Karvonen Heart Rate Calculator Age And Weight

Karvonen Formula:

\[ THR = (MHR - RHR) \times Intensity + RHR \] \[ MHR = 220 - Age \]

Age:

years

Weight:

Resting Heart Rate (RHR):

bpm

Intensity (%):

Target Heart Rate (THR):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the Karvonen Heart Rate Formula?

The Karvonen formula is a method used to calculate target heart rate (THR) for exercise. It's more personalized than simple percentage-based methods because it takes into account your resting heart rate (RHR), providing a more accurate training zone.

2. How Does the Calculator Work?

The calculator uses the Karvonen formula:

\[ THR = (MHR - RHR) \times Intensity + RHR \] \[ MHR = 220 - Age \]

Where:

\( THR \) — Target Heart Rate (bpm)
\( MHR \) — Maximum Heart Rate (bpm)
\( RHR \) — Resting Heart Rate (bpm)
\( Intensity \) — Exercise intensity as a decimal (e.g., 0.6 for 60%)
\( Age \) — Age in years

Explanation: The formula calculates your heart rate reserve (MHR - RHR) and then applies your desired intensity percentage to determine your target training zone.

3. Importance of Target Heart Rate Calculation

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 athletic performance.

4. Using the Calculator

Tips: Enter your age in years, weight in kg, resting heart rate in bpm, and desired intensity percentage. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why use the Karvonen formula instead of simple percentage methods?
A: The Karvonen formula is more personalized as it accounts for your individual resting heart rate, providing more accurate training zones.

Q2: How do I measure my resting heart rate?
A: Measure your pulse first thing in the morning before getting out of bed. Count beats for 60 seconds for the most accurate reading.

Q3: What are typical intensity percentages for different goals?
A: 50-60% for light activity/warm-up, 60-70% for fat burning, 70-80% for aerobic/cardio, 80-90% for anaerobic/performance training.

Q4: Is the 220-age formula accurate for everyone?
A: While commonly used, it's an estimation. Individual maximum heart rates can vary by ±10-15 bpm from the formula prediction.

Q5: Should weight affect heart rate calculations?
A: While weight doesn't directly factor into the Karvonen formula, it's important for overall fitness assessment and exercise prescription.