Before bringing a dog home, or years into ownership, most pet parents ask the same question: how much is this actually going to cost me every month? The honest answer is, it depends a lot on your dog's size and the type of food you choose, and the range is bigger than most people expect.
Monthly Cost by Dog Size (Dry Kibble)
As a rough baseline, using mid-range dry kibble:
Small dogs (under 20 lbs): roughly $20-40/month
Medium dogs (20-50 lbs): roughly $35-65/month
Large dogs (50-90 lbs): roughly $55-100/month
Extra-large dogs (90+ lbs): roughly $80-150/month
These ranges assume a reasonably priced, mid-tier kibble. Budget brands can come in lower, and premium or prescription diets can run significantly higher.
Monthly Cost by Food Type
The type of food matters as much as your dog's size:
Dry kibble: the most budget-friendly option overall, calorie-dense and shelf-stable
Wet or canned food: typically 2-4x the cost of kibble per calorie, due to water content and packaging
Fresh or subscription food (like Freshpet or The Farmer's Dog style products): often the most expensive category, frequently $150-300+/month for larger dogs, though portion-controlled subscriptions can moderate this somewhat
Raw or freeze-dried diets: generally the priciest option per calorie, often exceeding fresh food costs
What Else Factors Into the Real Number
Monthly food cost isn't just the bag price. A few things that shift your actual spend:
Treats and chews can add $10-30/month depending on frequency and brand
Supplements (joint support, omega oils, probiotics) commonly add $10-25/month if used regularly
Portion accuracy matters more than people expect, overfeeding by even 10-15% compounds into real monthly cost over a year
How to Lower Your Actual Monthly Cost
A few practical, non-brand-switching ways to bring the number down:
Buy the largest bag size your storage and shelf life allow. Larger bags almost always have a better cost per pound.
Measure portions precisely rather than eyeballing them, this alone often cuts waste and overfeeding.
Compare cost per calorie, not cost per bag, a pricier bag with higher calorie density can actually cost less per feeding.
Stack qualifying cashback on top of your regular purchases. This is the step most pet parents miss entirely. PetBux is a cashback marketplace built exclusively for pet parents, you shop the same brands you already buy, and earn real cash back on qualifying purchases, at no cost to join. Applied consistently every month, this alone can meaningfully lower your effective monthly spend without changing what you feed your dog at all.
The Bottom Line
Most dog owners land somewhere between $30 and $150 a month depending on size and food type, with fresh and raw diets pushing well beyond that. The good news is the food itself doesn't need to change to bring your real cost down, buying smarter, portioning accurately, and earning qualifying cash back on purchases you're already making can meaningfully shrink that number.
Related reading: How to Save Money on Dog Food Without Switching to Cheap Brands and Best Dog Food Under $50, $100, and $150.
