Calories per day by weight and activity
A 27-year-old woman, 5 ft 4 in tall.
| Weight | Sedentary | Light | Moderate | Very active |
|---|---|---|---|---|
| 120 lb | 1,517 | 1,738 | 1,960 | 2,181 |
| 140 lb | 1,626 | 1,863 | 2,100 | 2,337 |
| 160 lb | 1,735 | 1,988 | 2,241 | 2,494 |
| 180 lb | 1,844 | 2,113 | 2,382 | 2,650 |
| 200 lb | 1,953 | 2,237 | 2,522 | 2,807 |
| 220 lb | 2,061 | 2,362 | 2,663 | 2,963 |
| 240 lb | 2,170 | 2,487 | 2,803 | 3,120 |
| 260 lb | 2,279 | 2,612 | 2,944 | 3,276 |
Calories to lose weight at 27
| Weight | Lose 1 lb/week | Lose 0.5 lb/week |
|---|---|---|
| 120 lb | 1,238 | 1,488 |
| 140 lb | 1,363 | 1,613 |
| 160 lb | 1,488 | 1,738 |
| 180 lb | 1,613 | 1,863 |
| 200 lb | 1,737 | 1,987 |
| 220 lb | 1,862 | 2,112 |
| 240 lb | 1,987 | 2,237 |
| 260 lb | 2,112 | 2,362 |
Lightly active. Never below 1,200 kcal without medical supervision.
How age changes it
Each extra decade lowers resting burn by about 50 calories in the Mifflin-St Jeor equation, all else equal. Muscle matters more: strength training and enough protein help keep your burn up as you age.
How to use it
- Enter your numbers. Switch between US and metric units at any time.
- Results update as you type, and the formula is shown so you can check it.
- Copy the link, save the plan on this device, or print it for your next appointment.

These are estimates, not a diagnosis. A clinician can account for your health history and medicines.
Nearby ages
Common questions
How many calories should a 27-year-old woman eat?
About 1,626 to 2,100 a day at 140 lb, depending on activity, to maintain weight. Your weight and height shift it; see the table.
How many calories should a 27-year-old woman eat to lose weight?
Roughly 500 fewer than maintenance for about 1 lb a week, for example 1,363 a day at 140 lb if lightly active.