Heart Rate Zones for a 50-Year-Old
For a 50-year-old, the Tanaka formula estimates a maximum heart rate of about 173 bpm. That puts your Zone 2 (easy aerobic) at roughly 104–121 bpm and your Zone 4 (threshold) at 138–156 bpm. Below you will find the full 5-zone table, a formula comparison, and a calculator that personalises the numbers if you enter your resting HR.
| Zone |
Name |
% HRmax |
BPM (age 50) |
| 1 | Recovery | 50–60% | 87–104 |
| 2 | Endurance | 60–70% | 104–121 |
| 3 | Aerobic | 70–80% | 121–138 |
| 4 | Threshold | 80–90% | 138–156 |
| 5 | Maximum | 90–100% | 156–173 |
Formula Comparison for a 50-Year-Old
No single equation is authoritative. The spread below shows why picking a formula matters — the difference between Fox and Nes at your age moves your Zone 2 ceiling by several beats.
| Formula |
HRmax at age 50 |
| Fox (220 − age) | 170 |
| Tanaka (208 − 0.7 × age) | 173 |
| Gellish (207 − 0.7 × age) | 172 |
| Nes / HUNT (211 − 0.64 × age) | 179 |
| Gulati (206 − 0.88 × age, women) | 162 |
Talk Test at Age 50
- Zone 2 (104–121 bpm): full conversation, easy nasal breathing.
- Zone 4 (138–156 bpm): only short phrases.
- Zone 5 (156–173 bpm): speech nearly impossible.
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