BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 26.
Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 26, the resting metabolic rate (BMR) is approximately 1461 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1753 kcal (sedentary) to 2520 kcal (very active).
| Goal | Daily Calories | Expected Result |
|---|---|---|
| π΅ Aggressive weight loss | 1259 kcal | ~0.75 kg/week |
| π Weight loss | 1509 kcal | ~0.5 kg/week |
| β Maintenance | 2009 kcal | Weight stable |
| πͺ Lean bulk | 2309 kcal | ~0.25 kg/week |
| ποΈ Aggressive bulk | 2509 kcal | ~0.5 kg/week |
| Activity Level | Description | Daily Calories |
|---|---|---|
| Sedentary | Desk job, minimal movement | 1753 kcal |
| Lightly active | 1β3 workouts/week | 2009 kcal |
| Moderately active | 3β5 workouts/week | 2265 kcal |
| Very active | Hard training 6β7 days/week | 2520 kcal |
Metabolic rate declines approximately 1β2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 26, your BMR of 1461 kcal reflects your current muscle mass, height and hormonal status. The single most effective way to maintain or raise your BMR is resistance training β each kilogram of lean muscle burns roughly 13 kcal/day at rest.
| Age | Estimated BMR (woman) | Change vs age 26 |
|---|---|---|
| 18 | 1501 kcal | +40 kcal |
| 21 | 1486 kcal | +25 kcal |
| 26 | 1461 kcal | β |
| 31 | 1436 kcal | -25 kcal |
| 36 | 1411 kcal | -50 kcal |
| Macro | % of Calories | Grams/day | Calories |
|---|---|---|---|
| Protein | 30% | 151 g | 604 kcal |
| Carbohydrates | 40% | 201 g | 804 kcal |
| Fat | 30% | 67 g | 603 kcal |
At age 26, protein intake is especially important. Aim for at least 60β74 g/day to maintain muscle mass, whether you're in a deficit, at maintenance, or in a surplus.
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