Sedentary
1,482kcal
140 lb, 5 ft 4 in
Lightly active
1,698kcal
Moderately active
1,914kcal
Very active
2,130kcal
Show the math
BMR = 10 × 63.5 kg + 6.25 × 162.6 cm − 5 × 51 − 161 = 1,235
Calories per day by weight and activity
A 51-year-old woman, 5 ft 4 in tall.
| Weight | Sedentary | Light | Moderate | Very active |
|---|---|---|---|---|
| 120 lb | 1,373 | 1,573 | 1,774 | 1,974 |
| 140 lb | 1,482 | 1,698 | 1,914 | 2,130 |
| 160 lb | 1,591 | 1,823 | 2,055 | 2,287 |
| 180 lb | 1,700 | 1,948 | 2,196 | 2,443 |
| 200 lb | 1,809 | 2,072 | 2,336 | 2,600 |
| 220 lb | 1,917 | 2,197 | 2,477 | 2,756 |
| 240 lb | 2,026 | 2,322 | 2,617 | 2,913 |
| 260 lb | 2,135 | 2,447 | 2,758 | 3,069 |
Calories to lose weight at 51
| Weight | Lose 1 lb/week | Lose 0.5 lb/week |
|---|---|---|
| 120 lb | 1,200 | 1,323 |
| 140 lb | 1,200 | 1,448 |
| 160 lb | 1,323 | 1,573 |
| 180 lb | 1,448 | 1,698 |
| 200 lb | 1,572 | 1,822 |
| 220 lb | 1,697 | 1,947 |
| 240 lb | 1,822 | 2,072 |
| 260 lb | 1,947 | 2,197 |
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.
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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 51-year-old woman eat?
About 1,482 to 1,914 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 51-year-old woman eat to lose weight?
Roughly 500 fewer than maintenance for about 1 lb a week, for example 1,200 a day at 140 lb if lightly active.