Tdee Calculator Reddit

Welcome to the TDEE calculator Reddit communities trust. Calculate your Total Daily Energy Expenditure (TDEE) to find your maintenance calories, then use that to set goals for weight loss (cutting) or muscle gain (bulking).

Your Maintenance Calories (TDEE)

0 calories/day

Basal Metabolic Rate (BMR)

0

Weight Loss (Cut)

0

Weight Gain (Bulk)

0

Cutting goal is a ~500 calorie deficit; Bulking goal is a ~300 calorie surplus.

Dynamic chart showing macronutrient breakdown for maintenance calories.

Calorie & Macronutrient goals based on your TDEE.

Goal	Calories / Day	Protein (g)	Carbs (g)	Fat (g)
Weight Loss (-500 cal)	0	0	0	0
Maintenance	0	0	0	0
Weight Gain (+300 cal)	0	0	0	0

What is TDEE? A Reddit Perspective

Total Daily Energy Expenditure (TDEE) is the total number of calories you burn in a 24-hour period. It’s the most crucial number for managing your weight. If you eat more calories than your TDEE, you gain weight. Eat less, and you lose weight. On forums like Reddit, you’ll see this concept is the foundation of every successful fitness journey. This tdee calculator reddit users recommend provides a solid starting point for your calorie tracking.

Anyone looking to change their body composition—lose fat, gain muscle, or just maintain their current weight—should use a TDEE calculator. A common misconception is that you only need to worry about calories from exercise. In reality, your TDEE includes your Basal Metabolic Rate (BMR)—the energy used for basic functions at rest—plus all your daily activities, from walking to the fridge to intense workouts. This tdee calculator reddit is designed to give you a complete picture.

TDEE Calculator Reddit: Formula and Math Explained

The calculation is a two-step process. First, we calculate your Basal Metabolic Rate (BMR). Then, we multiply it by an activity factor. This is the standard method discussed in most fitness subreddits.

Step 1: Calculate BMR

This calculator uses the Mifflin-St Jeor equation by default, which is widely considered more accurate than the older Harris-Benedict equation. The tdee calculator reddit community often debates formulas, but Mifflin-St Jeor is a solid, evidence-based choice.

• Mifflin-St Jeor (Men): (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) + 5
• Mifflin-St Jeor (Women): (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) – 161

Step 2: Apply Activity Multiplier

Your BMR is then multiplied by an activity factor to find your TDEE. Be honest with your activity level—this is where many people overestimate and wonder why their results are off.

TDEE = BMR × Activity Multiplier

Variables used in the TDEE calculation.

Variable	Meaning	Unit	Typical Range
Weight	Your body mass	kg or lbs	40 – 150 kg
Height	Your stature	cm or inches	140 – 210 cm
Age	Your age	Years	15 – 80
Activity Multiplier	Factor representing daily physical activity	None	1.2 – 1.9

Practical Examples: Using the TDEE Calculator

Let’s look at two common scenarios you might find on Reddit’s fitness forums, using our tdee calculator reddit.

Example 1: The Office Worker

• Inputs: Female, 32 years old, 68 kg (150 lbs), 165 cm (5’5″), Moderately Active (gym 3-4 times a week).
• BMR Calculation: (10 × 68) + (6.25 × 165) – (5 × 32) – 161 = 680 + 1031.25 – 160 – 161 = 1390 calories.
• TDEE Calculation: 1390 (BMR) × 1.55 (Activity) = 2155 calories/day.
• Interpretation: To maintain her weight, she should eat around 2155 calories. For a standard weight loss of ~1 lb/week, she could aim for ~1655 calories, as discussed often when people ask for a good calorie deficit for weight loss.

Example 2: The Student Bulking Up

• Inputs: Male, 21 years old, 75 kg (165 lbs), 180 cm (5’11”), Very Active (training 6 times a week plus a part-time job on his feet).
• BMR Calculation: (10 × 75) + (6.25 × 180) – (5 × 21) + 5 = 750 + 1125 – 105 + 5 = 1775 calories.
• TDEE Calculation: 1775 (BMR) × 1.725 (Activity) = 3062 calories/day.
• Interpretation: His maintenance is 3062 calories. To gain muscle (lean bulk), he might add 300-500 calories, aiming for around 3400 calories per day. This approach is a cornerstone of any good bulking guide.

