How big can a natural bodybuilder get? These numbers represent your projected natural muscle mass limits using the Casey Butt formula and method.
Estimates are for 10% bodyfat, 7 inch wrist circumference, and 8.75 inch ankle circumference. All measurements, including height, is listed in inches. If you are large boned, your potential will be several pounds heavier then the presented numbers.
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“Base muscle” mass is your weight minus all fat.
|
HEIGHT |
WEIGHT |
BASE MUSCLE |
BICEPS |
THIGHS |
|
62 |
164.7 |
148.2 |
16.1 |
23.3 |
|
63 |
168.7 |
151.8 |
16.2 |
23.5 |
|
64 |
172.7 |
155.4 |
16.3 |
23.7 |
|
65 |
176.8 |
159.1 |
16.5 |
23.9 |
|
66 |
180.9 |
162.8 |
16.6 |
24.0 |
|
67 |
185.0 |
166.5 |
16.7 |
24.2 |
|
68 |
189.2 |
170.3 |
16.8 |
24.4 |
|
69 |
193.3 |
174.0 |
17.0 |
24.6 |
|
70 |
197.6 |
177.8 |
17.1 |
24.8 |
|
71 |
201.8 |
181.6 |
17.2 |
25.0 |
|
72 |
206.1 |
185.5 |
17.3 |
25.1 |
|
73 |
210.4 |
189.4 |
17.4 |
25.3 |
|
74 |
214.7 |
193.2 |
17.6 |
25.5 |
|
75 |
219.1 |
197.2 |
17.7 |
25.7 |
|
76 |
223.5 |
201.2 |
17.8 |
25.9 |
|
77 |
227.9 |
205.1 |
17.9 |
26.0 |
|
78 |
232.4 |
209.2 |
18.1 |
26.2 |
|
79 |
236.9 |
213.2 |
18.2 |
26.4 |
|
80 |
241.4 |
217.3 |
18.3 |
26.6 |
According to this chart, I’m right at my maximum “natural potential”, and I’ve only been lifting for a year and a half, and I started when I was almost 30. Most of my gains came in my first 9 months, using Arnold’s 6 day splits, I put on 40 lbs. in that period of time, and I wasn’t eating nearly enough protein.
J.Ja
Justin,
You’re probably pretty close. it only took me 2 years to get to mine, and I’ve made little progress since. I don’t each as much protein as many say I need either. Please stop by the forum. I would like to see your progress pictures.
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