WHIRLWIND EXPLANATION: Pokémon have a fixed, permanent score from 0 to 31 for each stat that affects how good that stat can ever get.

This calculator will figure out that score (called a "gene" or, more obtusely, an "IV") for you, so you can discard the unworthy. It's more accurate for higher-level Pokémon, so it's helpful to go into a level 100 wifi battle with someone and check your Pokémon's stats from there.

Stat calculator

Magneton
Magneton 		Base
stats		 Stats Effort Stats Effort Stats Effort Stats Effort Possible genes (IVs)
Level Level Level Level
HP 50
70–79
72–81
74–83
78–88
6
Attack 60
41–50
42–51
43–53
45–56
18
Defense 95
62–71
63–73
65–75
69–80
22
Special Attack 120
77–86
79–89
81–91
86–97
4
Special Defense 70
47–56
48–58
49–59
52–63
6
Speed 70
47–56
48–58
49–59
52–63
5

Congratulations, you've narrowed your Pokémon's stats down exactly!

This Magneton's Hidden Power inflicts Flying damage, with 54 power.

And for your copy/pasting pleasure:

6 HP; 18/22 Physical; 4/6 Special; 5 Speed

or start over