How to Use This TDEE Calculator Reddit Style

1. Enter Your Stats: Accurately input your gender, age, weight, and height. Use the unit switcher for convenience.
2. Choose Your Activity Level: Be brutally honest. If you work a desk job and hit the gym 3 times, you are likely “Moderately Active,” not “Very Active.” This is the most common error discussed on Reddit.
3. Review Your Results: The calculator instantly provides your TDEE (maintenance calories). This is your baseline.
4. Set Your Goal:
   • To Lose Weight (Cut): Subtract 300-500 calories from your TDEE. This creates a sustainable deficit.
   • To Gain Weight (Bulk): Add 300-500 calories to your TDEE. This fuels muscle growth with minimal fat gain.
   • To Maintain: Eat at your TDEE.
5. Check the Tables: The tables below the main result show calorie and macro goals for cutting, maintenance, and bulking, making it easy to plan your meals. Many users of a tdee calculator reddit find this section particularly helpful.

Key Factors That Affect TDEE Results

Your TDEE isn’t static. Here are six factors that influence it. Understanding these is key to making sense of why a tdee calculator reddit is just a starting point.

• Body Composition: Muscle burns more calories at rest than fat. Two people with the same weight can have different TDEEs if one has more muscle mass. Comparing BMR vs TDEE helps clarify this.
• Age: Metabolic rate naturally slows down with age, primarily due to loss of muscle mass. This is why calorie needs often decrease over time.
• Gender: Men typically have more muscle mass and less body fat than women of the same size and weight, resulting in a higher metabolic rate.
• NEAT (Non-Exercise Activity Thermogenesis): This includes all the calories you burn from activities that aren’t formal exercise, like fidgeting, walking to your car, or doing chores. It can vary wildly between individuals.
• Thermic Effect of Food (TEF): Your body uses energy to digest, absorb, and metabolize food. Protein has the highest TEF, meaning it takes more calories to digest compared to carbs and fats.
• Hormonal Health: Conditions like hypothyroidism can significantly slow metabolism, lowering your TDEE. If your results feel drastically wrong despite accurate inputs, consulting a doctor is a good idea.

Frequently Asked Questions (FAQ)

1. Why does this tdee calculator reddit have two formulas?

It includes Mifflin-St Jeor and Harris-Benedict to provide options. The Mifflin-St Jeor equation is newer and generally considered more accurate for a wider range of people. The best approach, often discussed on Reddit, is to use the best TDEE formula as a starting point and adjust based on your real-world weight change over 2-4 weeks.

2. My TDEE seems too high/low. Is the calculator wrong?

No calculator is 100% perfect; they are estimation tools. The most common reason for a discrepancy is selecting the wrong activity level. Start with the “Sedentary” option if you have a desk job, and only increase it if you are consistent with your workouts. Track your weight for a few weeks and if it’s not changing, your true TDEE is whatever calorie intake you’ve been averaging.

3. How often should I recalculate my TDEE?

A good rule of thumb is to recalculate after every 10 lbs (or 5 kg) of weight change, or if your activity level changes significantly (e.g., starting a new, more physical job). Your energy needs will decrease as you lose weight.

4. Should I eat back the calories I burn from exercise?

No. Your activity level multiplier already accounts for your exercise. Eating back calories on top of that is “double-dipping” and will negate your calorie deficit. This is a very common point of confusion that this tdee calculator reddit aims to clarify.

5. What should my macros be?

The table provides a balanced starting point (e.g., 40% carbs, 30% protein, 30% fat). A common recommendation for muscle retention/growth is to consume about 1.6-2.2 grams of protein per kg of body weight (or ~1 gram per lb). Our guide on macros for cutting goes into more detail.

6. I hit a weight loss plateau. What should I do?

Plateaus are normal. It usually means your TDEE has decreased as you’ve lost weight, and your old “deficit” is now your new “maintenance.” Recalculate your TDEE with your new, lower weight and adjust your calorie intake downwards slightly. See our resource on breaking a weight loss plateau.

7. Can I build muscle and lose fat at the same time?

This is called “body recomposition.” It’s most effective for beginners, people returning to training after a break, or those with significant body fat. It typically requires eating around maintenance calories while prioritizing high protein intake and consistent strength training. It’s a slow process.

8. How accurate is any tdee calculator reddit thread discusses?

Any online calculator provides an estimate. The only way to find your true TDEE is by tracking your calorie intake and your weight trend over several weeks. If your weight is stable, your average daily calorie intake is your TDEE. This calculator gives you an excellent, evidence-based starting point for that experiment.