Weightlifting Calories Burned Calculator

Calories Burned Formula:

\[ \text{Calories} = \text{Time} \times \text{MET} \times \text{Weight} / 200 \]

Calories Burned:

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1. What is the Weightlifting Calories Burned Formula?

The weightlifting calories burned formula estimates energy expenditure during weight training based on duration, intensity (MET value), and body weight. It provides a practical way to track workout energy expenditure.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Calories} = \text{Time} \times \text{MET} \times \text{Weight} / 200 \]

Where:

\( Time \) — Duration of activity in hours
\( MET \) — Metabolic Equivalent of Task value
\( Weight \) — Body weight in kilograms

Explanation: The formula accounts for exercise duration, intensity (through MET values), and the individual's body weight to estimate calories burned.

3. Importance of MET Values

Details: MET values represent exercise intensity. Typical weightlifting MET values range from 3.5 (light effort) to 6.0 (vigorous effort). The exact MET depends on factors like rest periods and exercise intensity.

4. Using the Calculator

Tips: Enter time in hours (e.g., 0.5 for 30 minutes), select appropriate MET value for your workout intensity, and enter your current weight in kg. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What MET value should I use for weightlifting?
A: General weight training is about 3.5-6.0 METs. Use lower values for circuit training with light weights and higher values for vigorous powerlifting sessions.

Q2: How accurate is this calculation?
A: It provides a reasonable estimate (±20%) for most people, but individual metabolism and workout specifics can affect actual calories burned.

Q3: Should I include rest periods in the time?
A: Yes, include the total time from when you start your workout until you finish, including rest periods between sets.

Q4: Does this account for afterburn effect (EPOC)?
A: No, this calculation only estimates calories burned during the workout. Weight training typically has a significant afterburn effect that can increase total calorie expenditure.

Q5: How does body composition affect the calculation?
A: Muscle burns more calories than fat at rest, but the formula uses total body weight. Very muscular individuals may burn slightly more calories than estimated.