This chart shows the science-backed target heart rate ranges (50–85% of max HR) based on age, commonly used by cardiologists and fitness guidelines to improve cardiovascular health, endurance, and fat loss. ✔ Based on the standard formula: Max HR ≈ 220 − age ✔ Ideal for walking, jogging, cycling, and cardio workouts ✔ Helps avoid under-training or over-exertion ⚠️ Everyone is different—medical conditions, fitness level, and medications can affect heart rate. Always listen to your body. Save this