TDEE Calculator

Total daily energy expenditure • Calorie calculator

TDEE Calculation Formulas:

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\( \text{BMR} = 10 \times \text{weight(kg)} + 6.25 \times \text{height(cm)} - 5 \times \text{age(y)} + s \)

Where s = +5 (men) or -161 (women)

\( \text{TDEE} = \text{BMR} \times \text{Activity Multiplier} \)

\( \text{Goal Calories} = \text{TDEE} + \text{Deficit/Surplus} \)

Activity multipliers: Sedentary (1.2), Light (1.375), Moderate (1.55), Active (1.725), Very Active (1.9)

For a 70kg male, 175cm, 30y, moderately active:

BMR = 10×70 + 6.25×175 - 5×30 + 5 = 1,721 kcal

TDEE = 1,721 × 1.55 = 2,668 kcal

For weight loss: 2,668 - 500 = 2,168 kcal

Personal Information

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Results

2,668 kcal
Total Daily Energy Expenditure (TDEE)
1,721 kcal
Basal Metabolic Rate (BMR)
2,168 kcal
Target Calories for Goal
0.5 kg/week
Expected Weight Change

Energy Breakdown

64%
BMR
1,721 kcal Resting
36%
Activity
947 kcal Exercise

Comprehensive TDEE Guide

What is TDEE?

Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns in a day, including all activities. It consists of four components: Basal Metabolic Rate (BMR), Thermic Effect of Food (TEF), Non-Exercise Activity Thermogenesis (NEAT), and Exercise Activity Thermogenesis (EAT). Understanding your TDEE is crucial for weight management and nutrition planning.

TDEE Calculation Formulas

The standard TDEE calculation uses these formulas:

\( \text{BMR} = 10 \times \text{weight(kg)} + 6.25 \times \text{height(cm)} - 5 \times \text{age(y)} + s \)
\( \text{TDEE} = \text{BMR} \times \text{Activity Multiplier} \)

Where:

  • \( s = +5 \) for men, \( -161 \) for women (Mifflin-St Jeor Equation)
  • \( \text{Activity Multiplier} \) ranges from 1.2 (sedentary) to 1.9 (very active)
  • \( \text{Goal Calories} = \text{TDEE} + \text{Deficit/Surplus} \)

Activity Level Classifications
1
Sedentary (1.2): Little or no exercise, desk job, minimal movement.
2
Light (1.375): Light exercise 1-3 days per week, some walking.
3
Moderate (1.55): Moderate exercise 3-5 days per week, regular activity.
4
Active (1.725): Hard exercise 6-7 days per week, physically demanding job.
5
Very Active (1.9): Very hard exercise, physical job, training 2x/day.
Goal-Specific Adjustments

Adjust TDEE based on your specific goals:

  • Weight Loss: 500-750 kcal deficit = 0.5-1kg/week loss
  • Weight Maintenance: Match TDEE exactly
  • Weight Gain: 300-500 kcal surplus = 0.3-0.5kg/week gain
  • Body Recomposition: Small deficit with high protein and resistance training
TDEE Tracking Tips
  • Accuracy: Use a food scale and measure portions precisely
  • Consistency: Track for at least 2-3 weeks before adjusting
  • Flexibility: Adjust based on progress and lifestyle changes
  • Reassessment: Recalculate TDEE every 4-6 weeks
  • Monitoring: Track weight, measurements, and energy levels

TDEE Basics

BMR Components

BMR: 60-75% of TDEE, Activity: 15-30%, TEF: 10%, NEAT: 5-15%

BMR Formula

\( \text{BMR} = 10 \times \text{weight(kg)} + 6.25 \times \text{height(cm)} - 5 \times \text{age(y)} + s \)

Where s = +5 (men) or -161 (women)

Key Rules:
  • TDEE = BMR × Activity Multiplier
  • 1 lb weight loss = ~3,500 kcal deficit
  • Recalculate when activity level changes

Goal-Specific TDEE

Calorie Adjustments

Deficit: 500-750 kcal for weight loss, Surplus: 300-500 for gain

Adjustment Strategies
  1. Weight loss: TDEE - 500 to -750 kcal
  2. Weight gain: TDEE + 300 to +500 kcal
  3. Maintenance: TDEE ± 100 kcal
  4. Recomposition: TDEE - 200 kcal + high protein
Considerations:
  • Minimum 1,200 calories for women
  • Minimum 1,500 calories for men
  • Adjust for progress plateaus
  • Consider metabolic adaptation

TDEE Learning Quiz

Question 1: Multiple Choice - Understanding BMR Components

What percentage of TDEE does Basal Metabolic Rate (BMR) typically represent?

