Adult Dog Daily Feeding Calculator
Estimate daily calories and food portions to help maintain your adult dog’s current healthy weight.
Tell us about your dog
Choose a concern for illness, poor appetite, recovery, prescribed diets, or unexpected weight or muscle change.
Choose healthy body condition only if your veterinary team has confirmed it at a recent assessment.
What does healthy body condition mean?
An ideal body condition means your dog is neither too thin nor carrying excess body fat. Body condition looks at body fat, not just the number on the scale.
For this calculator, healthy body condition means a Body Condition Score (BCS) of 4–5 out of 9, confirmed by your veterinary team. Choose “Not sure” if this has not been confirmed.
Use a measured weight, not a goal weight.
Are you sure? This weight is above 200 lb (about 90.7 kg). Please confirm the weight and units.
Use “Typical adult pet” for routine pet activity. Choose “Less active / tends to gain weight” or “Light work” only when your veterinary team considers it appropriate.
Your estimate updates when the required entries are complete.
Your daily calorie estimate
For maintaining current weight, not for weight loss.
Save or print your estimate
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The printed summary includes the method and disclaimer. This calculator does not save entries between visits.
When to use a different feeding plan
For healthy, fully grown adult dogs at an ideal body condition, BCS 4–5/9, confirmed by their veterinary team. Use current weight, not a goal weight. This tool is not for growth, pregnancy, nursing, illness, recovery, or unplanned weight change.
For a dog above or below ideal condition, ask your veterinary team for an individual feeding plan. Start with the dog weight loss guide when weight loss may be appropriate. The Step-Based Weight Loss Planner is a separate veterinary tool.
The body-condition selection does not diagnose body condition. Choose healthy body condition only when your veterinary team has confirmed it at a recent assessment.
How the estimate is calculated
RER = 70 × current body weight in kg0.75
Daily maintenance estimate = RER × the selected reference factor.
RER means resting energy requirement. The maintenance estimate is also called MER or, in this adult-maintenance context, DER. It includes routine activity. Do not add a walking-calorie estimate on top.
| Reference category | Factor used |
|---|---|
| Typical adult, spayed/neutered | 1.4–1.6 × RER |
| Typical adult, intact | 1.6–1.8 × RER |
| Sedentary / prone to weight gain | 1.0–1.2 × RER |
| Light work | 1.6–2.0 × RER |
These are starting reference factors, not minimum or maximum safe intakes. Inactive and work categories use their own factors without adding another spay/neuter adjustment. The calculation does not apply a separate age, breed, or outdoor-access bonus.
The displayed range comes from the factor range, not a fixed percentage around the result. It is not a confidence interval or a guarantee that your dog's needs fall within it. A single-factor result is still approximate.
Daily calories are rounded to the nearest whole calorie. Treat allowances are rounded down to whole calories so they cannot exceed the selected percentage of the displayed total. Main-food calories are the remainder. Per-meal values are approximate divisions of those main-food calories.
AAHA 2021, Box 1: Energy Requirement Calculations supplies the RER equation and the maintenance factors listed here. The original label “inactive/obese prone” is presented as “sedentary / prone to weight gain.” The categories are not added together.
AAHA guidance for healthy pets at an appropriate weight supports reviewing current intake, nutritional adequacy, and the contribution of treats and extras. Ohio State's nutrition service explains why individual calorie needs can differ substantially from calculated estimates.
Important limitations
This calculator provides general maintenance-energy estimates for apparently healthy, fully grown adult dogs at an ideal body condition confirmed by their veterinary team. It does not determine ideal weight, diagnose obesity, create a weight-loss or weight-gain plan, or assess whether a diet meets nutrient needs.
Your dog's actual needs may fall outside the estimate. A veterinary team can set a different calorie intake, treat allowance, and recheck schedule using current intake, weight trend, body condition, muscle condition, age, activity, and health.
Follow your dog's prescribed feeding plan. Do not reduce food, skip meals, add exercise calories, or change that plan based on this result alone. A displayed number does not confirm that an intake is appropriate or safe. If your dog is maintaining an ideal condition on a different intake, do not change it just to match the calculator.