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Heart Rate Equation:
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The Heart Rate Calculator estimates your target exercise heart rate based on your age, resting heart rate, and desired exercise intensity. It uses the standard Karvonen formula to determine optimal heart rate zones for different training intensities.
The calculator uses the following equation:
Where:
Explanation: The equation first calculates your maximum heart rate (220 - age), then determines your heart rate reserve by subtracting your resting heart rate. The target zone is a percentage of this reserve added back to your resting heart rate.
Details: Knowing your target heart rate helps you exercise at the right intensity to achieve your fitness goals, whether it's fat burning, cardiovascular improvement, or endurance training.
Tips: For best results, measure your resting heart rate first thing in the morning before getting out of bed. Select an intensity level appropriate for your fitness goals and current condition.
Q1: Why use 220-age for maximum heart rate?
A: This is a widely accepted estimate, though individual maximum heart rates can vary by ±10-20 bpm. For more accuracy, consider a stress test.
Q2: What are typical resting heart rates?
A: Normal is 60-100 bpm. Well-trained athletes may have 40-60 bpm. Consult a doctor if consistently above 100 or below 60 (unless athletic).
Q3: How does weight affect heart rate?
A: While weight isn't directly in the formula, fitness level (which often correlates with weight) affects resting heart rate, which is included.
Q4: What intensity should I choose?
A: Beginners start at 50-60%, moderate exercisers at 60-70%, and advanced at 70-85% of heart rate reserve.
Q5: Are there limitations to this calculation?
A: This provides estimates. Medications, health conditions, and individual variations can affect actual heart rate responses.