Dog Food Portion Calculator

Many feeding charts start with a percentage of ideal body weight: roughly 2% for low activity, 2.5% for moderate, and 3% for high activity. That percentage converts to pounds or ounces of food per day before you split it across meals.

WSAVA and veterinary nutrition references emphasize body condition score over a fixed scoop — adjust portions every two weeks so your dog stays lean. Treats, table scraps, and wet food calories are not included unless you fold them into the daily amount.

Example: a 50 lb moderately active dog at 2.5% needs about 1.25 lb (20 oz, roughly 2.5 eight-ounce cups) of dry food per day. A 23 kg dog at the same activity level needs about 575 g.

WSAVA guidance emphasizes body condition over a fixed scoop — adjust percentages if ribs are hard to find.

Puppies and nursing dams need vet-specific plans, not adult percentage rules.

Worked example: 50 lb dog, moderate activity → ~1.25 lb/day dry food (~20 oz).

Neutered adults often need 10–20% fewer calories than intact dogs at the same weight — the moderate activity default assumes typical spay/neuter metabolism; bump to high activity only for daily running or working dog jobs. Neutered adults often need 10–20% fewer calories — moderate activity default assumes typical spay/neuter metabolism unless your vet says otherwise.

Kibble calorie density varies from 300 to 450 kcal/cup — portion by weight (1.25 lb/day for 50 lb moderate) then translate to cups using your bag's label, not a generic cup chart from a different brand. Kibble kcal/cup varies 300–450 — convert 1.25 lb/day for a 50 lb dog to cups using your bag label, not a generic chart.

A 50 lb dog on moderate activity → ~1.25 lb/day dry (~20 oz). Split into two meals of ~10 oz each; free-feeding the full daily amount often leads to overweight scores even when the total matches the calculator. Fifty-pound moderate dog ~1.25 lb/day (~20 oz) split into two meals — free-feeding the daily total often leads to overweight scores.