BMR
2,469kcal
at rest
Sedentary
2,963kcal
×1.2
Lightly active
3,395kcal
×1.375
Moderately active
3,828kcal
×1.55
Show the math
BMR = 10 × 181.4 kg + 6.25 × 162.6 cm − 5 × 40 − 161 = 2,469 kcal
TDEE = 2,469 × 1.375 = 3,395 kcal/day
TDEE by age and activity
Daily calories burned for a 400 lb woman, 5 ft 4 in tall, by age and activity level.
| Age | Sedentary | Lightly active | Moderately active | Very active | Extra active |
|---|---|---|---|---|---|
| Age 20 | 3,083 | 3,533 | 3,983 | 4,432 | 4,882 |
| Age 30 | 3,023 | 3,464 | 3,905 | 4,346 | 4,787 |
| Age 40 | 2,963 | 3,395 | 3,828 | 4,260 | 4,692 |
| Age 50 | 2,903 | 3,327 | 3,750 | 4,173 | 4,597 |
| Age 60 | 2,843 | 3,258 | 3,673 | 4,087 | 4,502 |
| Age 70 | 2,783 | 3,189 | 3,595 | 4,001 | 4,407 |
TDEE by height
Same weight at age 40, different heights.
| Height | Sedentary | Light | Moderate |
|---|---|---|---|
| 5 ft 0 in | 2,887 | 3,308 | 3,729 |
| 5 ft 2 in | 2,925 | 3,352 | 3,778 |
| 5 ft 4 in | 2,963 | 3,395 | 3,828 |
| 5 ft 6 in | 3,001 | 3,439 | 3,877 |
| 5 ft 8 in | 3,039 | 3,483 | 3,926 |
| 5 ft 10 in | 3,078 | 3,526 | 3,975 |
Calories to lose weight
| Goal | Calories/day | Change |
|---|---|---|
| Maintain | 3,395 | 0 |
| Lose 0.5 lb/week | 3,145 | -250 |
| Lose 1 lb/week | 2,895 | -500 |
| Lose 1.5 lb/week | 2,645 | -750 |
| Lose 2 lb/week | 2,395 | -1,000 |
Lightly active, age 40, 5 ft 4 in. * Raised to 1,200 kcal, a common minimum without medical supervision.
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 weights
Common questions
How many calories does a 400 lb woman burn a day?
About 2,469 calories at rest (BMR) and about 3,395 on a lightly active day, at 5 ft 4 in and age 40. Height, age and activity change it.
How many calories should a 400 lb woman eat to lose weight?
About 2,895 a day for roughly 1 lb a week, if lightly active (a 500-calorie deficit).
Is this exact?
No. Formulas estimate averages within roughly 10% for most people. Track your weight for 2 to 3 weeks and adjust.