TDEE and maintenance
calorie calculator.

Is TDEE maintenance calories?

The calculator labels the output as estimated maintenance because that is how most people use TDEE in a food log. It is still an estimate, not a promise that your weight will stay exactly flat.

What the calculator does

The calculator converts your measurements to kilograms and centimetres, applies the Mifflin-St Jeor resting-energy equation, then multiplies that estimate by the activity factor you selected. Read how to estimate maintenance calories for the formula, evidence, and worked logic.

You will also see this quantity called TEE, total energy expenditure, which is the term nutrition research uses for the same thing; TDEE simply makes the daily part explicit. BMR or resting energy is not the same as TDEE. The BMR and resting energy calculator runs that first step against two published equations at once, which shows how much the resting figure itself can move before any activity multiplier is applied. Resting energy is the first part of the estimate. The activity multiplier adds a rough allowance for normal movement and exercise.

The activity category can move the result sharply

Changing only the activity option can shift the result by hundreds of calories. That does not mean one category is secretly correct. It shows how much the estimate depends on a broad description of your routine.

The one-step activity range is there for this reason. If you are unsure between lightly active and moderately active, compare the nearby range instead of treating one click as truth. A desk job with several workouts may still differ from physical work, high daily steps, or a training block with long sessions.

Recent maintenance-calorie discussions keep returning to the same practical problem: people are unsure whether workouts belong in the activity level, a separate exercise entry, or both. Start conservatively and compare the result with complete observations. Do not choose a category only because its result feels preferable. Do not add the same exercise twice. If the activity multiplier already represents your workouts and usual steps, a watch workout estimate should stay separate from this calculator rather than being added automatically.

How to check whether the estimate fits you

Current calorie-tracking discussions show a clear pattern: the useful question is not "Which calculator is perfect?" It is "Do my complete logs and comparable weigh-ins support this estimate?"

1. Keep the same estimate long enough to get past daily scale noise.
2. Include full food records, especially oils, sauces, drinks with energy, snacks, and restaurant meals.
3. Use comparable weigh-ins or multi-day averages, not a single morning.
4. Review the estimate slowly. Recent app-development work around adaptive TDEE often uses weekly review windows and small adjustment caps for this reason.

A practical first review window is 14 to 28 days if calorie tracking is safe for you and the routine stays fairly consistent. Copy the review note from the calculator, paste it into Mori or your food log, and keep the assumption visible until the review window is long enough. If the result looks strange, audit the log and activity assumption before making a large intake change.

Keep the estimate separate from a goal

Estimated maintenance is not automatically a calorie target for weight loss or gain. If you already have an appropriate intake target, the weekly calorie average calculator can summarize complete logs. After 14 to 28 days, the TDEE from weight change calculator can compare this formula with what your intake and trend weight imply. The steps to calories calculator can describe one walk, but do not add that result when the activity multiplier already represents your usual steps. The calorie deficit calculator can compare an average below maintenance, while the calorie surplus calculator can model an editable amount above it. None of these tools forecasts a guaranteed weight change.

This calculator is for general adult education

The original equation used two sex-specific versions and studied healthy adults aged 19 to 78. A simple formula cannot account for every body, health condition, medicine, or training demand.

Do not use this tool for children, pregnancy, breastfeeding, eating-disorder treatment, chronic disease, or clinical sports nutrition. Ask a qualified clinician or registered dietitian for individual guidance. Stop tracking if it produces distress, guilt, compulsive checking, or restrictive behavior.