AMH Interpretation Calculator

Compare an anti-Müllerian hormone result against age-based reference ranges to understand ovarian reserve — what AMH predicts, and importantly, what it does not.

🌸 Lab Value📐 AMH compared against age-specific reference ranges🏥 Health
Result units
AMH result
Age (years)
Context
Please enter valid values.

Formula & Reference

VariableSymbolFormulaUnits
AMH Interpretation Calculator—AMH compared against age-specific reference rangesng/mL

Step-by-Step Examples

Example 1
Age-Typical Result

AMH 2.4 ng/mL at age 33.

  • Approximate median for 30–34: 2.6 ng/mL
  • Result is about 92% of the age median
  • Within the broad normal range
✓ 2.4 ng/mL — age-appropriate
Example 2
Low for Age

AMH 0.4 ng/mL at age 31.

  • Approximate median for 30–34: 2.6 ng/mL
  • Result is about 15% of the age median
  • Below 0.5 suggests diminished ovarian reserve
  • Relevant for stimulation planning, less so for natural conception
✓ 0.4 ng/mL — low for age
Example 3
Elevated Result

AMH 8.2 ng/mL at age 27, investigating irregular cycles.

  • Well above the median of 3.5 for this age band
  • Elevated AMH commonly accompanies PCOS
  • Reflects a high count of small antral follicles
✓ 8.2 ng/mL — elevated, consistent with PCOS pattern

Real-World Applications

🧪
IVF Protocol Planning
AMH is one of the best available predictors of how many eggs ovarian stimulation will produce, which shapes protocol and dose selection.
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Cycle-Independent
Unlike FSH, AMH can be measured at any point in the cycle, which makes it practical for testing.
🌸
PCOS Assessment
Elevated AMH reflects increased small antral follicle numbers and is used as supporting evidence in PCOS evaluation.
📊
Reserve Not Quality
AMH estimates how many eggs remain, which is a different question from how viable those eggs are.

Common Mistakes to Avoid

⚠️
Reading AMH as a fertility score

AMH predicts response to ovarian stimulation. It is a poor predictor of natural conception — studies in women without infertility find low AMH does not meaningfully reduce the chance of conceiving naturally.

⚠️
Ignoring the effect of hormonal contraception

Combined hormonal contraception can lower measured AMH by roughly a fifth to a quarter. A result taken while on the pill may understate true reserve.

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Comparing results across laboratories

AMH assays are not fully standardised, and results from different platforms are not directly interchangeable. Serial monitoring should use the same laboratory.

Frequently Asked Questions

What does AMH measure? ▾
Anti-Müllerian hormone is produced by small growing follicles, so its level correlates with the size of the remaining ovarian follicle pool — ovarian reserve.
Does low AMH mean I cannot get pregnant? ▾
No. AMH predicts response to fertility treatment, not natural fertility. Research in women without known infertility finds low AMH does not substantially reduce natural conception chances.
Does AMH measure egg quality? ▾
No. It estimates quantity only. Egg quality is driven mainly by age, and no blood test currently measures it directly.
Does the contraceptive pill affect AMH? ▾
Yes — combined hormonal contraception typically lowers measured AMH, so ideally testing is done off it or the result interpreted with that in mind.
Why is AMH high in PCOS? ▾
PCOS involves an increased number of small antral follicles, each producing AMH, which raises the total measured level — often two to three times typical values.

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