Target Heart Rate Calculator

years
bpm

Your Target Heart Rate Range

125 - 138 bpm

Max Heart Rate: 190 bpm

IntensityTarget Heart Rate Range
Moderate (50-60%)125 - 138 bpm
Fat Burning (60-70%)138 - 151 bpm
Aerobic (70-80%)151 - 164 bpm
Anaerobic (80-90%)164 - 177 bpm
VO2 Max (90-100%)177 - 190 bpm
Photo of calculator author Wes NolteCreated by Wes Nolte.Last updated Aug 30, 2024.

How to Use The Target Heart Rate Calculator

Step 1: Enter Your Inputs

Provide your age, resting heart rate, and intensity level. The calculator will then estimate your maximum heart rate (MHR) and target heart rate (THR).

Step 2: View Your Results

The calculator will display your target heart rate based on the inputs and will show a table with different intensity levels for further insights.

Why Is It Important to Know Your Target Heart Rate?

Your Target Heart Rate (THR) is crucial for optimizing your workout's effectiveness and ensuring safety. Exercising within your target heart rate zone helps you achieve specific fitness goals while preventing overtraining and reducing the risk of injury.

  • Optimized Workouts: Training within your THR zone ensures that your workout is effective for your fitness goals, whether it's improving cardiovascular health, burning fat, or enhancing endurance.
  • Preventing Overtraining: Knowing your THR helps avoid pushing your body too hard, which can lead to injuries, fatigue, and other health issues.
  • Personalized Training: Your THR allows for tailored exercise plans that match your fitness level and goals, leading to more efficient and safer workouts.

How Does the Calculator Work?

The calculator estimates your Maximum Heart Rate (MHR) using the formula: 220 - Age. Based on this MHR, it calculates your Target Heart Rate (THR) range by considering your resting heart rate and the selected intensity level.

The calculator uses the following formula to determine your THR range:

THR=RHR+(MHR-RHR)×Intensity100

Understanding Intensity Levels

Different exercise intensities correspond to different heart rate zones, each serving various fitness goals:

  • Moderate (50-60%): Ideal for beginners or those aiming for general health improvements.
  • Fat Burning (60-70%): Optimizes fat burning during workouts.
  • Aerobic (70-80%): Enhances cardiovascular endurance and stamina.
  • Anaerobic (80-90%): Improves speed and power.
  • VO2 Max (90-100%): Used for peak performance training.

What Is a Dangerous Heart Rate?

A dangerous heart rate is one that exceeds the safe limits for your age and fitness level, particularly if sustained for an extended period. Here’s why it’s considered dangerous:

  • Risk of Cardiac Events: When your heart rate is too high, especially above 90% of your MHR, your heart works harder than it can handle, which increases the risk of cardiac events like arrhythmias, heart attacks, or even sudden cardiac arrest.
  • Increased Blood Pressure: A high heart rate can lead to increased blood pressure, which puts additional strain on your blood vessels and can cause long-term damage to your cardiovascular system.
  • Oxygen Deprivation: As your heart beats faster, it may not pump blood as efficiently, leading to reduced oxygen delivery to your muscles and vital organs. This can cause dizziness, shortness of breath, and in extreme cases, loss of consciousness.
  • Overtraining and Fatigue: Consistently working out at a dangerously high heart rate can lead to overtraining, resulting in chronic fatigue, weakened immune system, and a higher risk of injuries.

If you experience symptoms such as chest pain, shortness of breath, or dizziness during exercise, it’s essential to stop immediately and seek medical advice.

What Is a Healthy Heart Rate?

A healthy heart rate varies depending on factors like age, fitness level, and activity. However, some general guidelines can help you determine if your heart rate is within a healthy range:

  • Resting Heart Rate (RHR): For most adults, a resting heart rate of 60-100 beats per minute (bpm) is considered normal. Athletes or highly fit individuals may have a resting heart rate as low as 40-60 bpm.
  • Exercise Heart Rate: During moderate-intensity exercise, your heart rate should be between 50% to 70% of your MHR. For vigorous exercise, it should be between 70% to 85% of your MHR.
  • Recovery Heart Rate: After exercising, a healthy heart rate should drop by at least 20 beats within the first minute of rest. Faster recovery times are generally indicative of better cardiovascular fitness.

What Is a Typical Heart Rate?

While heart rate can vary widely between individuals, typical ranges have been established based on age and fitness level:

  • Children (6-15 years): 70-100 bpm
  • Adults (18+ years): 60-100 bpm (Resting Heart Rate)
  • Athletes: 40-60 bpm (Resting Heart Rate)

These ranges are averages and can vary depending on individual health and fitness levels. It's important to understand that "normal" heart rate can differ from person to person.

References

The following sources provide additional information and validation for the formulas discussed: