Sedentary
2,021kcal
175 lb, 5 ft 9 in
Lightly active
2,316kcal
Moderately active
2,610kcal
Very active
2,905kcal
Show the math
BMR = 10 × 79.4 kg + 6.25 × 175.3 cm − 5 × 42 + 5 = 1,684
Calories per day by weight and activity
A 42-year-old man, 5 ft 9 in tall.
| Weight | Sedentary | Light | Moderate | Very active |
|---|---|---|---|---|
| 120 lb | 1,722 | 1,973 | 2,224 | 2,475 |
| 140 lb | 1,830 | 2,097 | 2,364 | 2,631 |
| 160 lb | 1,939 | 2,222 | 2,505 | 2,788 |
| 180 lb | 2,048 | 2,347 | 2,646 | 2,944 |
| 200 lb | 2,157 | 2,472 | 2,786 | 3,101 |
| 220 lb | 2,266 | 2,596 | 2,927 | 3,257 |
| 240 lb | 2,375 | 2,721 | 3,067 | 3,414 |
| 260 lb | 2,484 | 2,846 | 3,208 | 3,570 |
Calories to lose weight at 42
| Weight | Lose 1 lb/week | Lose 0.5 lb/week |
|---|---|---|
| 120 lb | 1,500 | 1,723 |
| 140 lb | 1,597 | 1,847 |
| 160 lb | 1,722 | 1,972 |
| 180 lb | 1,847 | 2,097 |
| 200 lb | 1,972 | 2,222 |
| 220 lb | 2,096 | 2,346 |
| 240 lb | 2,221 | 2,471 |
| 260 lb | 2,346 | 2,596 |
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.
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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 42-year-old man eat?
About 2,021 to 2,610 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 42-year-old man eat to lose weight?
Roughly 500 fewer than maintenance for about 1 lb a week, for example 1,816 a day at 175 lb if lightly active.