💓 Heart Rate Zone Calculator

Calculate your maximum heart rate from your age and determine 5 heart rate zones. Also supports the Karvonen method (which considers resting heart rate). Train at the exercise intensity that matches your fitness goals.

Please enter the value you measured immediately after waking up.

Calculation Results

190
Maximum Heart Rate (bpm) = 220 -30

Heart Rate Zone

Recommended Exercises by Zone

Zone 1
  • Walking
  • Light Stretching
  • Yoga
Zone 2
  • Brisk Walking
  • Light Jogging
  • Cycling
Zone 3
  • Running
  • Swimming
  • Aerobics
Zone 4
  • Interval Running
  • Hill Sprints
  • HIIT
Zone 5
  • Max Effort Sprints
  • Tabata
  • Sport Training

Usage and Application Examples

  • Enter your age and click "Calculate" to display the 5 zones.
  • Turn on the Karvonen method for more accurate calculations that consider your resting heart rate.
  • For fat burning, maintain Zone 2 (60-70%) during training
  • Zone 3 (70-80%) is effective for improving endurance
  • Print your results using the print button to bring to the gym

What is Heart Rate Zone Calculator?

Heart rate zones are intensity ranges that correspond to different training effects. By calculating your five zones—from Zone 1 (very light recovery) through Zone 5 (maximum effort)—you can align your workouts with specific fitness goals. This tool takes just your age to compute accurate zone boundaries in beats per minute, helping runners, cyclists, and fitness enthusiasts train smarter and recover faster.

How to Use

Enter your age into the calculator. The tool uses the age-predicted maximum heart rate formula (220 minus your age) to determine your personal training zones. Each zone displays as both a percentage of max heart rate and absolute bpm range, making it easy to monitor intensity during exercise. You can reference these numbers on any heart rate monitor—watch, chest strap, or smartphone app—to stay within your target zone during workouts.

Use Cases

• Endurance Training: Zone 2 (65-75% max HR) builds aerobic base with long, conversational-pace runs or rides
• Fat-Burning Workouts: Zone 2-3 (75-85%) maintains sustainable intensity for weight loss goals
• VO2 Max Development: Zone 4 (85-95%) improves cardiovascular capacity during interval training
• Recovery Sessions: Zone 1 (50-60%) active recovery walks or easy spinning to promote blood flow without stress
• Race Simulation: Zone 5 (95-100%) all-out sprints prepare body for peak competitive efforts

Tips & Insights

Heart rate zone calculations use age-predicted formulas that work as population averages. Your actual max heart rate may vary 10-20 bpm from the formula—if you know your true maximum from a maximal effort test, adjust zones accordingly. Training by zones prevents common mistakes like running all easy efforts too fast or recovery days too hard. Periodizing workouts across different zones throughout the week builds comprehensive fitness while reducing injury risk.

Frequently Asked Questions

How is maximum heart rate calculated?

The common formula is "220 - age". For example, if you're 30 years old, your maximum heart rate would be 190 bpm. However, since there are individual differences, please use this as a rough estimate.

What is the Karvonen method?

The Karvonen method is a more accurate heart rate zone calculation method that takes resting heart rate into account. Target HR = (Max HR - Resting HR) × Exercise Intensity% + Resting HR.

What is the fat-burning zone?

It's the zone at 60-70% of maximum heart rate where your body most efficiently burns fat as fuel. This includes walking and light jogging.

How do I measure resting heart rate?

The most accurate way is to count the pulse on your wrist for 1 minute right after waking up in the morning while lying down. The typical resting heart rate for adults is 60-100 bpm.

Can I print the heart rate zone results?

Yes. You can print the results using your browser's print function (Ctrl+P). The output is optimized for printing.

Why does my actual maximum heart rate differ from the age-predicted formula?

Individual maximum heart rate varies due to genetics, fitness level, and cardiovascular health. The age-based formula is an average estimate; if you've measured your true max HR through intense exercise, use that value instead for more accurate zone calculations.

Should women use different heart rate zones than men?

The heart rate zone percentages are the same for all genders, but some women may have slightly lower overall maximum heart rates. Use the calculator with your actual age and resting heart rate—the formulas automatically account for individual variation.

How often should I recalculate my heart rate zones?

Recalculate annually or whenever your fitness level significantly changes. If you improve your cardiovascular fitness, your resting heart rate typically decreases, which shifts your zone boundaries upward, allowing you to work at higher intensities.

Do I need a heart rate monitor to use these zones effectively?

A heart rate monitor makes it much easier to train in specific zones, but you can also use the manual pulse check method. Chest straps and wrist watches are affordable and provide accurate real-time feedback during exercise.

Can I use the same zones for all types of exercise like running, cycling, or swimming?

Yes, heart rate zones are based on your physiology and apply to any aerobic activity. However, you might reach slightly different heart rates during running versus cycling due to muscle group differences, so focus on the percentage rather than absolute numbers.

What's the difference between training in the aerobic zone versus the anaerobic zone?

The aerobic zone (70-85% max HR) builds endurance and burns a mix of fat and carbs efficiently. The anaerobic zone (85-95% max HR) uses primarily carbs and improves speed and power, but can only be sustained for short periods and requires longer recovery.