Maximum Heart Rate at Age 20
At age 20, the classic 220 minus age formula gives a maximum heart rate of 200 bpm.
How to use this tool
- Enter age in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your 220 − age and the full breakdown beneath it.
At age 20, the commonly used max heart rate formula (220 − age) gives 200 bpm, a benchmark for young adult cardio training.
Frequently asked questions
- Which formula is most accurate?
- A 2002 meta-analysis (Tanaka et al.) found the 208−0.7×age formula more accurate than 220−age, particularly for older adults. Gellish (2007) uses a similar slope. For most practical purposes the differences are small.
- Why does it matter which formula I use?
- The difference is usually 1–5 bpm and affects your training zone calculations. Using Tanaka or Gellish instead of 220−age tends to give slightly lower MHR for younger people and slightly higher for older.
- How can I measure my true max heart rate?
- A supervised maximal exercise test (e.g., graded treadmill protocol) is the only reliable way. Consult a sports medicine professional before performing an all-out maximal effort.