Heart Rate Zones for a 40-Year-Old
For a 40-year-old, the Tanaka formula estimates a maximum heart rate of about 180 bpm. That puts your Zone 2 (easy aerobic) at roughly 108–126 bpm and your Zone 4 (threshold) at 144–162 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 40) |
| 1 | Recovery | 50–60% | 90–108 |
| 2 | Endurance | 60–70% | 108–126 |
| 3 | Aerobic | 70–80% | 126–144 |
| 4 | Threshold | 80–90% | 144–162 |
| 5 | Maximum | 90–100% | 162–180 |
Formula Comparison for a 40-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 40 |
| Fox (220 − age) | 180 |
| Tanaka (208 − 0.7 × age) | 180 |
| Gellish (207 − 0.7 × age) | 179 |
| Nes / HUNT (211 − 0.64 × age) | 185 |
| Gulati (206 − 0.88 × age, women) | 171 |
Talk Test at Age 40
- Zone 2 (108–126 bpm): full conversation, easy nasal breathing.
- Zone 4 (144–162 bpm): only short phrases.
- Zone 5 (162–180 bpm): speech nearly impossible.
Related Age & Sport Pages
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