How Much to Feed a 30 kg Dog (66.1 lb)

Quick answer A neutered adult dog of 30 kg (66.1 lb) needs about 1,436 kcal a day, which is about 399 g of a 3,600 kcal/kg dry food. Weigh your dog monthly and adjust by about 10% if the trend is wrong.

Daily calories and grams for a 30 kg (66.1 lb) dog

Resting energy for 30.0 kg is 897 kcal (70 × 30.0^0.75). Multiply by the factor for the life stage to get the day's energy, then divide by the food's kcal per gram.

Life stage	kcal a day	g at 3,400 kcal/kg	g at 3,600 kcal/kg	g at 3,800 kcal/kg
Neutered adult	1,436	422	399	378
Intact adult	1,615	475	449	425
Inactive or prone to weight gain	1,256	369	349	331
Puppy under 4 months	2,692	792	748	708
Puppy 4 months to adult	1,795	528	499	472

These are averages from the Merck/WSAVA energy factors. Your dog may need 10 to 20% more or less. Check the energy on your own food's label and use the calculator below.

Meals, treats, water and cost

Two meals a day (neutered adult)	199 g each
Three meals a day	133 g each
Treat allowance (10% of calories)	144 kcal: 48 pieces of 3 kcal, or 3.8 of 38 kcal
Water (about 50 mL per kg)	1,500 mL (range 1,200 to 1,800); call the vet above 3,000 mL
Dry food as a share of body weight	1.3% a day
Calories per kilogram of body weight	47.9 kcal per kg

Monthly food cost at example prices

Cost = grams a day × 30 ÷ 1,000 × price per kg. The prices are examples; use your own.

Price per kg	3.00	4.00	5.00	6.00
Dry food, 3,600 kcal/kg	35.89	47.86	59.82	71.78

How long a bag lasts

Bag size	2 kg	5 kg	10 kg	15 kg
Days at 399 g a day	5	13	25	38

A sample day for a 30 kg (66.1 lb) dog

One way to lay out a neutered adult's day on a 3,600 kcal/kg dry food, with treats counted inside the total.

Time	What	Amount
Morning	Meal	179 g
During the day	Treats and training rewards (counted)	144 kcal
Evening	Meal	179 g
All day	Fresh water (about 1,500 mL)	Always available

Meals are smaller than the table above because the treat allowance of 144 kcal is taken out of the day's 1,436 kcal: 1,292 kcal of meals is 359 g.

If you feed wet and dry together

Split the calories, not the grams. This uses a wet food of 1,000 kcal/kg and a dry food of 3,600 kcal/kg for a neutered adult needing 1,436 kcal.

Share of calories from wet food	Wet food	Dry food
25%	359 g	299 g
50%	718 g	199 g
75%	1,077 g	100 g

Do not add wet food on top of the full dry amount: that doubles the calories it replaces.

How 30 kg compares with nearby weights

Weight	kcal a day (neutered adult)	g of 3,600 kcal/kg food	kcal per kg of body weight
22 kg (48.5 lb)	1,138	316	51.7
25 kg (55.1 lb)	1,252	348	50.1
28 kg (61.7 lb)	1,363	379	48.7
30 kg (66.1 lb)	1,436	399	47.9
35 kg (77.2 lb)	1,612	448	46.0
40 kg (88.2 lb)	1,781	495	44.5
45 kg (99.2 lb)	1,946	541	43.2

If your 30 kg dog is overweight

Using the rule that each body-condition point above 5 (of 9) is about 10% over ideal weight, here is what a weight-loss plan could look like. The calorie target is 1.0 times resting energy at the goal weight, and the pace is 1 to 2% of body weight a week (AAHA 2014). Your vet should confirm the goal and the plan.

Body condition	Goal weight	kcal a day	g of 3,600 kcal/kg food	Weeks at 2% to 1% a week
6 of 9	27.3 kg (60.1 lb)	835	232	5 to 10
7 of 9	25.0 kg (55.1 lb)	783	217	10 to 19
8 of 9	23.1 kg (50.9 lb)	737	205	13 to 27

Not sure of your dog's score? The Dog Body Condition Score tool shows how to check, and the Dog Weight Loss Calculator works from your own goal weight.

Age and life stage if 30 kg (66.1 lb) is your dog's adult weight

Age charts group dogs by adult size. At 30 kg (66.1 lb) the size group is large, which adds 6 human years for each dog year after the second.

Dog's age	Human years (size chart)	Human years (epigenetic formula)
1 year	15.0	31.0
3 years	30.0	48.6
5 years	42.0	56.8
8 years	60.0	64.3
10 years	72.0	67.8
12 years	84.0	70.8

Why a dog twice as heavy does not eat twice as much

Energy needs rise with body weight to the power 0.75, not in a straight line. Moving from 30 kg to 35 kg is a 17% weight increase but only about 12% more calories. At 30 kg (66.1 lb), the neutered figure is 47.9 kcal per kg of body weight.

What changes your dog's number

Neutering and activity. The table shows a 10 to 30% spread between stages.
The food. A richer food means fewer grams for the same calories.
Treats. They count within the daily total.
Weight trend. Weigh monthly, score body condition and adjust by about 10%.
Health. A pet on a veterinary diet or with a health condition should follow the vet's plan.

Frequently asked questions

How much should a 30 kg (66.1 lb) dog eat a day?

A neutered adult of 30 kg (66.1 lb) needs about 1,436 kcal a day. On a 3,600 kcal/kg dry food that is about 399 g. Intact and inactive dogs need 1,615 and 1,256 kcal.

How many meals a day for a 30 kg dog?

Two meals of about 199 g, or three of about 133 g, using the same 3,600 kcal/kg food. Your vet may suggest a different pattern.

How many treats can a 30 kg dog have?

Treats should stay within about 10% of daily calories, which is 144 kcal: 48 pieces of 3 kcal or 3.8 pieces of 38 kcal. Subtract them from the meals.

My 30 kg dog is overweight. How many calories should it eat to lose weight?

If your dog is at body condition 7 of 9 (about 20% over ideal), a goal weight is about 25.0 kg (55.1 lb). A common weight-loss target is 1.0 times resting energy at the goal weight: about 783 kcal a day, or 217 g of a 3,600 kcal/kg food. At 1 to 2% of body weight a week that takes about 10 to 19 weeks. Your vet should confirm the goal and the plan.

How much water should a 30 kg dog drink?

About 1,500 mL a day (range 1,200 to 1,800 mL). Drinking more than about 3,000 mL a day is a reason to call your vet.

Other weights

Related guides

How we calculate: RER = 70 × kg^0.75, times the life-stage factor, as set out on Formulas & sources. This page is general information, not veterinary advice; ask your vet about your dog.