An HRT dosage chart lines up the strengths of estradiol and progesterone across the routes they come in, so you can see where a given dose sits. For oral estradiol, 0.5 mg a day is low, 1 mg is the standard starting dose, and 2 mg is the top of standard menopause labeling. For patches, 0.025 mg a day is low and 0.05 mg is standard. Micronized progesterone runs 100 mg nightly continuously, or 200 mg for 12 to 14 nights in a cyclic regimen.
Every number on this page is a published label range or a prescriber reference point, not a recommendation for you. Doses are set and changed by the person prescribing them, using your symptoms and history. Nothing here is a formula for adjusting your own hormone replacement therapy.
Estradiol dose levels across routes
The single most useful thing a chart can show is that the same effect is reached with very different numbers depending on how the hormone gets in. This is the cross-route comparison for menopause dosing.
| Dose level | Oral estradiol | Estradiol patch | Estradiol gel | What it is used for |
|---|---|---|---|---|
| Ultra-low (micro) | 0.5 mg/day | 0.014 to 0.025 mg/day | Divigel 0.25 mg | The 0.014 mg patch is approved for bone protection, not hot flashes |
| Low | 0.5 to 1 mg/day | 0.025 to 0.0375 mg/day | About 0.5 mg, roughly 1 small pump | A common gentle start, often early in the transition |
| Standard | 1 to 2 mg/day | 0.05 mg/day | 0.75 to 1 mg, Estrogel 1 pump is 0.75 mg | The usual symptom-control range |
| High (menopause ceiling) | 2 mg/day | 0.075 to 0.1 mg/day | Divigel 1.25 mg, or 2 or more pumps | Top of standard menopause labeling |
Read these as rough anchors across routes rather than exact swaps, because gel concentrations differ by product.
Why 1 mg oral is not 1 mg through the skin
Swallowed estradiol is absorbed through the gut and passes through the liver before reaching the rest of your body. That first pass converts a large share of it to estrone, a weaker estrogen. After an oral dose the estradiol-to-estrone ratio typically sits around 1 to 5. Through the skin it is closer to 1 to 1 or 2 to 1.
That is why a 0.05 mg patch is treated as broadly comparable to a 1 mg tablet instead of matching by number. It also explains why transdermal routes are usually preferred for anyone with extra clot risk: skin delivery does not drive up the liver clotting factors that oral estrogen does. Switching routes is a prescriber calculation, not arithmetic you do at home.
Is 1 mg of estradiol a low dose?
No. One milligram of oral estradiol a day is the standard menopause starting dose, sitting in the middle of the licensed range rather than at the bottom. FDA labeling for oral estradiol gives an initial dose of 1 to 2 mg daily, adjusted to control symptoms.
Is 0.5 mg estradiol a low dose? Yes. Half a milligram is the lowest ordinary tablet strength and counts as low-dose therapy. Plenty of people are started here and stay here, particularly if symptoms are mild or they are early in perimenopause.
The confusion is understandable, because "low dose" is not a special product. It is the smallest strength of the same medicine.
Estradiol patch dosage chart
Patches are the most commonly prescribed route in current practice. The available strengths and how often you change them depend on the brand.
| Patch type | Strengths (mg per 24 hours) | Change frequency | Examples |
|---|---|---|---|
| Twice-weekly matrix | 0.025, 0.0375, 0.05, 0.075, 0.1 | Two per week | Vivelle-Dot, Minivelle, Alora, Dotti, Lyllana |
| Once-weekly | 0.025, 0.0375, 0.05, 0.06, 0.075, 0.1 | One per week | Climara |
| Ultra-low bone patch | 0.014 | One per week | Menostar |
Typical label starting points are 0.0375 or 0.05 mg per 24 hours for twice-weekly patches, and 0.025 mg for once-weekly, with maintenance across 0.025 to 0.1 mg. If you are choosing between products, our comparison of estradiol patch brands covers adhesion and skin tolerance, and the estradiol patch guide covers application and absorption.
Gels, sprays, rings and injections
| Form | Product | Strength per dose | Usual pattern |
|---|---|---|---|
| Gel packet | Divigel | 0.25, 0.5, 0.75, 1, 1.25 mg | Once daily to upper thigh, max 1.25 mg/day |
| Metered gel pump | Estrogel | 0.75 mg per pump | 1 pump daily to the arm |
| Metered gel pump | Elestrin | 0.52 mg per pump | 1 pump daily to upper arm |
| Spray | Evamist | 1.53 mg per spray | 1 to 3 sprays daily to the forearm |
| Vaginal ring, systemic | Femring | 0.05 or 0.1 mg/day | Replaced every 90 days |
| Injection | Depo-estradiol (cypionate) | 1 to 5 mg | Every 3 to 4 weeks |
| Injection | Delestrogen (valerate) | 10 to 20 mg | Every 4 weeks |
Local vaginal estradiol is a separate category. It treats dryness, irritation and urinary symptoms with almost no systemic absorption, which is why it does not carry the same risk profile and does not usually require progesterone alongside it.
Progesterone doses and why they are not a ratio
If you have a uterus and you take systemic estrogen, you need a progestogen to stop the uterine lining thickening. The dose is set by what protects the endometrium, not by matching your estrogen level.
| Regimen | Micronized progesterone | Pattern |
|---|---|---|
| Continuous combined | 100 mg | Every night, no bleed expected |
| Cyclic or sequential | 200 mg | 12 to 14 nights per cycle, monthly bleed expected |
| Synthetic progestins | 2.5 to 10 mg | Varies by agent, daily or sequential |
Micronized progesterone is usually taken at bedtime on an empty stomach, because it has a mild sedative effect. Taking it in the morning wastes that and can leave you drowsy.
