TDEE Calculator for Women: How Many Calories You Really Burn

If you've ever wondered "how many calories should I actually be eating?", the honest answer starts with one number: your TDEE, Total Daily Energy Expenditure, the calories your body burns in a day. Get this right and everything downstream (fat loss, maintenance, eating enough) becomes straightforward. Get it from a generic chart or a crash-diet number, and you're guessing. Here's how women can find their true maintenance and use it well.

Pin it

What TDEE is

Your TDEE is your maintenance level, eat that many calories and your weight stays stable. It's built from your Basal Metabolic Rate (calories burned at rest) multiplied by an activity factor. To lose fat you eat below it; to gain you eat above it. Everything begins here.

The TDEE Calculator estimates yours from your age, height, weight, and activity using the Mifflin-St Jeor equation, the most accurate general formula for healthy adults.

Why the female formula differs

The equation uses a sex-specific term because, on average, women carry less muscle and have a smaller average body size, and muscle burns more calories at rest. That's why a woman's TDEE is typically lower than a similarly-aged man's. But it's an average, not your destiny, a strong, active, taller woman can have a higher maintenance than a smaller, sedentary man. The calculator personalises it to you, which is the whole point.

Hormones, your cycle, and TDEE

Female physiology adds some nuance, but less than you'd fear:

• Across the menstrual cycle, energy burn rises slightly in the luteal phase (after ovulation), and appetite often climbs with it. The effect is small and averages out over the month, no need to change targets weekly. Track your menstrual cycle and training if you want to work with it.
• The fluctuations are mostly water, not fat. Judge progress by your weekly average weight, not day-to-day readings, which can swing a kilo or more around your period.

Pin it

Menopause and the metabolic shift

Around perimenopause and menopause, falling oestrogen is linked to muscle loss and a redistribution of fat, which nudges maintenance calories down. The answer is not to keep slashing calories. It's to protect muscle with resistance training and higher protein, which defends your metabolic rate and body composition. Recalculate your TDEE as your weight and activity change, and see is perimenopause weight gain permanent for the full strategy. For a tailored figure, the Menopause Calorie Calculator accounts for this stage.

A worked example, and why the scale isn't the whole story

Take a 45-year-old woman, 165cm, 68kg, office job with two or three workouts a week. The calculator estimates her BMR near 1,380 and, at a lightly-to-moderately active level, a TDEE around 2,050.

From there her plan is gentle arithmetic:

• To hold steady: around 2,050 calories.
• For fat loss: a moderate 20% deficit puts her near 1,640, sustainable, and a world away from a punishing 1,200.
• Protein: prioritised at 1.8-2.0g/kg to protect muscle through this stage.

But here's what I'd want her to hold alongside the numbers: her body composition can be improving even when the scale is stubborn. As she protects muscle with protein and lifting, she may lose fat and gain a little muscle at once, so the scale barely moves while her clothes fit better, her energy steadies, and she feels stronger. The number on the scale is only part of the story, and in this decade it's often the least informative part.

Look at more than the scale

Because hormonal water shifts and slow recomposition can mask real progress, I encourage women to track a small handful of signals together rather than living and dying by one morning's weigh-in:

• Weekly average weight, not daily readings.
• How your clothes fit, often the truest mirror of fat loss.
• Energy, sleep, and mood, which tell you the plan is nourishing, not depleting, you.
• Strength in your workouts, a sign you're keeping the muscle that matters most now.

When most of those are trending the right way, the plan is working, even on a week the scale sulks. That fuller picture is what keeps women going through a stage where the scale alone can be quietly discouraging.

How to use your number

1. Maintenance: eat around your TDEE to hold steady.
2. Fat loss: subtract a moderate deficit (15-25%), for most women this lands well above the dreaded 1,200. Use the Calorie Deficit Calculator.
3. Set macros: split your target with protein high using the Macro Calculator.
4. Recalculate every 4-5kg of weight change, since a lighter body burns less.

Pin it

The takeaway

Your TDEE is the single most useful number in your nutrition, and as a woman it's worth calculating properly rather than defaulting to a generic low-calorie target. Find your real maintenance with the TDEE Calculator, subtract a sensible deficit, protect your muscle with protein and lifting, and let your weekly trend, not the daily scale, tell you the truth.