Ovarian Reserve Calculator — Interpret Your AMH Level by Age

Your Age (years)

AMH Level (ng/mL)

AMH Unit

⚠️ Please check your inputs

📊 Your Results

📖 How Ovarian Reserve Is Measured — and What AMH Actually Tells You

Ovarian reserve is the number of eggs (follicles) remaining in your ovaries. Every woman is born with a fixed pool of roughly 1–2 million eggs, which declines continuously from birth — long before any symptom appears. Because you cannot count the eggs directly, clinicians use two proxy markers: AMH (anti-Müllerian hormone), produced by the small growing follicles in your ovaries, and antral follicle count (AFC), obtained via transvaginal ultrasound.

AMH is the more convenient of the two: it needs only a blood draw, can be taken on any day of your cycle, and is remarkably stable. This calculator converts your result into the standard unit (ng/mL) if needed, compares it against the reference range for your five-year age band, and estimates your likely response to ovarian stimulation for IVF.

The single most important thing to understand: AMH measures quantity, not quality. A low AMH does not mean you cannot conceive naturally — it means you have fewer eggs remaining than average for your age, and therefore a shorter remaining window. Many women with AMH below 0.5 ng/mL conceive unassisted, while some women with a high AMH struggle due to egg quality or other factors. Treat this number as a planning tool, not a verdict.

Typical AMH Reference Ranges by Age

Median and low-threshold values commonly used in reproductive endocrinology clinics. Ranges vary slightly between assays, so always compare against the reference range printed on your own lab report.

Age Band	Median AMH (ng/mL)	Low Reserve Threshold	Typical AFC	Expected IVF Response
Under 25	3.4	Below 1.5	18–30	High — risk of OHSS
25–29	2.8	Below 1.3	15–25	Good to high
30–34	2.2	Below 1.1	12–20	Good — ideal range
35–39	1.5	Below 0.8	8–15	Moderate
40–44	0.8	Below 0.5	4–10	Lower, cycle-dependent
45–49	0.4	Below 0.2	2–6	Low — donor eggs often discussed

Note: where the table above is used for guidance, the calculator applies the same age-band medians and low thresholds shown here, so the two agree.

Unit Conversion

labs in the US and much of Asia report AMH in ng/mL, while UK, Irish and most EU labs use pmol/L. The conversion factor is 7.14: multiply ng/mL by 7.14 to get pmol/L, or divide pmol/L by 7.14 to get ng/mL. For example, 1.4 ng/mL ≈ 10.0 pmol/L. Mixing these up is the most common reason a perfectly normal result looks alarming.

💡 Who Uses This Calculator

🩸 Just got an AMH result back

You had the test for fertility assessment or as part of an IVF workup, and the report gives a number with no interpretation. Enter it here to see instantly whether it falls below, within, or above the range for your age band.

📅 Deciding whether to delay children

If you are 30–38 and weighing "wait two more years", ovarian reserve staging gives you a data point on remaining fertility window. It is not a guarantee either way, but it converts a vague anxiety into information you can discuss with a specialist.

💉 Preparing for IVF stimulation

AMH is the single strongest predictor of how many eggs a stimulation cycle will retrieve. Knowing whether you are likely to be a low, normal, or high responder helps you and your clinic anticipate protocol and dosage decisions.

🔁 Tracking a trend over time

AMH declines naturally each year. Running the same calculation across two tests 12–24 months apart shows whether your decline is tracking the expected age-related slope or steeper than typical.

⚠️ Medical disclaimer: This calculator is an educational tool, not a diagnosis. Ovarian reserve alone does not determine your fertility, and AMH results differ meaningfully between assay platforms and even between labs. Do not make reproductive decisions — including decisions about delaying or pursuing treatment — based on this number alone. Bring your actual lab report to a reproductive endocrinologist or your GP for interpretation.

❓ Frequently Asked Questions

Does a low AMH mean I can't get pregnant naturally?

No. AMH reflects how many eggs remain, not whether they work. Plenty of women with AMH under 0.5 ng/mL conceive without assistance because it only takes one healthy egg to ovulate in a given cycle. What a low result does mean is a narrower remaining window and a lower chance that any single IVF cycle retrieves many eggs.

Can I raise my AMH level?

There is no proven way to increase the number of eggs you have — the pool is fixed at birth. Vitamin D deficiency, smoking, and some medical treatments (chemotherapy, ovarian surgery) can lower AMH, so correcting a deficiency or stopping smoking may help you reach your true baseline. Supplement marketing claiming to "boost AMH" is not supported by strong evidence.

Why did my AMH change between two tests?

Small fluctuations are normal and can come from different assay platforms, different labs, recent hormonal contraceptive use, or simply the natural year-on-year decline. A drop of more than roughly 20–30% in a single year is worth raising with your clinician. Always compare results from the same laboratory where possible.

Is AMH accurate while on birth control?

Combined hormonal contraceptives can suppress AMH readings by roughly 20–30% in some studies, because they reduce the activity of the small growing follicles that produce the hormone. If you are on the pill and your result looks unexpectedly low, ask your clinician whether a repeat test off contraception is appropriate.

What is a good AMH for IVF?

There is no single "good" value — the useful question is whether your level predicts a workable egg yield. Levels between roughly 1.0 and 3.5 ng/mL usually indicate a normal responder who can expect multiple eggs per cycle. Below 0.5 ng/mL suggests a low responder, where clinics may adjust protocol; above 4.0 ng/mL raises the risk of ovarian hyperstimulation syndrome (OHSS) and typically calls for a gentler protocol.