Calories per day by weight and activity
A 38-year-old man, 5 ft 9 in tall.
| Weight | Sedentary | Light | Moderate | Very active |
|---|---|---|---|---|
| 120 lb | 1,746 | 2,000 | 2,255 | 2,509 |
| 140 lb | 1,854 | 2,125 | 2,395 | 2,666 |
| 160 lb | 1,963 | 2,250 | 2,536 | 2,822 |
| 180 lb | 2,072 | 2,374 | 2,677 | 2,979 |
| 200 lb | 2,181 | 2,499 | 2,817 | 3,135 |
| 220 lb | 2,290 | 2,624 | 2,958 | 3,292 |
| 240 lb | 2,399 | 2,749 | 3,098 | 3,448 |
| 260 lb | 2,508 | 2,873 | 3,239 | 3,605 |
Calories to lose weight at 38
| Weight | Lose 1 lb/week | Lose 0.5 lb/week |
|---|---|---|
| 120 lb | 1,500 | 1,750 |
| 140 lb | 1,625 | 1,875 |
| 160 lb | 1,750 | 2,000 |
| 180 lb | 1,874 | 2,124 |
| 200 lb | 1,999 | 2,249 |
| 220 lb | 2,124 | 2,374 |
| 240 lb | 2,249 | 2,499 |
| 260 lb | 2,373 | 2,623 |
Lightly active. Never below 1,500 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 38-year-old man eat?
About 2,045 to 2,641 a day at 175 lb, depending on activity, to maintain weight. Your weight and height shift it; see the table.
How many calories should a 38-year-old man eat to lose weight?
Roughly 500 fewer than maintenance for about 1 lb a week, for example 1,843 a day at 175 lb if lightly active.