How Much Exercise Does Your Pet Actually Need?
“Enough exercise” varies more between animals than almost any other care question, and getting it wrong in either direction causes problems.
Species, size, and life stage
The exercise calculator sets a base target from species and, for dogs, adult size, then scales it by life stage. A large adult dog comes out at about 90 minutes a day, split into three sessions of 30 — which is more than many owners assume and less than working breeds actually want.
A small senior dog comes out at 31 minutes across two sessions of about 16. Shorter and more frequent is the pattern for both ends of life, for different reasons.
Puppies: short bursts, and do not overdo it
Growing joints and growth plates are vulnerable, and sustained forced exercise — long runs, repetitive jumping, cycling alongside — is a genuine risk in large-breed puppies, where growth plates stay open longer.
The pattern that suits a puppy is frequent short bursts of self-directed play rather than long structured walks. Free play on soft ground, where the puppy chooses when to stop, is safer than any distance target.
Seniors: gentler, not less
The instinct with an older animal is to cut exercise, and the better answer is usually to change its shape. Two shorter walks are easier on stiff joints than one long one, and consistency matters more than duration — sporadic bursts of activity after days of rest are how older dogs get sore.
Reluctance to exercise in an older animal is worth investigating rather than accommodating. Arthritis is common, treatable, and frequently mistaken for simply slowing down.
Cats need it too
Indoor cats are the most under-exercised pets in most households, and the consequences are weight gain and behavioural problems. Cats do not walk; they hunt, in short intense bursts.
Ten or fifteen minutes of wand play, twice a day, does more than an hour of anything continuous — cats are sprinters, not endurance animals. Feeding puzzles and food placed somewhere that requires climbing turn eating into activity, which suits their design.
Breed matters more than the calculator can know
The figure is a starting point from size and stage, and it cannot know that a border collie and a bulldog of identical weight have entirely different requirements. Working breeds may need double; brachycephalic breeds — the flat-faced ones — need considerably less and must be watched carefully in heat, because they cannot cool themselves efficiently.
Heat is the specific danger there. A flat-faced dog can get into serious trouble on a walk that another dog would find easy.
Mental work counts
Scent work, training sessions, puzzle feeders and new environments all tire a dog in a way distance does not, and for a bored dog they often address the problem better than more walking. Twenty minutes of nose work can settle a dog that an hour of the same route did not.
Build up gradually
An unfit or overweight animal should work toward its target rather than start at it. Increase gradually, watch for lameness or reluctance the following day, and stop if anything is sore.
General information, not veterinary advice. Check with your vet before a significant change in exercise, especially for an animal with a health condition.
Daily minutes, by size and life stage
| Dog size | Puppy | Adult | Senior | Adult, split |
|---|---|---|---|---|
| Small | 27 min | 45 min | 31 min | 2 × 23 min |
| Medium | 36 min | 60 min | 42 min | 3 × 20 min |
| Large | 54 min | 90 min | 63 min | 3 × 30 min |
| Giant | 36 min | 60 min | 42 min | 3 × 20 min |
A large adult dog wants about 90 minutes a day, best split into 3 sessions of roughly 30. An adult cat wants 30 minutes, in 2 short bursts rather than one long one.
Why the split matters as much as the total
Two 30-minute walks and one 90-minute walk are the same arithmetic and not the same day. Dogs are better off with the exercise distributed — it spreads toileting, breaks up the hours alone, and avoids the weekend-warrior pattern where a sedentary week is followed by a long hike.
Cats are the extreme case: 2 bursts of a few minutes each maps onto how they actually hunt, and a single long play session mostly produces a cat that walks away halfway through.
Puppies need less, not more
The puppy row is lower than the adult row on purpose. Growing joints do not tolerate long repetitive exercise, and the widely-used rule of thumb is a few minutes per month of age, once or twice a day.
Free play in a garden is different from a forced-pace walk, and the restriction is about the second. A puppy that plays until it flops and then sleeps is doing the right thing; a puppy taken on a five-kilometre run is not.
Seniors need adapting, not stopping
The senior figure drops to 63 minutes for a large dog, and the shape changes more than the total: shorter, gentler, more frequent, on softer ground.
Stopping altogether is worse than reducing. Muscle supports joints, and an older animal that stops moving loses the muscle that was making movement comfortable.
What these numbers assume
A healthy animal of typical build. Breed changes it enormously — a working breed at the large size wants far more than the table says, and a flat-faced breed of the same weight wants considerably less and needs care in heat.
Any pet that tires quickly, limps, coughs after exercise, or struggles to recover should be seen rather than encouraged. Exercise intolerance is a symptom, and the calculator has no way of knowing it is looking at one.
The honest test
How the animal is an hour afterwards, and the next morning. Settled and comfortable means the amount was right; sore, stiff or flat means it was not, whatever the table said.
Adjust from there rather than from the number. The table is a starting point for an animal you have not met; you have.
This is general information, not veterinary advice. Every figure here is a starting point for a conversation with your own vet, who knows the animal in front of them. Anything sudden, painful, or getting worse is a call to a clinic rather than a calculation.