Target Heart Rate Formula:
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The Target Fat Burning Zone is the heart rate range where your body burns the highest percentage of calories from fat during exercise. It's typically calculated as 65% of your maximum heart rate.
The calculator uses the following formula:
Where:
Explanation: The formula estimates your maximum heart rate based on age, then calculates 65% of that value to find your optimal fat burning zone.
Details: Exercising in this zone helps optimize fat metabolism while maintaining a sustainable workout intensity. It's particularly useful for weight management and endurance training.
Tips: Simply enter your age in years (must be between 1-120). The calculator will estimate your target fat burning heart rate in beats per minute (bpm).
Q1: Is 220-age accurate for everyone?
A: While commonly used, this is an estimate. Actual maximum heart rate can vary by ±10-20 bpm based on fitness level and genetics.
Q2: Should I stay exactly at this heart rate?
A: The fat burning zone is a target range. Staying within ±5 bpm is effective, and variation during exercise is normal.
Q3: How long should I exercise in this zone?
A: For optimal fat burning, aim for 30-60 minutes of continuous exercise in this zone, 3-5 times per week.
Q4: Will I burn more total fat at higher intensities?
A: While higher intensities burn more calories overall, a greater percentage comes from fat at moderate intensities (this zone).
Q5: Can I use this for interval training?
A: This zone is best for steady-state cardio. Interval training typically alternates between higher and lower intensities.