How Much Dog Food Per Month? Lebanon Guide | PetNest

BUYING GUIDE

How Much Dog Food Does Your Dog Need Per Month?

By PetNest Lebanon · Prices updated 5 November 2026

Knowing how much your dog eats in a month helps you pick the right bag size, compare the real cost of each food and reorder before you run out. These are estimates for a healthy adult dog with normal activity. The feeding table on your bag always comes first.

Quick answer

Monthly dry food by dog weight

Estimated dry food for a healthy adult dog
Dog weightPer dayPer 30 daysA 15kg bag lasts
5kgabout 100gabout 3kgabout 5 months
10kgabout 170gabout 5kgabout 3 months
20kgabout 290gabout 8.5kgabout 7–8 weeks
30kgabout 390gabout 11.5kgabout 5–6 weeks
40kgabout 480gabout 14.5kgabout 4 weeks

These figures use a standard estimate of daily energy needs for a neutered adult dog and a food with about 3,700 kcal per kg. Foods with more or fewer calories change the amount, so a richer food can last longer than a cheaper one. Small dogs do better with a smaller bag, because an opened bag is best used within about six weeks.

What changes the amount

What it costs for a 20kg dog

Estimated monthly cost at about 8.5kg of food
ProductBest forProteinFatPricePrice per kgMonthly food cost (20kg dog)
Rico Lamb Adult Dry Dog Food, 15kgBudget, adult dogs18%8%$25.30$1.69$14.34
Juno Chicken Adult Dry Dog Food, 15kgBudget, all breeds22%12%$29.00$1.93$16.43
Signature Lamb Medium & Large Breed Adult Dog Food, 12kgMedium & large breeds26%15%$40.70$3.39$28.83
Josera Poultry-Menu Adult Chicken & Rice Dog Food, 12.5kgEveryday, chicken & rice25%13%$53.00$4.24$36.04
Purina Pro Plan Medium Adult Sensitive Digestion Lamb Dry Dog Food, 14kgSensitive digestion26%16%$96.30 $107.00$6.88$58.47

Monthly cost multiplies today’s price per kg by 8.5kg, so it changes with prices and sales. It is a comparison, not an exact bill.

How to weigh a daily portion

Weigh one day of food once on a kitchen scale, then mark that level on a cup. Split it into two meals. Change foods over about 7 days, and always leave fresh water out.

Questions

How much should a 20kg dog eat per day?

About 290g of dry food a day for a healthy adult dog, or about 8.5kg a month. Check the feeding table on your bag, since calories differ between foods.

How long does a 15kg bag of dog food last?

About 7–8 weeks for a 20kg dog and about 4 weeks for a 40kg dog.

Is a bigger bag cheaper?

Usually the price per kg is lower on bigger bags, but compare the price per kg for your food. Heat and humidity also matter: keep opened food cool and dry, and use an opened large bag within about six weeks.

Does this work for puppies?

No. Puppies need a puppy food and the amount on its feeding table, based on age and expected adult weight.

How fast do you deliver dog food?

Orders inside Beirut arrive the next day, and orders outside Beirut take 2-3 days. You pay cash on delivery.