Zone 2 Heart Rate for a 30-Year-Old
A 30-year-old training in Zone 2 should target roughly 112–131 bpm, calculated as 60–70% of an estimated HRmax of 187. This is the aerobic-base zone where mitochondrial density, fat oxidation and stroke volume adapt most strongly — and the intensity you can hold in full conversation for 60–90 minutes.
Your Zone 2 Range
60% of 187 = 112 bpm. 70% of 187 = 131 bpm. Stay inside this band for easy aerobic development.
| Zone |
Name |
% HRmax |
BPM (age 30) |
| 1 | Recovery | 50–60% | 94–112 |
| 2 | Endurance | 60–70% | 112–131 |
| 3 | Aerobic | 70–80% | 131–150 |
| 4 | Threshold | 80–90% | 150–168 |
| 5 | Maximum | 90–100% | 168–187 |
Karvonen Adjustment (Personalised)
If you know your resting heart rate, Karvonen gives a more accurate Zone 2. Example for a 30-year-old with RHR 60: Zone 2 = 60 + (187 − 60) × (0.60 to 0.70) = 136–149 bpm.
Weekly Structure at Age 30
Most recreational athletes get the biggest return from 3–5 Zone 2 sessions of 45–75 minutes per week, plus one Zone 4 session for lactate-threshold stimulus. Sleep quality and recovery capacity become the limiter — not intensity.
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