On the "estrogen progesterone ratio calculator" idea: there is no validated ratio for menopause HRT, and no calculator that can set your progesterone dose from your estrogen dose. The concept comes from fertility and luteal-phase medicine and does not transfer. Whether you are on 0.05 mg or 0.1 mg of patch estradiol, the standard endometrial-protection dose of micronized progesterone is the same 100 mg nightly or 200 mg cyclically. Higher estrogen doses may prompt a prescriber to check the lining rather than raise progesterone proportionally.
What microdosing estrogen means
Microdosing usually refers to the bottom of the licensed range or below it: 0.5 mg oral estradiol, a 0.025 mg patch, or the 0.014 mg Menostar patch. The ultra-low patch is approved for preventing bone loss, not for controlling hot flashes, which is a distinction worth knowing before asking for it.
Some people microdose early in perimenopause, when their own estrogen is still fluctuating and a standard dose feels like too much. That is a reasonable starting position. It is not a safer permanent destination if it leaves your symptoms untreated, and undertreating has its own costs for bone and sleep.
How doses get adjusted
Clinicians generally wait 8 to 12 weeks before judging a dose. That is because symptom relief builds over weeks: hot flashes typically respond in four to six weeks, while mood and sleep can take three months. Our HRT timeline breaks that sequence down in detail.
Signs a prescriber may step the dose up:
- Hot flashes and night sweats still disruptive after 8 to 12 weeks at a steady dose
- Symptoms returning in the evening on a once-daily oral dose, which sometimes prompts splitting the dose instead
- Ongoing sleep disruption or vaginal symptoms despite good adherence
Signs a prescriber may step the dose down:
- Persistent breast tenderness or swelling beyond the first few months
- Nausea, headaches, or leg cramps that started with a dose increase
- Bleeding patterns that do not settle
Adjustments move one increment at a time. Jumping two strengths tends to produce side effects that get misread as intolerance to hormones in general.
If you miss a dose: take a tablet when you remember unless it is nearly time for the next one, in which case skip it. Replace a fallen-off patch and keep your normal change day. Do not double up. Missed micronized progesterone in a cyclic regimen is worth mentioning at review, since endometrial protection depends on completing the days.
Named protocols that sit outside standard labeling
You will run into private-practice protocols marketed under specific names, including the Powers Method, which target higher serum estradiol levels than standard labels and dose to blood levels rather than to symptoms.
What to know before considering one: these protocols are not part of major menopause guideline recommendations, the doses often exceed FDA-approved labeling for menopause, and peer-reviewed outcome data supporting them is limited compared with the standard ranges above. That does not make every element of them wrong, and dosing to serum levels has a legitimate role in some situations. It does mean the risk conversation is different, and it should be an explicit conversation with whoever prescribes it rather than something you infer from a chart online. Compounded preparations raise separate questions covered in our guide to bioidentical hormone therapy.
Monitoring while on HRT
For most people over 45 starting standard-dose menopause HRT, routine estradiol blood tests are not required, because the dose is titrated to symptoms. Testing is more common when someone is on injections, on higher doses, absorbing unpredictably, under 45, or not responding as expected.
What a review typically covers: symptom response, blood pressure, side effects, bleeding pattern, and whether the current dose is still the lowest one doing the job. Reviews are usually annual once you are stable, with an earlier check at three months after any change. Bone density scanning and mammography follow their own schedules rather than being HRT-specific.
What to do next
If you are trying to work out where your current dose sits, find your route in the first table and note whether you are at low, standard, or the ceiling. Bring that to your review along with what is and is not resolved. If you have not started yet, the starting guide covers timing, the first dose, and what the first three months look like.
Frequently Asked Questions
What is the standard starting dose of estradiol for menopause?
One milligram a day orally, or a 0.0375 to 0.05 mg patch, are the usual starting points in FDA labeling. Prescribers often begin lower, at 0.5 mg oral or a 0.025 mg patch, particularly in early perimenopause or for anyone easing in.
How much progesterone protects the uterus?
The standard is 100 mg of micronized progesterone nightly with continuous estrogen, or 200 mg for 12 to 14 nights per cycle in a sequential regimen. The dose does not scale with your estrogen dose.
What is the highest dose of HRT for menopause?
Two milligrams of oral estradiol daily, or a 0.075 to 0.1 mg patch, is the top of standard menopause labeling. Higher doses exist but belong to other uses, such as gender-affirming care, and are not menopause dosing.
Can I convert my oral dose to a patch dose myself?
No. The routes are not linearly equivalent because oral estradiol passes through the liver first, and the conversion also changes your clot risk profile. Route switches are a prescriber decision.
How long before a dose gets reviewed?
Usually 8 to 12 weeks. Hot flashes often improve in four to six weeks, but mood, sleep and cognitive symptoms need longer, so judging a dose earlier tends to mean changing it unnecessarily.
Does a higher estradiol dose mean more risk?
Not in a simple linear way. Route matters more than dose for clot risk, since transdermal estrogen avoids the liver first pass. Duration and the progestogen component matter more for breast risk. Our page on HRT and cancer risk covers what the evidence actually shows.