How many calories per day should a woman eat?

Most adult women maintain weight on roughly 1,800-2,200 calories per day, depending on size and activity. Sedentary or smaller women may sit near 1,600; active women can need 2,400+. The estimate from a TDEE calculation is more reliable than any single average.

How many calories per day to lose weight?

Subtract 300-500 from your maintenance (TDEE). For many adults that lands between 1,400 and 1,900 per day. Going below 1,200 isn't advised without medical supervision.

Is 2,000 calories a day right for everyone?

No. The 2,000-calorie figure is a labeling reference set by the FDA for nutrition panels, not a personal target. Individual needs range widely — from ~1,400 to over 3,000 — based on body size, muscle, and activity.

How Many Calories Per Day Do You Actually Need?

How many calories per day you need is the question behind every diet, and the honest answer is: it depends on four things — sex, age, body size, and activity. The “2,000 calories a day” figure everyone quotes is an FDA labeling reference, not a personal target. Your real number could be 1,500 or 2,900.

The ranges most people fall into

These are maintenance estimates — the intake at which weight holds steady:

Adult women: ~1,600-2,200/day (sedentary to active)
Adult men: ~2,000-2,800/day
Older adults (65+): lower, as muscle mass and activity decline
Very active / physical jobs: can exceed 3,000

These are starting points, not prescriptions. A 90 kg active man and a 55 kg sedentary woman can differ by 1,400 calories a day.

Calculate your actual number

Two steps. First, BMR (resting energy) via the Mifflin-St Jeor equation — the most accurate common formula. Then multiply by an activity factor (1.2 sedentary to 1.9 very active) to get TDEE, your real daily calories. The TDEE calculator does both in one step.

How many calories per day for women specifically

Women’s needs run lower than men’s mainly because of body size and muscle mass, not sex itself — the equations account for this directly. A 30-year-old, 65 kg, 165 cm, lightly active woman has a maintenance of roughly 1,900 calories/day. During pregnancy and breastfeeding needs rise (an extra ~340-450 in later pregnancy, ~500 while breastfeeding, per ACOG). Menopause tends to lower the number as activity and muscle decline.

To lose, gain, or maintain

Once you know maintenance:

Lose: −300 to −500/day (≈ 0.3-0.45 kg/week)
Maintain: at your TDEE
Gain: +150 to +300/day

The number isn’t fixed forever — it falls as you lose weight and with age. Recalculate after a meaningful change in weight or activity, and remember that the accuracy of any target depends entirely on logging your intake honestly.

Frequently asked questions

How many calories per day should a woman eat?: Most adult women maintain weight on roughly 1,800-2,200 calories per day, depending on size and activity. Sedentary or smaller women may sit near 1,600; active women can need 2,400+. The estimate from a TDEE calculation is more reliable than any single average.
How many calories per day to lose weight?: Subtract 300-500 from your maintenance (TDEE). For many adults that lands between 1,400 and 1,900 per day. Going below 1,200 isn't advised without medical supervision.
Is 2,000 calories a day right for everyone?: No. The 2,000-calorie figure is a labeling reference set by the FDA for nutrition panels, not a personal target. Individual needs range widely — from ~1,400 to over 3,000 — based on body size, muscle, and activity.