Menopause Age Calculator: Can You Predict It?

There’s no definitive menopause age calculator, but there are some things that can predict whether you’ll reach menopause early. The age when you reach menopause is down to a complicated mix of your genes, lifestyle, and medical history.

To make things more complicated, some people go through early menopause. So accurately predicting things is not always so easy. Here’s what we know.

In this article: 📝

How do you calculate menopause age?

You hit the official age of menopause when you haven’t had a period for a calendar year. On average, we reach the menstruation finish line just after 52 — an average range of between 45 and 55. [1]

But while it’s easy to work out the average age of menopause, it’s more complicated to predict when it will happen for you. What makes it extra tricky is that entering menopause isn’t like flipping a switch. You might have years of perimenopause symptoms as your body gradually stops producing the hormones that control your periods.

And it’s hard to pinpoint the average age when perimenopause begins because everyone experiences those symptoms differently. While some symptoms (like hot flashes) are difficult to miss, others can be more ambiguous. Many women feel low or have mood swings because of their hormone levels.

But there can be a lot of other factors to deal with at this time — career, finances, and family issues are just some of the plates you may have spinning right now. Basically, while most women go through menopause in their 40s or 50s, they might have symptoms that come and go for about 7 years or even more. [1]

And while we have a definition for when menopause ends, it’s much harder to calculate the average age when the menopause journey begins.

What is the most common age to go through menopause?

In the absence of a crystal ball or a definitive menopause age chart, your genetics might be the most helpful tool you have for predicting when your periods will check out for good. According to the Office on Women’s Health, the average age for menopause is 52, but the most common age to go through menopause is… about the same age as your mother. [2,3]

Put simply, if your mother went through menopause at 54, there’s a decent chance you’ll also go through menopause at 54, plus or minus a year or two. Depending on your family medical history, though, there are a lot of exceptions to this rule.

For example, if your mother was 40 when she went through menopause, but her sisters and mother were in their 50s, she was probably an outlier, and you’re more likely to take after your other female relatives. And if your mother smoked or had a condition that generally brings menopause forward (more on this later), your period will probably stick around for longer than hers did.

Most women will experience menopause sometime between the ages of 40 and 58 — but it's possible for it to start later, too. Menopause can also start much earlier — which, of course, can be highly distressing for women who want to become mothers. No one quite knows what causes early menopause, but about 1% of women experience menopause before the age of 40. [4]

Can periods just suddenly stop at 49?

Technically, they can, but usually, it's more of a gradual thing than a sudden stop.

Yes, menopause is defined as the exact moment in time you've reached 12 months without a menstrual period. But it's more the case that your period will become lighter and/or less regular over a couple of years.

Again, nuance is important here. For women with PCOS, perimenopause symptoms can overlap—including irregular or missed periods. And research shows that menopause can be delayed by two years for women with PCOS. [5]

Other factors that help to predict menopause age

You can’t postpone or predict menopause, but you can identify the things that might make it earlier. Perimenopause symptoms are rooted in the decreasing level of hormones like estrogen in your body.

Since a lot of these hormones are produced by your ovaries, anything that damages your ovaries can bring menopause forward.

We’re talking about:

• Smoking: The harmful chemicals in cigarettes can damage your ovaries and bring menopause forward by an average of 1–3 years. [6,7]
• Surgery: If you’ve had surgery to remove your ovaries, it’s more likely that you’ll reach earlier menopause. [8]
• Medical treatments: Chemotherapy or radiotherapy patients often go through temporary menopause. Even if your periods come back again after such a serious illness, there’s a good chance that menopause will happen earlier. [9]
• Certain medical conditions: Some chronic illnesses (like an over- or underactive thyroid) can affect the balance of hormones in your body. Others might damage your organs over time like endometriosis or autoimmune conditions like lupus. There’s an overlap between people with these conditions and those who reach menopause before the average age of 52. [10,11]

How do you know when menopause starts?

Menopause marks the time in your life 12 months after you have your last period. Your period stops because your ovaries stop releasing eggs. While menopause is technically a moment in time, it’s better understood as a phase where your body goes through a transition from one life stage to another.

Before you hit menopause, you go through what’s called perimenopause. Over this period, your body goes through a major hormonal shift. Hence all those crazy symptoms we love to hate.

Because you no longer need estrogen and progesterone to help out with your menstrual cycle, your ovaries stop producing these hormones — and this change can have all sorts of interesting effects on your body.

But the fascinating thing is, while some women go through a whole lot over this time, others don’t really experience anything at all. Perimenopause often begins in your 40s, a year or two before you stop having your period for good.

But it can start much earlier and/or go on for much longer. About 1% of women go through menopause before they hit 40. This is early menopause and it can put you at greater risk for health complications like osteoporosis. (Basically, you spend more time without the benefits that estrogen brings.) [4,12]

While we don’t always know for sure what causes early menopause, there some risk factors may make it more likely to happen sooner:

• Genetic factors. If your mama went through early menopause, you might, too
• Undergoing chemotherapy
• Having ovarian surgery
• Autoimmune diseases
• Epilepsy
• Smoking — various studies have revealed a link between exposure to smoke and menopause. [13]

If you think you're going through early menopause, talk to your doctor to see if treatments like Hormone Replacement Therapy (HRT) are right for you.

When does perimenopause start?

Menopause begins with a stretch of about three to five years when your fertility hormones are slowly declining — this is perimenopause. While perimenopause can start for some women in their mid to late 30s, the average age is between 40-47. It’s quite a wide range for an average, but because the symptoms can last for a few years without being detected, it's tricky to pinpoint exactly when perimenopause starts.

During the perimenopause stage, you may experience some of the classic symptoms, like:

• 🥵 Hot flashes
• 🔥 Night sweats
• 🥱 Sleep disturbances or insomnia
• ❤️‍🩹 Elevated heart rate
• 🎈Bloating
• 😵‍💫 Anxiety and depression
• 😴 Fatigue
• 🫠 Mood swings
• 🌵Vaginal dryness and sometimes discomfort during sex
• Irregular periods
• Bone density loss
• Loss of libido
• Thinning hair (and hair that grows in new places)
• Tender or sore breasts. They may also start morphing into a new shape (or even getting bigger).

Every woman is unique. While some women will experience all of the symptoms, others won’t experience any at all. Both are normal.

Quick note: it may still be possible to get pregnant during perimenopause — harder, yes, but possible.

Is there a test for menopause?

There aren’t really any accurate ways to test for menopause. While tests that track your FSH levels claim to test for menopause, they’re not often accurate, as our FSH levels fluctuate at different points in our menstrual cycles.

While menopause on average starts around the age of 52 (according to the stats), you may well have been experiencing hot flashes, difficulty sleeping, or joint pain for a few years already by that point. It’s all part of your declining hormone levels during that period known as perimenopause.

Ultimately, the best way to “test” for menopause is to keep track of any unusual symptoms and visit your doctor. And if you haven’t had a period for 12 months (and you’re not pregnant), you may have finally arrived at destination menopause.

There’s just no one way to have this experience. Whenever menopause begins for you, we’re in this together.

And however much we can’t predict about menopause, we’re certain that the Peanut Community is there for you.