Heart Rate Zones for a 25-Year-Old Athlete
A fit 25-year-old with a low 50 bpm resting heart rate has an estimated max HR of 195 bpm and wide training zone ranges.
How to use this tool
- Enter age and resting heart rate in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your estimated max hr and the full breakdown beneath it.
Young athletes with low resting heart rates have some of the widest training zones — see your zone breakdown at age 25 with a 50 bpm resting HR.
Frequently asked questions
- What is the Karvonen method?
- It calculates training zones as a percentage of heart-rate reserve (max HR − resting HR), then adds resting HR. This personalises zones better than using max HR alone.
- How do I find my resting heart rate?
- Measure your pulse first thing in the morning before getting up, ideally on several days and average the results.