Calcolatore Calorie Bruciate

def calories_burned(met: float, weight_kg: float, duration_hours: float) -> float:
    """
    MET-based calorie burn formula.
    Calories = MET * weight(kg) * duration(hours)
    MET 1.0 = resting metabolic rate (kcal/kg/h).
    """
    return met * weight_kg * duration_hours

# Common activities with approximate MET values
activities = [
    ("Walking 4 km/h",          2.8),
    ("Walking 6 km/h",          4.0),
    ("Cycling 15 km/h",         6.0),
    ("Jogging 8 km/h",          8.0),
    ("Running 12 km/h",        11.5),
    ("Swimming (moderate)",     6.0),
    ("Strength training",       5.0),
    ("Yoga",                    2.5),
    ("High-intensity interval", 12.0),
    ("Sitting (rest)",           1.0),
]

weight_kg = 70.0
duration_min = 30
duration_h = duration_min / 60

print(f"Calorie burn for {weight_kg} kg person, {duration_min} minutes:")
print(f"{'Activity':<30} {'MET':>5}  {'kcal':>6}")
print("-" * 45)
for name, met in activities:
    kcal = calories_burned(met, weight_kg, duration_h)
    print(f"{name:<30} {met:>5.1f}  {kcal:>6.0f}")

# Weekly summary
weekly = [
    ("Running 8 km/h",  8.0, 30),
    ("Cycling 15 km/h", 6.0, 45),
    ("Yoga",            2.5, 60),
]
total = sum(calories_burned(m, weight_kg, d/60) for _, m, d in weekly)
print(f"\nWeekly total: {total:.0f} kcal")