How old is your dog?
Puppy (under 18 months)
Adult
Older dog
Puppy's age:
4
months
Fully vaccinated, and a week has passed since the last jab
Large or giant breed
How energetic is your dog?
Laid-back
Average
Always on (working types)
What is the weather like?
Cold or cool
Mild
Hot
Flat-faced breed (pug, bulldog, etc.)
My vet has mentioned a joint, heart, breathing or weight problem
A starting point from published guidance, not a prescription. Your dog's mood after the walk is the real test.