Solution:

The answer is C) 60-75%. BMR (Basal Metabolic Rate) represents the largest component of TDEE, accounting for 60-75% of total daily energy expenditure. BMR is the energy required to maintain basic physiological functions at rest, including breathing, circulation, and cellular processes. The remaining 25-40% comes from physical activity, digestion, and non-exercise movement.

Pedagogical Explanation:

Understanding the components of TDEE helps explain why some people struggle to lose weight despite exercise. Since BMR accounts for the majority of calorie burn, factors like muscle mass, age, and hormones significantly impact metabolism. Physical activity, while important, contributes a smaller percentage to total calorie burn than many people realize.

Key Definitions:

BMR: Basal Metabolic Rate - calories needed at complete rest

TDEE: Total Daily Energy Expenditure - all calories burned daily

Metabolism: Chemical processes that sustain life

Important Rules:

• BMR is the largest component of TDEE (60-75%)

• Muscle mass increases BMR

• Age decreases BMR over time

Tips & Tricks:

• Resistance training increases muscle mass and BMR

• Adequate sleep supports healthy metabolism

• Stay hydrated to maintain metabolic efficiency

Common Mistakes:

• Overestimating calories burned through exercise

• Not accounting for BMR as the largest energy component

• Assuming all weight loss comes from exercise alone

Question 2: TDEE Calculation Problem

Calculate the TDEE for a 25-year-old female who weighs 60kg, is 165cm tall, and has a moderate activity level. Then calculate her target calories for weight loss.

Solution:

Step 1: Calculate BMR using Mifflin-St Jeor equation

BMR = 10×60 + 6.25×165 - 5×25 - 161

BMR = 600 + 1,031.25 - 125 - 161 = 1,345.25 kcal (rounded to 1,345)

Step 2: Calculate TDEE using activity multiplier

For moderate activity: TDEE = 1,345 × 1.55 = 2,085 kcal

Step 3: Calculate target for weight loss

Weight loss target: 2,085 - 500 = 1,585 kcal

Therefore, her TDEE is 2,085 kcal and her target for weight loss is 1,585 kcal.

Pedagogical Explanation:

This calculation demonstrates the systematic approach to TDEE determination. We start with BMR using the most accurate equation available, then adjust for activity level. The weight loss target is achieved by creating a caloric deficit, typically 500 kcal for safe, sustainable weight loss of about 0.5kg per week.

Key Definitions:

Mifflin-St Jeor: Most accurate BMR equation for adults

Caloric Deficit: Consuming fewer calories than burned

Safe Weight Loss: 0.5-1kg per week

Important Rules:

• Use correct gender-specific BMR equation

• Apply appropriate activity multiplier

• Maximum safe deficit is 750 kcal/day

Tips & Tricks:

• Round BMR to nearest 5 kcal for practicality

• Verify activity level matches actual lifestyle

• Ensure minimum 1,200 calories for women

Common Mistakes:

• Using wrong gender constant in BMR equation

• Applying incorrect activity multiplier

• Creating too large a caloric deficit

Question 3: Word Problem - Athlete TDEE

James is a 28-year-old male athlete who weighs 85kg and is 180cm tall. He trains intensely 6 days per week and has a physically demanding job. Calculate his TDEE and determine his caloric needs for muscle gain. How many calories should he consume daily?

Solution:

Step 1: Calculate BMR for James

BMR = 10×85 + 6.25×180 - 5×28 + 5

BMR = 850 + 1,125 - 140 + 5 = 1,840 kcal

Step 2: Apply activity multiplier for very active

TDEE = 1,840 × 1.9 = 3,496 kcal

Step 3: Calculate target for muscle gain

For muscle gain: 3,496 + 500 = 3,996 kcal

James should consume approximately 4,000 calories daily for muscle gain.

Pedagogical Explanation:

Athletes with high activity levels and physically demanding jobs have significantly higher TDEE values. The "very active" category (1.9 multiplier) is appropriate for someone who exercises 6-7 days per week AND has a physically demanding job. For muscle gain, a moderate surplus (300-500 kcal) is sufficient to support growth while minimizing fat gain.

