Different formulas can be used:

• Tanaka Formula: 208 - (0.7 × age)
• Haskell-Fox Formula: 220 - age
• Gellish Formula: 207 - (0.7 × age)
• National Exercise Standard:
  • Woman: 206 - (0.88 × age)
  • Man: 203 - (0.66 × age)

Heart Rate Zones:

• Very Light: 50 % - 60 %
• Light: 60 % - 70 %
• Medium: 70 % - 80 %
• High: 80 % - 90 %
• Maximum: 90 % - 100 %