Weight

Weight is a measure of how far a character can be knocked back horizontally by an attack, if damage is held constant. It also affects vertical knockback in concert with falling speed.

It is usually considered an advantage for a character to be heavy; however, extra weight can make characters slightly more susceptible to combos. A notable example in Melee is that characters with lower than 87 weight fall down when hit by Fox's shine, and thus are invulnerable to his shine combos.

SSB Weight Ranking

This is the ranking of characters in the first installment. It was recently calculated by Blue Ninjakoopa and is listed from heaviest to lightest.

Super Smash Bros. Weight List
Very Heavy	Heavy	Medium	Light	Very Light
1. Donkey Kong	2.Samus 3.Link 4.Captain Falcon	5.Yoshi 6.Mario 7.Luigi	8. Fox 9. Ness	10. Kirby 11. Pikachu 12. Jigglypuff

SSBM Weight Ranking

Following are the characters in Super Smash Bros. Melee, ranked in order of heaviest to lightest. This list is based on horizontal knockback on the Mushroom Kingdom 2 weight scale and is featured on Mew2King's website of statistics. Mew2King credits Blake Mutschler and Aaron Kurtz for having calculated these data. The Metal Box multiplies a character's base weight by 3, the Super Mushroom by 8/5ths, and the Poison Mushroom by 5/8ths.

Rank	Character	Weight (NTSC)	Weight (PAL)
1	Bowser	117	118
2	Donkey Kong	114	114
3 (NTSC) 4 (PAL)	Samus	110	110
4 (NTSC) 5 (PAL)	Ganondorf	109	109
5 (NTSC) 3 (PAL)	Yoshi	108	111
6-7	C. Falcon	104	104
6-7	Link	104	104
8-10 (NTSC) 8-9 (PAL)	Dr. Mario	100	100
8-10 (NTSC) 8-9 (PAL)	Luigi	100	100
8-10 (NTSC) 10 (PAL)	Mario	100	98
11	Ness	94	94
12-14	Peach	90	90
12-14	Sheik	90	90
12-14	Zelda	90	90
15	Ice Climbers	88	88
16 (NTSC) 16-19 (PAL)	Marth	87	85
17-19 (NTSC) 16-19 (PAL)	Mewtwo	85	85
17-19 (NTSC) 16-19 (PAL)	Roy	85	85
17-19 (NTSC) 16-19 (PAL)	Young Link	85	85
20-21	Falco	80	80
20-21	Pikachu	80	80
22 (NTSC) 23 (PAL)	Fox	75	73
23 (NTSC) 22 (PAL)	Kirby	70	74
24-25	Jigglypuff	60	60
24-25	Mr. Game & Watch	60	60
26	Pichu	55	55

SSBB Weight Ranking

Here is the order of characters' weights in Brawl. These weights were calculated by MrSilver.

Rank	Character	Weight
1	Bowser	1.111
2	Donkey Kong	1.096
3	Snake	1.076
4	King Dedede	1.071
5	Charizard	1.061
6	Ganondorf	1.056
7	Samus	1.051
8-9	Wario	1.045
8-9	Yoshi	1.045
10-11	R.O.B.	1.040
10-11	Waluigi	1.040
12	Ike	1.035
13-14	Captain Falcon	1.030
13-14	Link	1.030
15	Wolf	1.020
16-17	Ivysaur	1.010
16-17	Lucario	1.010
18	Mario	1.000
19	Luigi	0.995
20	Sonic	0.985
21-23	Lucas	0.980
21-23	Ness	0.980
21-23	Pit	0.980
24	Diddy Kong	0.975
25-26	Ice Climbers	0.970
25-26	Toon Link	0.970
27	Peach	0.960
28	Marth	0.944
29-30	Sheik	0.935
29-30	Zelda	0.935
31-32	Falco	0.919
31-32	Olimar	0.919
33	Zero Suit Samus	0.914
34	Fox	0.910
35-36	Meta Knight	0.904
35-36	Pikachu	0.904
37	Kirby	0.899
38-39	Mr. Game & Watch	0.884
38-39	Squirtle	0.884
40	Jigglypuff	0.849

References

• Brawl weight list and falling speed calculations