Pre-solved maximum heart rate for age 48. Tanaka (2001): 174 bpm | Fox (220-age): 172 bpm | Gellish (2007): 173 bpm. Training zones (Tanaka): Z1 Warm-up 87-104 bpm, Z2 Fat Burn 104-122 bpm, Z3 Aerobic 122-139 bpm, Z4 Threshold 139-157 bpm, Z5 VO2 Max 157-174 bpm. AHA moderate intensity: 87-122 bpm. ..
ESTIMATED MAX HEART RATE — AGE 48
174
Tanaka (2001)
Most accurate
208 − 0.7 × age
172
Fox (220−age)
Classic formula
220 − age
173
Gellish (2007)
Validated
207 − 0.7 × age
Max HR declines ~0.7 bpm/year · AHA moderate: 87–122 bpm · Vigorous: 122–148 bpm
5 TRAINING ZONES — AGE 48 (Tanaka HRmax 174 bpm)
| Zone | % | BPM Range | Benefit |
|---|---|---|---|
| Z1 Warm-up | 50-60% | 87–104 | Recovery, very easy |
| Z2 Fat Burn | 60-70% | 104–122 | Fat oxidation, aerobic base |
| Z3 Aerobic | 70-80% | 122–139 | Cardiovascular fitness |
| Z4 Threshold | 80-90% | 139–157 | Lactate threshold, race pace |
| Z5 VO2 Max | 90-100% | 157–174 | Max cardiac output |
| AHA Moderate | 50–70% | 87–122 | 150 min/week recommended |
| AHA Vigorous | 70–85% | 122–148 | 75 min/week recommended |
ZONE BARS — HRmax 174 bpm
FORMULA COMPARISON — AGE 48
Maximum heart rate declines ~0.7 bpm per year after age 20. At age 48, the three validated formulas give 174 bpm (Tanaka), 172 bpm (Fox), and 173 bpm (Gellish). The Tanaka formula is recommended as the most accurate.
What is the maximum heart rate for a 48-year-old?
For a 48-year-old, the estimated maximum heart rate (HRmax) is:\n\nTanaka (2001) — recommended: 174 bpm\nFormula: 208 − (0.7 × 48) = 174 bpm\n\nFox (1971) — classic: 172 bpm\nFormula: 220 − 48 = 172 bpm\n\nGellish (2007) — validated: 173 bpm\nFormula: 207 − (0.7 × 48) = 173 bpm\n\nTraining zones at age 48 (using Tanaka HRmax 174 bpm):\nZ1 Warm-up (50-60%): 87-104 bpm\nZ2 Fat Burn (60-70%): 104-122 bpm\nZ3 Aerobic (70-80%): 122-139 bpm\nZ4 Threshold (80-90%): 139-157 bpm\nZ5 VO2 Max (90-100%): 157-174 bpm\n\nAHA moderate exercise target (50-70%): 87-122 bpm\nAHA vigorous exercise target (70-85%): 122-148 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 48 · Tanaka: 174 bpm · Fox: 172 bpm · Gellish: 173 bpm · Sources: Tanaka et al. (2001), Fox (1971), Gellish et al. (2007)