How to Correctly Identify Normal Testosterone Levels

Determining the correct testosterone levels for your age, and reaching an optimal zone, can greatly increase your odds of successful treatment.

When testosterone levels are maximized; it enables the energy, strength, and motivation needed to live a full life.

But if they aren't managed properly, or your symptoms of low testosterone remain after treatment, it can lead to an alternatively frustrating experience (as I'm sure many of you can attest to).

Although the research on healthy testosterone levels has generally been scant up until this now, I was able to find a couple good studies indicating average ranges in the male population at large.

The following free and total blood testosterone tables, indicate the downwards trend as men age.

Unit Conversion Calculator

Total Testosterone (x 0.0347) Free Testosterone (x 10, 0.0347, 34.7)
ng/dl ng/dl
nmol/L pg/ml
nmol/L
pmol/L

Average Testosterone Levels by Age in Men

Vermeulen, A. (1996). Declining Androgens with Age: An Overview. In Vermeulen, A. & Oddens, & B. J. (Eds.), Androgens and the Aging Male (pp. 3-14). New York: Parthenon Publishing.
Measurements in SI Units (nmol/L)
Age Number
of
Subjects
Total
Test
Stand.
Dev.
Free
Test
Stand.
Dev.
SHBG Stand.
Dev.
25-34
45
21.38
5.90
0.428
0.098
35.5
8.8
35-44
22
23.14
7.36
0.356
0.043
40.1
7.9
45-54
23
21.02
7.37
0.314
0.075
44.6
8.2
55-64
43
19.49
6.75
0.288
0.073
45.5
8.8
65-74
47
18.15
6.83
0.239
0.078
48.7
14.2
75-84
48
16.32
5.85
0.207
0.081
51.0
22.7
85-100
21
13.05
4.63
0.186
0.080
65.9
22.8

Measurements in Conventional Units (ng/dl), SHBG in (nmol/L)
Age Number
of
Subjects
Total
Test
Stand.
Dev.
Free
Test
Stand.
Dev.
SHBG Stand.
Dev.
25-34
45
617
170
12.3
2.8
35.5
8.8
35-44
22
668
212
10.3
1.2
40.1
7.9
45-54
23
606
213
9.1
2.2
44.6
8.2
55-64
43
562
195
8.3
2.1
45.5
8.8
65-74
47
524
197
6.9
2.3
48.7
14.2
75-84
48
471
169
6.0
2.3
51.0
22.7
85-100
21
376
134
5.4
2.3
65.9
22.8

Normal Testosterone Levels in Men (Non-Diabetic)

Simon, D., Nahoul, K., & Charles M.A. (1996). Sex Hormones, Aging, Ethnicity and Insulin Sensivity in Men: An Overview of the TELECOM Study. In Vermeulen, A. & Oddens, and B. J. (Eds.), Androgens and the Aging Male (pp. 85-102). New York: Parthenon Publishing.
Measurements in SI Units (nmol/L)
Age Number
of
Subjects
Mean
Total
Test
Stand.
Dev.
Median
Total
Test
5th % 10th % 95th %
<25
125
23.97
5.48
24.15
14.15
16.22
33.12
25-29
354
23.18
7.14
22.08
13.46
15.18
34.84
30-34
330
21.53
6.72
20.70
12.07
13.46
33.81
35-39
212
20.70
6.55
19.66
11.39
13.46
32.77
40-44
148
20.70
6.87
20.70
11.04
13.11
32.43
45-49
154
18.91
5.66
18.28
11.39
12.42
29.32
50-54
164
18.87
6.49
17.94
10.01
12.07
32.43
55-59
155
19.14
6.04
18.97
11.04
11.73
30.01

Measurements in Conventional Units (ng/dl)
Age Number
of
Subjects
Mean
Total
Test
Stand.
Dev.
Median
Total
Test
5th % 10th % 95th %
<25
125
692
158
697
408
468
956
25-29
354
669
206
637
388
438
1005
30-34
330
621
194
597
348
388
975
35-39
212
597
189
567
329
388
945
40-44
148
597
198
597
319
378
936
45-49
154
546
163
527
329
358
846
50-54
164
544
187
518
289
348
936
55-59
155
552
174
547
319
338
866

Male Testosterone Levels in an Unhealthy Population

Depending on the lab your doctor uses, male testosterone levels typically range between 250ng/dl and 850 ng/dl.

As you may well imagine, these ranges are not set to optimal levels. They are from a cross section of men aged 20 to 80; many of whom may be sick or diseased, from a lifetime of unhealthy habits.

If your blood work arrives, and your doctor happens to refuse treatment - even though your levels are close to the bottom of the range; then a gentle reminder of what optimal health entails may be in order.

If you kindly point out, you have the T levels of a sick 80 year old (and feel like one at that); hopefully your doctor will come around.

Emphasize your Low Testosterone Symptoms

If your doctor is stubborn, or doesn't like their patients being active participants in their own healthcare - you may be better off emphasizing the symptoms more specific to low testosterone.

Noting a loss of sex drive, the development of impotence, and/or reduced muscle mass and strength; should give any knowledgeable doctor a red flag that T levels aren't on par.

Depression, fatigue, and loss of motivation are also commonly caused by low testosterone. Unfortunately, many doctors would rather prescribe an antidepressant than bring back to normal, a natural substance your body already makes.

Doctor being Stubborn? Up the Ante to Ensure Treatment

If all else fails (as sad as it may seem), play the desperation/victim card. Maybe tell him your you're at the cusp of getting fired, due to poor work performance.

Or alternatively, your wife/girlfriend has threatened to leave; over sex drive/impotence problems or recent lack of ambition.

Most doctors with a soul will come around, once you explain the seriousness of your case. And if they don't, shop around. Eventually you'll find someone who's sympathetic, as tough as that search may be.

Check my resources section at the top of the page; to find a highly rated doctor in your area, specializing in hormone replacement therapy.

Good Luck!

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