Reaching your goal weight is a great achievement. The next step is learning your maintenance calories – the amount you can eat daily without gaining or losing. To find this number, start with your BMR from our BMR calculator and then account for your activity level.
What Exactly Are These Calories?
Simply put, this number equals your TDEE (Total Daily Energy Expenditure). It includes everything:
- Your resting energy (BMR)
- Daily movement (walking, typing, fidgeting)
- Digestion of food
- Exercise
When you eat this amount consistently, your weight stays stable over time. Small daily ups and downs are normal, but the long‑term trend is flat.
Why This Number Is Your Anchor
Whether your goal is weight loss, muscle gain, or staying put, this figure serves as your reference:
- To lose weight – eat below it (create a deficit)
- To gain muscle – eat above it (create a surplus)
- To stay the same – eat right at it
Without an accurate baseline, you are guessing. Many people either undereat (feeling tired, losing muscle) or overeat (gaining unwanted fat). Our TDEE calculator gives a reliable starting point.
How to Calculate Yours – Step by Step
Step 1: Get your BMR
Use our BMR calculator to find your resting calorie burn.
Step 2: Choose your activity multiplier
Multiply your BMR by the factor below that best matches your typical week.
| Activity Level | Description | Multiplier |
|---|---|---|
| Sedentary | Desk job, little or no exercise | BMR × 1.2 |
| Lightly active | Light exercise 1‑3 days/week | BMR × 1.375 |
| Moderately active | Moderate exercise 3‑5 days/week | BMR × 1.55 |
| Very active | Hard exercise 6‑7 days/week | BMR × 1.725 |
| Extremely active | Physical job + hard exercise daily | BMR × 1.9 |
Step 3: Do the multiplication
Your maintenance intake = BMR × activity multiplier.
A Real‑World Example
Consider a 40‑year‑old male, 85 kg, 180 cm. He has a desk job but exercises three times per week.
- BMR (Mifflin‑St Jeor): (10×85)+(6.25×180)–(5×40)+5 = 850+1,125–200+5 = 1,780 calories/day
- Activity level: Lightly active (1.375) – a desk job plus three gym sessions does not reach “moderate”
- Result: 1,780 × 1.375 = 2,447 calories/day
If he eats around 2,450 calories daily, his weight should remain stable. For weight loss, he would eat 2,150‑2,250 (a 200‑300 deficit). For muscle gain, he would eat 2,650‑2,850 (a 200‑400 surplus). Learn more about gaining muscle in our guide on how many calories to build muscle.
Frequent Errors to Avoid
❌ Overestimating your activity – Many people choose “moderately active” when they are sedentary. Be honest. A desk job plus three 30‑minute workouts is still “lightly active” (1.375). Overestimating can add 200‑300 unwanted calories.
❌ Never recalculating – When you lose or gain weight, your BMR changes. Therefore, you should recalculate every 5‑10 kg (10‑20 lb). For a deeper understanding, read our post on the BMR formula .
❌ Ignoring weekend patterns – If you exercise less on weekends but eat the same, your average activity drops. Consequently, you may need to adjust your multiplier downward or eat slightly less on rest days.
❌ Not adjusting for real‑world results – Formulas are estimates. For best results, track your weight for 2‑3 weeks. If you are gaining, reduce intake by 100‑200 calories. If you are losing, add 100‑200.
How to Fine‑Tune Your Number
Formulas give you a starting point. However, real‑life data gives you the truth.
Follow this process:
- Eat at your calculated maintenance for two weeks.
- Weigh yourself every morning (after bathroom, before food or drink).
- Calculate your weekly average weight.
- Compare week two’s average to week one’s average.
- Stable (±0.2 kg) → your number is accurate.
- Gaining (+0.3 kg or more) → reduce calories by 100.
- Losing (-0.3 kg or more) → increase calories by 100.
- Repeat the two‑week cycle until weight is stable.
This method corrects for individual differences in metabolism, activity, and even food‑logging errors. For more on metabolism, see our guide on how to increase metabolism naturally .
Transitioning After Weight Loss
After you finish losing weight, your metabolism may be slightly suppressed – a phenomenon called adaptive thermogenesis. As a result, your actual maintenance needs might be 5‑10% lower than the formula predicts.
Solution – reverse dieting: Slowly add calories back over several weeks (50‑100 per week) while monitoring your weight. This allows your metabolism to adapt upward without rapid fat gain.
For a complete weight‑loss strategy, read our calories to eat to lose weight guide, which explains how to transition to maintenance.
After Muscle Gain
If you have finished a muscle‑building phase (bulk) and want to keep your new muscle without adding fat, you need to eat at your new maintenance level. Because muscle burns more calories than fat, your BMR will be higher.
Important: Do not drop directly back to your old maintenance from before the bulk. Instead, recalculate using your new weight and body composition. Our guide on how much protein per day to build muscle will help you preserve muscle during the transition.
Frequently Asked Questions
Are maintenance calories the same as TDEE?
Yes, exactly the same. They are two names for one concept.
How often should I recalculate?
Every 4‑6 weeks, or after any weight change of more than 5 kg (10 lb). Also recalculate if your activity level changes significantly (new job, new workout routine).
Can I use a fitness tracker to find this number?
Fitness trackers are often off by 20‑40%. Use them as a trend tool, not an absolute. Start with the formula method above, then adjust based on real results.
Do these calories change with age?
Yes – BMR decreases with age due to muscle loss. However, strength training can offset this. Learn how to increase metabolism naturally to keep your number higher as you age.
What if I eat above some days and below on others?
Your weight will average out over the week. It is fine to have higher and lower days as long as your weekly average equals maintenance. This flexible approach works well for many people.
Does intermittent fasting affect this number?
No – weight maintenance depends on total calories over time, not meal timing. Read our intermittent fasting beginner’s guide to learn how to combine fasting with accurate calorie targets.