Pre-solved maximum heart rate for age 20. Tanaka (2001): 194 bpm | Fox (220-age): 200 bpm | Gellish (2007): 193 bpm. Training zones (Tanaka): Z1 Warm-up 97-116 bpm, Z2 Fat Burn 116-136 bpm, Z3 Aerobic 136-155 bpm, Z4 Threshold 155-175 bpm, Z5 VO2 Max 175-194 bpm. AHA moderate intensity: 97-136 bpm. ..
ESTIMATED MAX HEART RATE — AGE 20
194
Tanaka (2001)
Most accurate
208 − 0.7 × age
200
Fox (220−age)
Classic formula
220 − age
193
Gellish (2007)
Validated
207 − 0.7 × age
Max HR declines ~0.7 bpm/year · AHA moderate: 97–136 bpm · Vigorous: 136–165 bpm
5 TRAINING ZONES — AGE 20 (Tanaka HRmax 194 bpm)
| Zone | % | BPM Range | Benefit |
|---|---|---|---|
| Z1 Warm-up | 50-60% | 97–116 | Recovery, very easy |
| Z2 Fat Burn | 60-70% | 116–136 | Fat oxidation, aerobic base |
| Z3 Aerobic | 70-80% | 136–155 | Cardiovascular fitness |
| Z4 Threshold | 80-90% | 155–175 | Lactate threshold, race pace |
| Z5 VO2 Max | 90-100% | 175–194 | Max cardiac output |
| AHA Moderate | 50–70% | 97–136 | 150 min/week recommended |
| AHA Vigorous | 70–85% | 136–165 | 75 min/week recommended |
Maximum heart rate declines ~0.7 bpm per year after age 20. At age 20, the three validated formulas give 194 bpm (Tanaka), 200 bpm (Fox), and 193 bpm (Gellish). The Tanaka formula is recommended as the most accurate.
What is the maximum heart rate for a 20-year-old?
For a 20-year-old, the estimated maximum heart rate (HRmax) is:\n\nTanaka (2001) — recommended: 194 bpm\nFormula: 208 − (0.7 × 20) = 194 bpm\n\nFox (1971) — classic: 200 bpm\nFormula: 220 − 20 = 200 bpm\n\nGellish (2007) — validated: 193 bpm\nFormula: 207 − (0.7 × 20) = 193 bpm\n\nTraining zones at age 20 (using Tanaka HRmax 194 bpm):\nZ1 Warm-up (50-60%): 97-116 bpm\nZ2 Fat Burn (60-70%): 116-136 bpm\nZ3 Aerobic (70-80%): 136-155 bpm\nZ4 Threshold (80-90%): 155-175 bpm\nZ5 VO2 Max (90-100%): 175-194 bpm\n\nAHA moderate exercise target (50-70%): 97-136 bpm\nAHA vigorous exercise target (70-85%): 136-165 bpm\n\nNote: These are population averages. Your actual HRmax may vary by ±10-12 bpm. The only accurate way to measure HRmax is via a maximal graded exercise test under medical supervision.
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Max heart rate age 20 · Tanaka: 194 bpm · Fox: 200 bpm · Gellish: 193 bpm · Sources: Tanaka et al. (2001), Fox (1971), Gellish et al. (2007)