18%
18%
54%
9%
11
flagCanada
10%
20%
50%
20%
10
flagAustralia
19%
9%
48%
16%
31