AMH ng/mL vs pmol/L: Conversion Chart & What Your Result Means
Convert AMH between ng/mL and pmol/L instantly. Conversion chart, normal ranges in both units, and why your lab might use different units than online resources.
Your lab report says 8.5 pmol/L. But everything online talks about ng/mL. Is that good or bad? Don't panic — it's just a unit difference. This guide gives you an instant conversion chart, explains why different countries use different units, and shows you what your AMH level means in both ng/mL and pmol/L.
AMH ng/mL to pmol/L: How to Convert
The conversion is simple: multiply ng/mL by 7.14 to get pmol/L, or divide pmol/L by 7.14 to get ng/mL. The standard conversion factor is 7.14 (based on the molecular weight of AMH).
- ng/mL → pmol/L: Multiply by 7.14
- pmol/L → ng/mL: Divide by 7.14
- Example: AMH 2.0 ng/mL = 14.28 pmol/L
- Example: AMH 10 pmol/L = 1.4 ng/mL
AMH Conversion Chart: Common Values
Here's a quick reference chart for the most commonly encountered AMH values:
- 0.3 ng/mL = 2.1 pmol/L (very low)
- 0.5 ng/mL = 3.6 pmol/L (low)
- 1.0 ng/mL = 7.1 pmol/L (low-normal)
- 1.5 ng/mL = 10.7 pmol/L (normal)
- 2.0 ng/mL = 14.3 pmol/L (normal)
- 2.5 ng/mL = 17.9 pmol/L (normal-good)
- 3.0 ng/mL = 21.4 pmol/L (good)
- 4.0 ng/mL = 28.6 pmol/L (high-normal)
- 5.0 ng/mL = 35.7 pmol/L (high — may indicate PCOS)
- 7.0 ng/mL = 50.0 pmol/L (very high — likely PCOS)
- 10.0 ng/mL = 71.4 pmol/L (very high — evaluate for PCOS)
Why Do Different Countries Use Different Units?
The US, Australia, and most Asian countries typically report AMH in ng/mL. The UK, Europe, and many international labs report in pmol/L. This is simply a regional convention — the actual measurement is identical, just expressed in different units. Confusion arises when you compare your result to online resources that use the other unit.
- ng/mL countries: USA, Canada, Australia, Japan, South Korea, India
- pmol/L countries: UK, Germany, France, Netherlands, Scandinavia, most of Europe
- Both used: Some international labs report in both units on the same report
AMH Normal Ranges in pmol/L by Age
If your lab reports in pmol/L, here are the normal ranges by age group:
- Under 25: 15-45 pmol/L (average ~25 pmol/L)
- 25-30: 12-35 pmol/L (average ~20 pmol/L)
- 30-35: 8-25 pmol/L (average ~15 pmol/L)
- 35-38: 5-18 pmol/L (average ~10 pmol/L)
- 38-40: 3-14 pmol/L (average ~7 pmol/L)
- 40-43: 1-10 pmol/L (average ~4 pmol/L)
- Over 43: 0.5-5 pmol/L (average ~2 pmol/L)
Common Conversion Pitfalls to Avoid
Watch out for these common mistakes when converting or comparing AMH values:
- Wrong conversion factor: Some older sources use 7.14, others use 7.0 or 7.2 — stick with 7.14
- Comparing across labs: Even in the same unit, different assays (Beckman Coulter, Roche, Elecsys) may give slightly different values
- Mixing up units: Don't compare your pmol/L result to ng/mL reference ranges — always convert first
- Rounding errors: Small differences (e.g., 1.39 vs 1.40 ng/mL) are clinically insignificant
Related Reading
For the complete guide, read AMH levels explained with normal ranges and fertility meaning. Check where your level falls on the AMH levels by age chart. Ready to interpret your number? See AMH test results explained.
Key takeaways
- Multiply ng/mL × 7.14 = pmol/L. Divide pmol/L ÷ 7.14 = ng/mL.
- US/Australia use ng/mL; UK/Europe use pmol/L — same measurement, different expression
- AMH 1.0 ng/mL = 7.14 pmol/L = low-normal depending on age
- Always compare your result to age-adjusted ranges in the correct unit
- The AMH Analyzer accepts both units and converts automatically
Frequently asked questions
Is 8 pmol/L a good AMH level?
8 pmol/L equals approximately 1.1 ng/mL. Whether this is 'good' depends entirely on your age. At 30, it's below average. At 40, it's perfectly normal. Use the AMH Analyzer to see your exact percentile for your age.
Why is my AMH different when retested at another lab?
Different labs may use different AMH assays (Beckman Coulter vs Roche Elecsys), which can give slightly different results — typically within 10-20% of each other. For tracking trends, try to use the same lab and assay each time.