1. What is the Calorie Burn Equation?

This equation estimates calories burned during exercise based on age, weight, heart rate, and exercise duration. It's particularly useful for cardiovascular exercises where heart rate is a good indicator of exercise intensity.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Age \) — Age in years
• \( Weight \) — Body weight in kilograms
• \( HR \) — Average heart rate during exercise in beats per minute
• \( Time \) — Exercise duration in minutes
• 4.184 — Conversion factor from calories to kilocalories

Explanation: The equation accounts for how age, weight, and heart rate affect energy expenditure during exercise, with duration being a linear multiplier.

3. Importance of Calorie Burn Calculation

Details: Understanding calorie expenditure helps with weight management, exercise planning, and achieving fitness goals. It provides quantitative feedback on workout intensity.

4. Using the Calculator

Tips: For best results, measure your average heart rate during the exercise session. All values must be positive numbers (age 1-120, weight > 0, HR > 0, time > 0).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: It provides a reasonable estimate for most people during steady-state cardio, but individual metabolism can vary by ±10-20%.

Q2: Does this work for all types of exercise?
A: It's most accurate for cardiovascular exercises where heart rate correlates well with energy expenditure (running, cycling, swimming).

Q3: Should I use resting or maximum heart rate?
A: Neither - use your average heart rate during the exercise session for most accurate results.

Q4: Why does weight have a negative coefficient?
A: The equation accounts for metabolic efficiency - heavier individuals often burn calories slightly more efficiently at the same heart rate.

Q5: Can I use this for weight loss planning?
A: Yes, but remember that dietary changes typically have a larger impact on weight loss than exercise alone.