A practical UK guide to the cost of feeding your dog well — without overspending, underfeeding, or falling for misleading price comparisons.
There's No Single Right Answer
The cost of feeding a dog varies enormously. Size, age, activity level, health, and the type of food you choose all play a role — and so does how much of that food your individual dog actually needs to eat each day.
A small dog eating a calorie-dense dry food can be remarkably cheap to feed. A large or giant breed on a premium, fresh or specialist diet is a different matter entirely.
But here's the thing: the most expensive food isn't automatically the best choice, and the cheapest bag on the shelf isn't necessarily the cheapest way to feed your dog. The price on the front of the bag tells you surprisingly little about the true cost of feeding.
To make a genuinely informed decision, you need to look at nutrition, feeding quantities, calorie content — and the actual cost per day.
What Does Dog Food Cost Per Month in the UK?
The figures below are broad illustrations of the range you might expect to pay, depending on the type of food and your dog's size. They're not recommended spending levels — just a starting point for understanding the landscape.
| Diet type | Approximate monthly cost | What to bear in mind |
|---|---|---|
| Economy dry food | £15–£30 | Lower upfront cost, but check feeding quantities and nutritional suitability carefully |
| Mid-range dry food | £25–£60 | A wide range of complete diets sits at this level — quality and ingredients vary considerably |
| Premium dry food | £40–£90+ | Compare feeding quantities and daily cost rather than bag price alone |
| Complete wet food | £60–£180+ | Wet food contains substantially more moisture than dry food and can be significantly more expensive to feed as a sole diet |
| Fresh, gently cooked and raw diets | Varies considerably | Feeding quantities, formulations and costs differ significantly across these diet types — daily cost can be substantially higher than dry food |
| Veterinary diets | Varies considerably | Specialist diets command a premium — always follow veterinary guidance on suitability |
These ranges shift dramatically depending on your dog's size. A small dog eating a calorie-dense kibble could sit well below the lower end of these figures. A large breed eating at the top of any category could exceed them.
More Expensive Doesn't Mean Better
It's one of the most persistent myths in pet nutrition — that a higher price tag equals a higher quality food.
It doesn't work that way.
A more expensive food may well be formulated differently, use different ingredients, or be produced to a higher standard. But price alone tells you nothing about whether a food is actually suitable for your dog. A food that's nutritionally inappropriate for your dog is poor value at any price.
When you're comparing foods, ask yourself:
- Is it a complete food, if you intend to use it as your dog's main diet?
- Is it appropriate for your dog's age and life stage?
- Does it meet your dog's individual nutritional requirements?
- How many calories does it provide per 100g?
- How much does your dog actually need to eat each day?
- Does it suit any specific health or dietary requirements?
- What does it cost per day — not per bag?
The right food is the one that provides appropriate nutrition for your individual dog at a price you can sustain consistently.
Why Cost Per Day Matters More Than the Price of the Bag
This is the single most useful habit you can develop when comparing dog foods.
A £60 bag looks more expensive than a £40 bag. But if the £60 bag lasts twice as long, it's actually the cheaper food to feed. Here's a simple example:
Food A: £40 bag lasting 30 days = £1.33 per day
Food B: £60 bag lasting 60 days = £1.00 per day
Food B costs £20 more at the till. But over a month, it costs £10 less to feed. Judging by bag price alone gives you completely the wrong picture.
The calculation is straightforward:
Bag price ÷ number of days the bag lasts = daily food cost
Multiply that figure by 30 and you have a useful estimate of your monthly food cost.
A Realistic Example
Take a medium-sized adult dog eating 180g of dry food per day. You buy a 12kg bag for £60.
12,000g ÷ 180g = approximately 66 days of food
£60 ÷ 66 = approximately 91p per day
91p × 30 = approximately £27 per month
The bag costs £60 at the checkout. The actual feeding cost is around £27 a month. That context matters — and it changes entirely if your dog eats more, eats less, or if the food has a different feeding recommendation.
Don't Overlook Calorie Density
Price per kilogram is another commonly used comparison — and another one that can mislead you.
Two dry foods might have the same price per kilogram but very different calorie contents. If Food B is more calorie-dense, your dog needs less of it each day to meet their energy requirements. A higher price per kilogram doesn't necessarily mean a higher daily cost.
The most useful chain of reasoning is:
Price → feeding quantity → calories → cost per day
That sequence gives you a far more accurate picture than price per kilogram alone.
Size, Life Stage and Activity Level All Affect the Bill
A Chihuahua and a Great Dane don't share a food budget — that much is obvious. But even two dogs of a similar size can have very different requirements depending on their age, activity level, body condition, metabolism, health status and whether they've been neutered.
Feeding guides are a useful starting point, not a fixed prescription. Monitor your dog's body condition and weight regularly. If they're gaining or losing unexpectedly, speak to your vet about their diet and energy requirements.
Life stage matters too. Puppies need food specifically formulated to support growth and development — feeding an adult food to a growing puppy isn't just a nutritional compromise, it can affect their long-term health. Senior dogs, working dogs and highly active breeds all have different requirements that will influence your monthly food spend.
Complete vs Complementary: Get This Right Before You Compare Prices
Before you compare any two products on price, check whether they're both complete foods.
A complete pet food is formulated to provide everything your dog needs nutritionally when fed as directed for the appropriate life stage. A complementary pet food is not — it's designed to be fed alongside another food, used as a topper, treat or part of a mixed feeding routine.
