What Is a Normal Estradiol Level?
Normal ranges: Estradiol (Premenopausal) 30–400 pg/mL (varies by cycle phase); Estradiol (Postmenopausal) <30 pg/mL (expected). Values outside these ranges may point to a condition that needs further evaluation.
Reference Range Table
| Marker | Low | Normal | High |
|---|---|---|---|
| Estradiol (Premenopausal) | Below 30 pg/mL — low estrogen | 30–400 pg/mL (varies by cycle phase) | Above 400 pg/mL — mid-cycle peak or supplementation |
| Estradiol (Postmenopausal) | N/A | <30 pg/mL (expected) | Above 30 pg/mL — possible HRT or other source |
What Affects Your Results
Menstrual cycle phase (levels peak at ovulation), pregnancy, birth control pills, hormone replacement therapy, body weight, age, and time of day.
When to Retest
For fertility evaluation, test on cycle day 2-5. For perimenopause monitoring, every 6-12 months. If on HRT, per your provider's schedule.
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