Maintenance Activity Multiplier
Calculator
Results
- Maintenance calories (kcal/day)
- 2,480
- Diet-induced thermogenesis (kcal/day)
- 248
- Energy above basal rate (kcal/day)
- 880
Nutrition results
| Maintenance calories (kcal/day) | 2,480 |
| Diet-induced thermogenesis (kcal/day) | 248 |
| Energy above basal rate (kcal/day) | 880 |
formula-map diagram
- Maintenance calories (kcal/day)
- 2,480
- Diet-induced thermogenesis (kcal/day)
- 248
- Energy above basal rate (kcal/day)
- 880
Nutrition formula map
Formula
maintenance kcal = BMR × activity level (diet-induced thermogenesis ≈ 10%)= 2480
Note
Simplified nutrition model using standard reference constants (protein and carbohydrate 4 kcal/g, fat 9 kcal/g, alcohol 7 kcal/g, 1 kg of body fat about 7700 kcal, salt to sodium factor 0.393). Real energy needs and body composition changes vary between individuals. This is not medical, dietetic or nutritional advice; consult a qualified health professional before changing your diet.
More in Nutrition and diet
See all →Frequently asked questions
How are maintenance calories calculated using an activity multiplier?+
The calculator first estimates your basal or resting metabolic rate (BMR) from weight, height, age, and sex, then multiplies that number by an activity factor (commonly ranging from about 1.2 for sedentary to 1.9 for very active) to estimate total daily calories burned including movement and exercise.
Why is it easy to overestimate your own activity level?+
Most people categorize themselves as more active than their actual movement patterns justify, especially when a desk job dominates the day despite regular structured exercise — choosing a lower multiplier than feels intuitive is a common and often more accurate correction.
What do the different activity multiplier categories actually represent?+
They typically range from sedentary (little or no exercise, desk job) through lightly active, moderately active, very active, to extra active (hard physical labor or intense daily training) — each step up assumes progressively more structured exercise or non-exercise physical activity throughout the week, not just occasional workouts.
Why might my actual weight trend not match the calculated maintenance calories?+
BMR formulas are population averages with individual variation of 10% or more, and activity multipliers are broad categories rather than precise measurements, so the calculated number is a starting estimate to refine based on 2-3 weeks of real-world weight tracking, not a guaranteed figure.
Should I recalculate the multiplier if my exercise routine changes?+
Yes, since the multiplier represents your current activity pattern, any sustained change — starting or stopping a training program, a new job with different physical demands — should prompt recalculating maintenance calories rather than continuing to use an outdated activity level.