Health category
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Heart Rate Zone Calculator
Find your target heart rate zones for recovery, endurance, cardio, threshold, and high-intensity training. Switch between the standard formula and the Karvonen method for a more personalized estimate.
Standard zones use a percentage of your estimated max heart rate.
Estimated Max Heart Rate
190 BPM
Selected Method
Standard
Zone 1
50% - 60%Recovery / Warmup
Target range
95 - 114 BPM
Best for easy movement, warmups, cooldowns, and recovery days. Ideal for beginners and anyone coming back from harder sessions.
Zone 2
60% - 70%Fat Burn / Endurance
Target range
114 - 133 BPM
Builds aerobic base and endurance. Great for long steady workouts, general fitness, and most easy running or cycling.
Zone 3
70% - 80%Aerobic / Cardio
Target range
133 - 152 BPM
A moderate training zone that improves cardiovascular fitness. Useful for tempo efforts and intermediate athletes building speed endurance.
Zone 4
80% - 90%Anaerobic / Threshold
Target range
152 - 171 BPM
Hard sustained work near your lactate threshold. Best for experienced exercisers doing structured intervals and race-specific training.
Zone 5
90% - 100%VO2 Max / Sprint
Target range
171 - 190 BPM
Very intense short efforts that train top-end speed and power. Usually reserved for advanced athletes, short intervals, and race sharpening.
EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.
Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.
Learn more about our review process on the EveryCalc methodology page.
How this calculator works
What this page estimates
This Heart Rate Zone Calculator is built to give a quick, browser-based estimate for heart rate zone. Find your target heart rate zones for recovery, endurance, cardio, threshold, and high-intensity training. Switch between the standard formula and the Karvonen method for a more personalized estimate. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.
Calculation approach
The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For health tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.
Example workflow
For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.
Practical checks
- Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
- Run a low, base, and high case when the inputs are estimates.
- Check the related calculators below when the next decision depends on a different assumption.
How to interpret the heart rate zone result
Best use
Use the result as an informational wellness estimate that can help organize measurements, targets, or timing before a conversation with a clinician.
Cross-check
Compare the output with your own records, device readings, lab values, medication instructions, or guidance from a qualified health professional.
Watch for
Do not use this page to diagnose, treat, or ignore symptoms. Health calculators are most useful when they make questions clearer, not when they replace care.
This page belongs to the Health calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this heart rate zone estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Use current measurements
Recent weight, height, age, activity, nutrition, sleep, or timing inputs matter more than remembered estimates.
Look for context
A calculator can organize a wellness number, but it cannot read symptoms, medical history, medications, or lab results.
Escalate high-impact questions
Use clinical guidance for pregnancy, dosage, heart, risk, illness, or treatment decisions.
Rerun this page when measurements change, a clinician gives new guidance, or the result is being used for a new goal.
How to Use
- Enter your age to estimate your maximum heart rate.
- Add your resting heart rate if you want to use the Karvonen method for more personalized zones.
- Choose Standard for a quick estimate or Karvonen for heart rate reserve based training zones.
- Review your five training zones and use the BPM ranges to guide workouts, recovery sessions, and interval training.
Frequently Asked Questions
What are heart rate zones?
Heart rate zones are training intensity ranges based on a percentage of your maximum heart rate, or on heart rate reserve with the Karvonen method. They help you match each workout to a specific goal like recovery, endurance, tempo work, or speed.
What is the difference between Standard and Karvonen?
The standard method multiplies your estimated max heart rate by a percentage. The Karvonen method uses heart rate reserve, which subtracts your resting heart rate first, then adds it back after applying the training percentage. That usually gives a more individualized range.
Which heart rate zone burns the most fat?
Zone 2 is commonly called the fat burn or endurance zone because it is sustainable and relies heavily on aerobic metabolism. But the best zone depends on your overall fitness goal, schedule, and training plan.
Should I train in Zone 5 often?
Usually no. Zone 5 is very intense and best used sparingly for short intervals, race sharpening, or advanced conditioning. Most people benefit from spending more time in Zones 1 and 2, with higher zones added strategically.
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