Dog and cat food calculator: daily amount and monthly cost.

Enter your pet’s weight and life stage to get daily grams, calories and what feeding them costs each month.

Pet profile and dietLive calculation

Weight (lb)18.1 kg

Use your pet’s current weight.

Life stage

Food type

Calories (kcal/kg)Optional. On the bag as kcal/kg or ME.Calories per cup (kcal)Optional. On the bag as kcal/cup. Shows cups a day.Price per lb ($)Optional. Blank hides the cost.

Updates as you type

Recommended daily amount

Daily feeding and cost

Daily food

274 g about 9.6 oz

Two meals of about 137 g each is typical.

Daily energy985 kcalRER × 1.6

Food a month18.4 lbabout 8.3 kg

Estimated food cost

$46 a month

$551 a year at a $2.50/lb example price. Enter yours for a real figure.

Energy split63% resting / 38% activity and growth

Resting 615 kcal, plus 369 kcal.

A starting point from the standard resting-energy formula, not a prescription. Adjust by body condition and ask your vet, especially for puppies, kittens or a pet with a health condition. Treats should stay under 10% of daily calories.

Add food to a full monthly and lifetime budget

How the daily amount is calculated

Resting energy (RER)

The calories a pet burns at rest.

RER = 70 × (weight in kg)^0.75

Life-stage factor

Growth, spaying or neutering, age and activity change the need.

kcal per day = RER × factor

Grams and cost

Calories become grams of food, then pounds a month, then dollars.

grams = kcal ÷ kcal per kg × 1000

Based on WSAVA and AAHA nutrition guidance. Full detail on the methodology page.

Typical feeding cost by pet size

Neutered adults on dry food at an example $2.50 per lb. Your food and price will differ.

Pet	Weight	Daily food	Daily calories	Food a month	Cost a month
Domestic Shorthair (cat)	10 lb	67 g	261 kcal	4.5 lb	$11
French Bulldog	25 lb	192 g	692 kcal	12.9 lb	$32
Golden Retriever or Labrador	65 lb	394 g	1417 kcal	26.4 lb	$66
German Shepherd	75 lb	438 g	1578 kcal	29.4 lb	$74
Great Dane or Mastiff	130 lb	662 g	2383 kcal	44.4 lb	$111

Plan the rest of your pet’s costs

Full cost calculatorFood, grooming, insurance and vet care in one monthly and lifetime budget.Emergency fund calculatorHow much to save for vet emergencies, and the monthly plan to get there.Pet food safety guideCan dogs and cats eat it? Safe, caution and toxic foods, with sources.

Pet feeding FAQ

How much should I feed my dog or cat?

Start from resting energy requirement, 70 × (body weight in kg)^0.75 calories a day, then multiply by a life-stage factor, for example 1.6 for a neutered adult dog or 1.2 for a neutered adult cat. Divide by the calories in your food to get grams.

Why is my bag's feeding chart different?

Bag charts are broad averages by weight band and often run high. This calculator uses your pet's life stage. Either way, adjust by body condition: you should feel the ribs without seeing them.

How much does it cost to feed a dog or cat per month?

It depends on weight and food price. A 40 lb adult dog eats roughly 20 lb of dry food a month, and a 10 lb adult cat roughly 4 lb. Enter your price per lb for your own figure.

Not veterinary advice.