Dog Food Portion Calculator
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Planning estimate only — not veterinary advice. Ask your veterinarian for health decisions. Rough daily dry-food portion from body weight and activity — confirm with your vet and food label.
Rates last reviewed: July 2026
Dog weight & activity
Daily portion
1.25 lb
20 oz · 2.5 cups (8 oz)
- Activity level
- moderate
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Daily dog food portions
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.
Official sources
Rates and formulas in this calculator reference the documentation below. Confirm current numbers on the source site before relying on them. Links do not imply endorsement by those organizations of Calcometry or this tool.
Common questions
Does this replace my vet’s feeding plan?
No. Puppies, seniors, working dogs, and prescription diets need individualized plans. Use this as a starting estimate and adjust with your veterinarian.
Wet food vs dry kibble?
This tool estimates total daily food weight. Wet food is much less calorie-dense per ounce — follow the can label or ask your vet when mixing formats.
How do I know if the portion is right?
Weigh your dog every two weeks and check body condition. Increase or decrease the daily amount if ribs are hard to feel or waist definition disappears.