Calculate My Heart Rate
Calculate 5 personalized heart rate training zones using the Karvonen formula.
Free - Free to use online — no signup required.
About Calculate My Heart Rate
Free web calculator that computes your five personalized heart rate training zones using the Karvonen (heart rate reserve) formula. Enter age and resting heart rate for a more accurate zoneset than the simple 220−age method. The tool outputs Zone 1–5 ranges and offers practical guidance for common goals — fat loss (Zone 2), endurance/event prep (Zones 2–3), and performance (Zone 4) — plus recommended session frequency and training splits.
Key Features
- Calculates five personalized heart rate zones using the Karvonen (heart rate reserve) formula
- Uses age and resting heart rate for greater accuracy than 220−age
- Provides clear zone descriptions and goals (fat loss, endurance, performance)
- Actionable guidance and recommended training splits/frequency for each goal
Who is this for?
Athletes, recreational exercisers and fitness enthusiasts who want accurate heart rate training zones for structured workouts.
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