Australian Shepherd Feeding Calculator
Get your Australian Shepherd's portions right — calculated for their weight, life stage, and the exact food in your bag. Because the chart on the bag doesn't know your dog.
Values auto-fill from the food you pick. Can't find yours? Choose “My food isn't listed” in the search and copy the numbers from the bag's Calorie Content (ME) label — dry foods typically run 3,300–4,200 kcal/kg.
Australian Shepherd feeding notes
Aussies are high-drive herding dogs whose calorie needs swing with workload: a 25 kg pet-level adult needs about 1,250 kcal a day (RER = 70 × 25^0.75 = 783, × 1.6), but a dog training daily for agility or working stock can need 1,570+ (RER × 2.0) — feed to body condition, not a fixed chart, and recalculate whenever the workload changes. Puppies should grow slowly and lean on a large-breed formula with controlled calcium (0.7–1.2%) until 12–18 months. One non-diet note that matters at every vet visit: the breed is among those most commonly affected by the MDR1 drug-sensitivity mutation.
Australian Shepherd puppy growth chart — male & female
Healthy weight ranges by age. A puppy slightly lean is healthier than slightly heavy — especially for large breeds.
♂ Male
| Age | Range (kg) |
|---|---|
| 2 mo | 5 – 6.5 |
| 3 mo | 8.5 – 11 |
| 4 mo | 12 – 15 |
| 5 mo | 16 – 19.5 |
| 6 mo | 19.5 – 23.5 |
| 8 mo | 23 – 28 |
| 12 mo | 26 – 31 |
| 18 mo | 16 – 32 |
♀ Female
| Age | Range (kg) |
|---|---|
| 2 mo | 4.5 – 6 |
| 3 mo | 8 – 10 |
| 4 mo | 11 – 14 |
| 5 mo | 14.5 – 18 |
| 6 mo | 17.5 – 21.5 |
| 8 mo | 21 – 25.5 |
| 12 mo | 24 – 28.5 |
| 18 mo | 14.7 – 29.4 |
Reference: Weight: breed-standard data via Wikipedia (35-70 lb / 16-32 kg, single range, no sex split) — female range derived as ×0.92 (estimate); akc.org weight block is JS-rendered and was not retrievable; growth midpoints per large-breed developmental ratios (estimate); MDR1: Washington State University veterinary pharmacology lab via Wikipedia; hip dysplasia ~6%: Loder & Todhunter 2017; lifespan: McMillan et al. 2024. Always confirm against your vet's assessment — individual lines vary.
Feeding guide by growth stage
Meal frequency and food type for a growing Australian Shepherd:
| Age | Meals | Food type | Watch for |
|---|---|---|---|
| 8–12 weeks | 3–4 × daily | large-breed puppy formula (controlled calcium 0.7–1.2%) | Soak kibble warm water 10 min if still soft; weigh weekly. |
| 3–6 months | 3 × daily | large-breed puppy formula (controlled calcium 0.7–1.2%) | Peak growth — feed to the chart, never free-feed; keep puppy lean. |
| 6–12 months | 2 × daily | large-breed puppy formula (controlled calcium 0.7–1.2%) | Growth slows; reduce portions if ribs get hard to feel. |
| → adult (12–14 months) | 2 × daily | adult formula | Transition over 7–10 days, mixing increasing adult food. |
| 14–18 months | 2 × daily | adult formula | Growth plates close — higher-impact exercise now OK. |
Australian Shepherd milestones
What happens when — eyes, teeth, maturity, and when hard exercise is safe:
Frequently asked questions
How much should an Australian Shepherd eat per day?
A 25 kg neutered adult needs roughly 1,250 kcal per day (RER = 70 × 25^0.75 = 783, × 1.6) — about 3 cups of a typical 400 kcal/cup food. A dog in serious training or working stock needs closer to 1,570 kcal (RER × 2.0), while a sedentary house dog needs less: use the calculator with your dog's actual weight and workload.
When should I switch my Australian Shepherd puppy to adult food?
At 12–18 months. Aussies grow into a 16–32 kg frame, so feed a large-breed puppy formula with controlled calcium (0.7–1.2% dry matter per AAFCO guidelines) for slow, steady growth — overfeeding a large-breed puppy is a recognized risk factor for developmental joint disease. Transition over 7–10 days once height growth has leveled off.
How much should an Australian Shepherd puppy eat?
Growing puppies need roughly twice an adult's calories per kilogram, split into 3 meals a day. By the chart above, a male runs about 8.5–11 kg at 3 months — a 9.5 kg puppy needs around 760 kcal (RER 379 × 2) — and 19.5–23.5 kg at 6 months. Keep the growth curve smooth and lean; a chunky puppy is growing too fast.
What is MDR1 sensitivity in Australian Shepherds?
Aussies are one of the breeds more commonly affected by a mutation in the MDR1 (ABCB1) gene, which allows drugs such as ivermectin, loperamide and some sedatives to reach the brain at harmful levels. It changes medications, not meals — but tell your vet before dewormers, heartworm preventives or anesthesia. A cheek-swab test through Washington State University's veterinary pharmacology lab identifies affected dogs.
Do Australian Shepherds need performance food?
In heavy training seasons, often yes: higher-fat performance formulas help hard-working dogs hold condition. The rest of the year, most pet Aussies do fine on ordinary adult maintenance food — but cut the portion back when training stops, or the same dog steadily gains weight. Judge by body condition (ribs easily felt, visible waist) rather than appetite: the breed is famously active and becomes destructive without adequate exercise, so workload and rations have to move together.