TDEE Calculator

TDEE — Total Daily Energy Expenditure — is the actual number that should drive any calorie-based nutrition plan, not BMR alone. It represents everything your body burns in a full day, not just what it burns lying motionless, and it’s the figure that determines whether a given calorie intake will maintain, reduce, or increase your weight.

How the TDEE Calculator Works

Enter your sex, age, height, and weight, and the calculator first computes your BMR (basal metabolic rate) using the Mifflin-St Jeor formula, then multiplies that BMR by an activity multiplier corresponding to six different activity levels — from sedentary through extra active — to produce your TDEE at each level. The full table lets you see how your total energy expenditure shifts across every activity category, not just the one that currently applies to you.

Why TDEE, Not BMR, Is the Number That Actually Matters for Calorie Planning

BMR represents only the energy your body burns at complete rest — breathing, circulating blood, maintaining organ function — with zero physical activity factored in at all. Almost nobody actually spends a full day at that level of total stillness, which is exactly why using BMR alone to set a calorie target for weight management would produce a wildly inaccurate, far-too-low target for anyone with any meaningful daily activity. TDEE corrects for this by adding in the energy cost of movement, exercise, and even the simple act of digesting food, producing the number that actually reflects your real daily energy needs — which is exactly why TDEE, not BMR, should be the baseline for any calorie intake decision aimed at maintaining, losing, or gaining weight.

The Six Activity Multipliers, and How to Choose the Right One

• Sedentary (×1.2): little or no structured exercise, a desk-based lifestyle with minimal daily movement.
• Light (×1.375): light exercise or sports 1-3 days a week.
• Moderate (×1.465): moderate exercise or sports 4-5 days a week.
• Active (×1.55): daily exercise, or intense exercise 3-4 days a week.
• Very active (×1.725): intense exercise 6-7 days a week.
• Extra active (×1.9): very intense daily exercise, or a physically demanding job combined with additional training.

Most people tend to overestimate their own activity level when self-selecting from a list like this, which is worth being honest about — someone who exercises three times a week but otherwise has a fully sedentary desk job and lifestyle likely falls closer to “light” than “moderate,” since the multiplier is meant to reflect overall daily activity, not just scheduled workout sessions layered onto an otherwise inactive day.

Using TDEE to Set a Weight Goal

Once you know your TDEE at your actual activity level, adjusting from that baseline is how a calorie target for weight change gets set: eating below TDEE creates the calorie deficit needed for weight loss, while eating above it creates the surplus needed for weight gain, with the size of that gap determining how quickly the change happens. A commonly used adjustment is roughly 500 calories below TDEE for a moderate weekly weight loss pace, though the appropriate deficit size varies by individual circumstances and goals.

Why TDEE Estimates Are Starting Points, Not Guarantees

Like any formula-based estimate, this calculator’s TDEE figure is a population-average approximation, not a direct measurement of your specific metabolism — individual metabolic rate varies for reasons beyond what age, height, weight, and sex alone can capture. Treating this calculator’s output as a reasonable starting point, then adjusting based on your own real-world results over several weeks of consistent tracking, is a more reliable approach than assuming the formula’s output is exactly correct for your specific body from day one.

From TDEE to a Specific Calorie Target

This calculator shows TDEE at every activity level as a reference table, but translating that into an actual calorie target for a specific weight goal — accounting for a chosen deficit or surplus size — requires an additional step this calculator doesn’t perform directly. The Calorie Calculator takes that next step, applying a specific goal (maintain, lose at a chosen rate, or gain) directly to produce a single target calorie number rather than the full reference table this TDEE calculator provides.

Dividing TDEE Into Specific Macronutrient Targets

Once a specific calorie target is established from your TDEE, that total needs to be divided into carbohydrate, protein, and fat targets to complete a full nutrition plan. The Macro Calculator handles that division using common macro splits, while the Protein Calculator offers a more precise, body-weight-based method specifically for protein.

Accounting for Calories Burned Through Exercise

The activity multiplier in this TDEE calculation already accounts for a general activity level, but if you want to estimate the calorie cost of one specific workout separately — useful for understanding how a single session fits into your overall daily energy balance — the Calories Burned Calculator handles that individual-activity estimate directly, distinct from this calculator’s broader daily activity category approach.

Frequently Asked Questions

What is the difference between BMR and TDEE?

BMR is the energy your body burns at complete rest, with no physical activity included. TDEE adds activity level on top of BMR, representing your actual total daily energy expenditure. TDEE, not BMR alone, is the appropriate baseline for setting a calorie intake target.

How do I choose the right activity level?

Consider your entire day’s activity, not just scheduled exercise sessions — someone with a sedentary job who exercises a few times a week generally falls closer to “light” than “moderate,” since the multiplier reflects overall daily movement, not workouts layered onto an otherwise inactive lifestyle.

How much should I eat below my TDEE to lose weight?

A commonly used approach is roughly 500 calories below TDEE for a moderate weekly loss pace, though the appropriate deficit size varies by individual circumstances, goals, and how sustainable a given deficit feels over time.

Is my calculated TDEE exactly accurate for my body?

It’s a population-average estimate, not a precise individual measurement. Actual metabolic rate varies for reasons beyond what a formula based on age, height, weight, and sex can fully capture, so treat it as a starting point to adjust based on your own real-world results over time.

Should I use this calculator or the Calorie Calculator?

This calculator shows your TDEE across all six activity levels as a reference table. The Calorie Calculator takes the next step, applying a specific weight goal (maintain, lose, or gain) directly to produce one target calorie number rather than the full reference table.