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Dog Food Portion

Convert a dog's daily calories into grams of dry food per day and per meal.

About Dog Food Portion

A dog's daily calorie target divided by the energy density of its food gives how many grams to feed. Splitting that across meals fixes the portion for each serving. Different foods have wildly different calorie densities, so a portion is only correct when tied to the actual kilocalories per gram of the specific product.

Formula

Dog Food Portion

Daily grams = daily kcal / (kcal per 100 g) x 100; per meal = daily grams / meals

kcal per 100 g
energy density printed on the food bag

Worked example

With the default values below, Dog Food Portion returns Food Per Day of 257. Change any input above and every figure here is recalculated in your browser.

Inputs used

Daily calorie targetminimum 1 kcal/day
900 kcal/day
Food energyminimum 1 kcal/100g
350 kcal/100g
Meals per dayminimum 1
2

Results

Food Per Day
257 g
Per Meal
129 g
Cups Per Day
2.14 cups

Step by step

  1. 1Values used
  2. 2Dog Food Portion
  3. 3Food Per Day= 257 g
  4. 4Per Meal= 129 g
  5. 5Cups Per Day= 2.14 cups

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is Dog Food Portion calculated?

Daily grams = daily kcal / (kcal per 100 g) x 100; per meal = daily grams / meals A dog's daily calorie target divided by the energy density of its food gives how many grams to feed. Splitting that across meals fixes the portion for each serving.

Why does Dog Food Portion matter?

Different foods have wildly different calorie densities, so a portion is only correct when tied to the actual kilocalories per gram of the specific product.

What values do I need to enter?

This calculator takes 3 inputs: Daily calorie target, Food energy, Meals per day. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

Dog Food Portion – Calculate Food Per Day & Per Meal