Pets
Dog Food Bag Calculator
Find how long a bag of dog food will last from its weight, the bags you have and each dog's daily serving. Add a bag price to estimate monthly food costs.
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Formula and assumptions
Use a full bag or the food you have left. For half of a 3kg bag, enter 3kg per product and 0.5 products remaining. Daily portions are added across dogs. An optional bag price gives monthly consumption cost at the same serving rate.
Why the result can vary
Growth, activity, weight-management changes, switching food, treat share, scoop error, and spills alter the rate stock falls.
Example
Food supply for two dogs
Inputs: 10kg food, first dog 300g/day, second dog 200g/day
Outcome: At 500g total a day, that is about 20 days of food.
Cautions
- This calculator does not prescribe an appropriate portion or weight-management plan.
- Use product guidance and the dog's health needs; consult a veterinarian when changing a feeding plan.
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Frequently asked questions
Can the dogs have different serving sizes?
Yes. Enter daily grams separately for each dog and the calculator uses their sum.
Will it recommend a portion from body weight alone?
No. Calorie density and each dog's needs differ, so it does not invent a serving. Enter an amount from the label or veterinarian.
Can I use this for wet dog food?
The duration formula works when stock and daily use share a mass unit, but opened-product storage limits must be checked separately.
How long does a 3kg bag of dog food last?
A 3kg bag contains 3,000g. For example, it lasts 30 days at an actual serving of 100g per day or 15 days at 200g per day. Add daily servings together when several dogs share the bag.
Can I calculate monthly dog food costs?
Yes. Enter the price of one bag under optional cost settings to see monthly consumption costs. Leave the price blank if you only want days remaining.