This matters enormously for budgeting. A complementary food that looks inexpensive may require you to purchase a separate complete food alongside it — which changes the cost picture considerably.
Treats, Chews and Toppers: The Hidden Cost
Your dog's food budget doesn't stop at their main meals.
Training treats, dental chews, food toppers and other extras can add a surprising amount to your monthly outgoings — and they contribute calories too. If your dog receives a meaningful number of treats throughout the day, those calories should factor into how you think about their overall diet.
You don't need to stop giving treats. But keeping a rough track of what you're spending on them — and what they're contributing calorically — gives you a much more accurate picture of what feeding your dog actually costs.
Delivery Costs and Promotions
If you buy online, factor in delivery before you compare prices. A cheaper bag with a postage charge added may not represent better value than a slightly pricier bag with free delivery.
Equally, free-delivery thresholds, subscription discounts and multi-buy offers can all reduce your real-terms cost. Look at what you'll actually pay at checkout — not just the advertised price of the food.
When Health Requirements Change the Equation
Some dogs need a specialist diet because of allergies, intolerances, digestive conditions or other veterinary requirements. Veterinary and prescription diets can cost substantially more than standard foods.
If your dog has a diagnosed health condition, cost is a real consideration — but it shouldn't be the overriding one. Switching a dog away from a diet that's been recommended for a medical reason to save money is rarely a worthwhile trade-off. Your vet is best placed to advise on what's appropriate.
5 Practical Ways to Reduce Your Dog-Food Bill
1. Calculate cost per day, not cost per bag
Work out your dog's daily feeding quantity, then divide the bag price by the number of days it lasts. A more expensive bag that lasts longer often works out cheaper.
2. Consider larger pack sizes
If your dog eats the same food consistently, a larger bag can offer a lower cost per kilogram. Just make sure you can store it properly and that it'll be used within the recommended period once opened.
3. Resist unnecessary food switching
Chasing special offers and swapping foods regularly isn't always the best approach — particularly for dogs with sensitive stomachs. If a food is working well, switching to save a few pounds may not be the straightforward saving it appears.
4. Keep tabs on treat spending
A few treats a day adds up. Keeping a rough monthly tally of what you spend on treats and extras can reveal costs that aren't immediately obvious.
5. Compare the full picture
When evaluating any food, look at: price per kilogram, recommended feeding quantity, calorie density, cost per day, pack sizes available, delivery costs, and whether it's complete or complementary. The cheapest-looking product is rarely the cheapest to feed.
So — How Much Should You Actually Spend?
There's no universal figure. For some small dogs, a suitable complete dry food may cost around £20–£30 a month. For a large breed on a premium, fresh or specialist diet, the same budget won't stretch far.
Rather than working from a fixed spending target, work backwards from your dog's needs. A sensible dog-food budget balances three things:
- Appropriate nutrition — a food that's complete, suitable for your dog's life stage and meets their individual requirements.
- Realistic daily cost — calculated from feeding quantity, not bag price.
- Affordability — a food you can buy consistently, month after month, without it becoming a financial strain.
Frequently Asked Questions
How much does it cost to feed a dog per month in the UK?
It varies widely depending on your dog's size, the type of food, the feeding quantity and individual requirements. A small dog eating dry food may cost considerably less per month than a large dog eating wet or raw food.
Is expensive dog food better than cheaper dog food?
Not automatically. Price doesn't determine nutritional suitability. A food is only good value if it's appropriate for your dog, complete for their life stage, and affordable enough to feed consistently.
How do I calculate my dog's daily food cost?
Divide the bag price by the number of days it lasts: bag price ÷ days = daily cost. Multiply by 30 for a useful monthly estimate.
What is the cheapest way to feed a dog?
The cheapest suitable option isn't necessarily the food with the lowest price per kilogram. Compare the food's feeding recommendation, calorie density and cost per day, while making sure it is complete and appropriate for your dog.
How much should I budget for dog food and treats?
Your total feeding budget should include both main meals and extras. Treats, chews and toppers can add considerably to your monthly spend — and they contribute calories that should be considered alongside main meals. Tracking both gives you a much more accurate picture of what you're actually spending.
Is wet dog food more expensive than dry food?
Generally yes, particularly when fed as a sole diet. Wet foods contain substantially more moisture than dry food, so dogs need to consume more volume to meet their energy needs. Compare daily feeding costs rather than price per kilogram.
Should I buy the largest bag available?
Not automatically — but larger bags often offer a better cost per kilogram. The key questions are: can you store it correctly, and will your dog get through it before it deteriorates?
Should I include treats in my dog-food budget?
Yes — if you want an accurate picture of what feeding your dog actually costs. Treats, chews and toppers can add considerably to your monthly spend, and they contribute calories that should be considered alongside main meals.
The Bottom Line
Feeding your dog well doesn't mean buying the most expensive food on the shelf. It means finding a food that's nutritionally appropriate for your dog, suited to their individual needs, and affordable enough for you to feed without compromise.
Don't judge a food by the price on the bag. Look at what your dog needs to eat each day, what that actually costs, and whether the food is complete and suitable for their life stage.
At Kimi's Pet Emporium, we're always happy to help you compare the options — not just by price, but by feeding quantity and daily cost, so you can make a genuinely informed decision. Browse our full range of dry dog food, wet dog food and raw and fresh diets — or get in touch if you'd like a hand working out which food represents the best value for your dog.
Because when it comes to dog food, the cheapest isn't always the best value — and the most expensive isn't automatically the best choice.