Rhodesian Ridgeback Ideal Weight and Diet

Adult standard 31.8 kg–38.6 kg (70 lb–85 lb). A neutered adult in the middle of that range needs about 1,619 kcal a day. Large breed, Hound group, typically 10–10 years.

Feeding a Rhodesian Ridgeback

1,619 kcal a day

Cups a day: 4.3
Per meal (×2): 809 kcal
Resting need: 1,012 kcal
Breed standard: 31.8–38.6 kg

31.8 kg within the breed standard 38.6 kg

Daily calories by life stage

Daily calorie needs for a Rhodesian Ridgeback by life stage
Life stage	Factor	Per day	Cups
Neutered adult	×1.6	1,619 kcal	4.3
Intact adult	×1.8	1,821 kcal	4.8
Obesity-prone	×1.4	1,416 kcal	3.7
Weight loss	×1.0	1,012 kcal	2.7
Puppy under 4 months	×3.0	3,035 kcal	8.0
Puppy 4-12 months	×2.0	2,023 kcal	5.3

This is a starting point, not a prescription. Breed standards are ranges and calorie formulas are estimates that a vet refines by watching the animal. Talk to your veterinarian before changing a diet, and especially before starting a weight-loss plan — sudden weight change can itself be a symptom worth investigating.

What the standard actually says

The AKC standard for the Rhodesian Ridgeback gives an adult weight of 31.8 kg–38.6 kg and a height of 61–69 cm (24–27 in) at the shoulder. That spread is not sloppiness — it covers the difference between a small female and a large male of the same breed, and both are correct.

Calories follow weight, but not in a straight line. Energy need scales with bodyweight to the power of 0.75, not to the power of one. A dog at the top of this range needs 16% more food than one at the bottom, even though it weighs 21% more. That is why feeding by eye across two dogs of the same breed goes wrong so easily.

Neutering matters more than most owners expect. The same Rhodesian Ridgeback needs about 1,821 kcal intact and 1,619 kcal neutered — roughly 11% less. Feeding the old amount after the operation is one of the commonest routes to a slowly overweight dog.

Across the breed's weight range

Rhodesian Ridgeback calorie needs across the breed standard
Point in range	Weight	Pounds	Resting need	Neutered adult
Bottom of standard	31.8 kg	70 lb	937 kcal	1,500 kcal
Middle of standard	35.2 kg	78 lb	1,012 kcal	1,619 kcal
Top of standard	38.6 kg	85 lb	1,084 kcal	1,734 kcal

By life stage

Rhodesian Ridgeback calorie needs by life stage
Life stage	Factor	Per day	Cups
Neutered adult	×1.6	1,619 kcal	4.3
Intact adult	×1.8	1,821 kcal	4.8
Obesity-prone	×1.4	1,416 kcal	3.7
Weight loss	×1.0	1,012 kcal	2.7
Puppy under 4 months	×3.0	3,035 kcal	8.0
Puppy 4-12 months	×2.0	2,023 kcal	5.3

At 35.2 kg, the middle of the standard. Cups assume 380 kcal per cup — check your own bag.

Frequently asked questions

How much should a Rhodesian Ridgeback weigh?

The AKC breed standard puts an adult Rhodesian Ridgeback between 31.8 kg and 38.6 kg — 70 lb to 85 lb. That is a range rather than a target: a dog at the bottom of it is not underweight and one at the top is not overweight. Frame, sex and body condition all move the right figure for an individual dog, which is why vets judge body condition score rather than the scales alone.

How many calories does a Rhodesian Ridgeback need a day?

A neutered adult at the middle of the standard (35.2 kg) needs roughly 1,619 kcal a day — about 4.3 cups of typical dry food at 380 kcal per cup. An intact dog of the same size needs closer to 1,821, and a puppy under four months around 3,035.

How is the calorie figure worked out?

Resting Energy Requirement is 70 × bodyweight in kilograms to the power of 0.75, the standard allometric formula. That is then multiplied by a life-stage factor — 1.6 for a neutered adult, 1.8 intact, 3.0 for a puppy under four months. It is a starting point that a vet adjusts by watching how the dog responds, not a prescription.

How much should I feed a Rhodesian Ridgeback to lose weight?

A weight-loss plan is fed to the target weight, not the current one — feeding maintenance calories for a body the dog already has is why diets stall. Select "weight loss" in the calculator and enter the target your vet agreed. Never start a weight-loss diet without that conversation: rapid loss is dangerous, and sudden weight change can itself be a symptom.

How long do Rhodesian Ridgebacks live?

The AKC gives a typical lifespan of 10–10 years for the Rhodesian Ridgeback. Keeping a dog at a lean body condition through its life is one of the few things shown to extend it.

Breed standard: American Kennel Club breed standards. Energy formula: Merck Veterinary Manual, nutritional requirements of small animals.

Estimates for informational purposes only and not veterinary advice. Breed standards are ranges, not targets, and healthy weight varies with frame, age, neuter status and body condition score. Calorie formulas are a starting point that a vet adjusts by watching how the dog responds. Talk to your veterinarian before changing a diet, and especially before a weight-loss plan.