Sedentary
1,350kcal
140 lb, 5 ft 4 in
Lightly active
1,547kcal
Moderately active
1,744kcal
Very active
1,941kcal
Show the math
BMR = 10 × 63.5 kg + 6.25 × 162.6 cm − 5 × 73 − 161 = 1,125
Calories per day by weight and activity
A 73-year-old woman, 5 ft 4 in tall.
| Weight | Sedentary | Light | Moderate | Very active |
|---|---|---|---|---|
| 120 lb | 1,241 | 1,422 | 1,603 | 1,784 |
| 140 lb | 1,350 | 1,547 | 1,744 | 1,941 |
| 160 lb | 1,459 | 1,672 | 1,884 | 2,097 |
| 180 lb | 1,568 | 1,796 | 2,025 | 2,254 |
| 200 lb | 1,677 | 1,921 | 2,166 | 2,410 |
| 220 lb | 1,785 | 2,046 | 2,306 | 2,567 |
| 240 lb | 1,894 | 2,171 | 2,447 | 2,723 |
| 260 lb | 2,003 | 2,295 | 2,587 | 2,880 |
Calories to lose weight at 73
| Weight | Lose 1 lb/week | Lose 0.5 lb/week |
|---|---|---|
| 120 lb | 1,200 | 1,200 |
| 140 lb | 1,200 | 1,297 |
| 160 lb | 1,200 | 1,422 |
| 180 lb | 1,296 | 1,546 |
| 200 lb | 1,421 | 1,671 |
| 220 lb | 1,546 | 1,796 |
| 240 lb | 1,671 | 1,921 |
| 260 lb | 1,795 | 2,045 |
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 73-year-old woman eat?
About 1,350 to 1,744 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 73-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.