Sedentary
1,967kcal
175 lb, 5 ft 9 in
Lightly active
2,254kcal
Moderately active
2,541kcal
Very active
2,828kcal
Show the math
BMR = 10 × 79.4 kg + 6.25 × 175.3 cm − 5 × 51 + 5 = 1,639
Calories per day by weight and activity
A 51-year-old man, 5 ft 9 in tall.
| Weight | Sedentary | Light | Moderate | Very active |
|---|---|---|---|---|
| 120 lb | 1,668 | 1,911 | 2,154 | 2,397 |
| 140 lb | 1,776 | 2,036 | 2,295 | 2,554 |
| 160 lb | 1,885 | 2,160 | 2,435 | 2,710 |
| 180 lb | 1,994 | 2,285 | 2,576 | 2,867 |
| 200 lb | 2,103 | 2,410 | 2,716 | 3,023 |
| 220 lb | 2,212 | 2,535 | 2,857 | 3,180 |
| 240 lb | 2,321 | 2,659 | 2,998 | 3,336 |
| 260 lb | 2,430 | 2,784 | 3,138 | 3,493 |
Calories to lose weight at 51
| Weight | Lose 1 lb/week | Lose 0.5 lb/week |
|---|---|---|
| 120 lb | 1,500 | 1,661 |
| 140 lb | 1,536 | 1,786 |
| 160 lb | 1,660 | 1,910 |
| 180 lb | 1,785 | 2,035 |
| 200 lb | 1,910 | 2,160 |
| 220 lb | 2,035 | 2,285 |
| 240 lb | 2,159 | 2,409 |
| 260 lb | 2,284 | 2,534 |
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.
Want a clinician to look at these numbers?We know licensed clinicians in every state. If you ask, one can reach out to you. Get matched
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 man eat?
About 1,967 to 2,541 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 51-year-old man eat to lose weight?
Roughly 500 fewer than maintenance for about 1 lb a week, for example 1,754 a day at 175 lb if lightly active.