Optimal Heart Rate Formula:
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Definition: This calculator determines your optimal exercise heart rate based on your maximum and resting heart rates, and desired intensity level.
Purpose: It helps athletes and fitness enthusiasts train in specific heart rate zones for different fitness goals (fat burning, endurance, etc.).
The calculator uses the Karvonen formula:
Where:
Explanation: The formula accounts for your personal heart rate range (max - resting) and applies the desired intensity percentage.
Details: Training in specific heart rate zones helps achieve different fitness goals:
Tips:
Q1: How accurate is the 220-age formula for max HR?
A: It's an estimate - actual max HR can vary by ±10-20 bpm. A stress test provides the most accurate measurement.
Q2: When should I measure resting heart rate?
A: Measure first thing in the morning after waking up, before getting out of bed.
Q3: What's a good resting heart rate?
Q4: How does this differ from simple % of max HR?
A: The Karvonen formula is more personalized as it accounts for your resting HR, making it more accurate.
Q5: Can I use this for HIIT training?
A: Yes - use 80-90% intensity for work intervals and 50-60% for recovery intervals.