Key Definitions:

Very Active: Hard exercise 6-7 days/week + physical job

Muscle Gain: Requires caloric surplus and resistance training

Physical Job: Work involving significant physical activity

Important Rules:

• Athletes need higher caloric intake for performance

  • Physical job + exercise = very active classification

    • • Muscle gain requires moderate caloric surplus

    Tips & Tricks:

    • Monitor performance and adjust calories as needed

    • Prioritize protein intake for muscle synthesis

    • Include post-workout nutrition for recovery

    Common Mistakes:

    • Underestimating caloric needs for very active individuals

    • Not accounting for physical job demands

    • Overestimating surplus needed for muscle gain

    Question 4: Application-Based Problem - Weight Loss Plateau

    Sarah calculated her TDEE as 2,200 kcal and has been eating 1,700 kcal daily for 8 weeks. Initially, she lost weight, but now she's experiencing a plateau. What could be causing this, and what should she do? Calculate her new TDEE considering metabolic adaptation.

    Solution:

    Plateau causes: Metabolic adaptation (decreased BMR), reduced NEAT, muscle loss, hormonal changes.

    Metabolic adaptation typically reduces TDEE by 10-15% during weight loss.

    New TDEE estimate: 2,200 × 0.875 = 1,925 kcal (12.5% reduction)

    New weight loss target: 1,925 - 500 = 1,425 kcal

    Alternatively, she could increase activity to boost TDEE or implement a diet break.

    Pedagogical Explanation:

    Metabolic adaptation is a normal physiological response to sustained caloric restriction. As body weight decreases, BMR naturally declines because there's less body mass to maintain. Additionally, the body becomes more efficient at using energy, leading to further reductions in calorie needs. This explains why weight loss often slows over time.

    Key Definitions:

    Metabolic Adaptation: Decrease in energy expenditure during weight loss

    NEAT: Non-Exercise Activity Thermogenesis

    Diet Break: Temporary return to maintenance calories

    Important Rules:

    • Reassess TDEE every 4-6 weeks during weight loss

    • Plateaus are normal and expected

    • Gradual weight loss is more sustainable

    Tips & Tricks:

    • Take progress photos and measurements, not just weight

    • Consider periodic diet breaks to reset metabolism

    • Focus on non-scale victories (energy, strength, clothes fit)

    Common Mistakes:

    • Creating larger deficits when plateauing (counterproductive)

    • Not reassessing TDEE during weight loss journey

    • Giving up during plateaus instead of adjusting strategy

    Question 5: Multiple Choice - Activity Level Assessment

    Which activity level classification is most appropriate for someone who works a sedentary office job but goes to the gym 4 times per week for 1-hour strength training sessions?

    Solution:

    The answer is C) Moderate (1.55). This person engages in structured exercise 4 times per week, which fits the moderate activity level description. While their job is sedentary, the regular exercise sessions significantly increase their daily energy expenditure. The moderate category (1.55) applies to those doing moderate exercise 3-5 days per week, which matches their routine.

    Pedagogical Explanation:

    Activity level classification considers both structured exercise and daily movement. While this person has a sedentary job, their regular gym attendance moves them into the moderate category. The key is consistency - exercising 4 times per week regularly meets the criteria for moderate activity. This highlights the importance of considering the whole picture when assessing activity levels.

    Key Definitions:

    Structured Exercise: Planned, repetitive physical activity

    Non-Exercise Activity: Daily movements (walking, stairs, etc.)

    Activity Consistency: Regular exercise pattern

    Important Rules:

    • Consider both exercise and daily movement

    • Frequency matters more than intensity for classification

    • Consistency determines activity level category

    Tips & Tricks:

    • Include daily movement like walking stairs or parking farther away

    • Be honest about actual activity level, not ideal

    • Reassess if exercise routine changes significantly

    Common Mistakes:

    • Overestimating activity level based on good intentions

    • Not considering the impact of sedentary work

    • Misclassifying inconsistent exercise routines

    TDEE Calculator

    FAQ

    Q: How often should I recalculate my TDEE?

    A: Recalculate your TDEE every 4-6 weeks during active weight loss or gain phases, or whenever your activity level changes significantly. For example, if you initially calculated a TDEE of 2,500 kcal and lost 5kg over 6 weeks, your new TDEE would be approximately 2,500 × (current weight/original weight) = 2,500 × (65/70) = 2,321 kcal. Weight changes and activity modifications both affect energy needs.

    Q: Is it safe to eat below my calculated TDEE for weight loss?

    A: Yes, but with important limitations. Safe caloric deficits are 500-750 kcal below TDEE for most people. However, women should not go below 1,200 calories and men below 1,500 calories per day without medical supervision. For example, if your TDEE is 2,000 kcal, a safe weight loss target is 1,500-1,700 kcal daily. Going too low can lead to muscle loss, hormonal disruptions, and metabolic damage.

    About

    Nutrition Team
    This calculator was created
    This calculator was created by our Fitness & Health Calculators Team , may make errors. Consider checking important information. Updated: April 2026.