As a fitness expert with over a decade of experience in the field, I can provide you with a comprehensive answer to your question. A good heart rate for a cardio workout depends on several factors, including your age, fitness level, and the intensity of the exercise you're doing. To determine the optimal heart rate for your cardio workouts, you can use the following guidelines: 1. Maximum Heart Rate (MHR): This is a general guideline and is calculated by subtracting your age from 220. For example, if you're 30 years old, your MHR would be 190 beats per minute (bpm). 2. Target Heart Rate (THR): This is the range in which you should aim to keep your heart rate during a cardio workout. It's typically between 50% and 85% of your MHR. For moderate intensity, aim for 50% to 70% of your MHR, and for vigorous intensity, aim for 70% to 85% of your MHR. 3. Intensity: The intensity of your workout will also determine your heart rate. For a light workout, your heart rate might be around 50% to 60% of your MHR. For moderate intensity, it could be 60% to 70%, and for high intensity, it could be 70% to 85% or more. 4. Individual Factors: It's important to consider your personal health, fitness level, and how you feel during the workout. If you're new to exercise or have health concerns, it's best to consult with a healthcare professional before starting any exercise program. 5. Monitoring: Using a heart rate monitor can be a helpful tool to ensure you're working in the right zone. These devices can provide real-time feedback on your heart rate, allowing you to adjust your intensity accordingly. Remember, the key to a successful cardio workout is to find a balance between intensity and duration that challenges your body without causing undue stress or injury. read more >>

It is recommended that you exercise within 55 to 85 percent of your maximum heart rate for at least 20 to 30 minutes to get the best results from aerobic exercise. The MHR (roughly calculated as 220 minus your age) is the upper limit of what your cardiovascular system can handle during physical activity.read more >>