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Pet Food Portion

Free Pet Food Portion calculator with clear step-by-step results.

About Pet Food Portion

Splits a daily calorie target between wet and dry food by calories rather than by weight, which is essential because wet food is roughly a quarter the energy density of kibble. Feeding equal weights of both would deliver far fewer calories than intended.

Formulas

Calorie split

Wet kcal = target x wet share; dry kcal = target - wet kcal

Grams required

Grams = kcal / (kcal per 100 g) x 100, for each food

Worked example

With the default values below, Pet Food Portion returns Dry food per day of 97.3. Change any input above and every figure here is recalculated in your browser.

Inputs used

Daily calorie targetminimum 10 kcal
600 kcal
Dry food energy densityminimum 50 kcal/100g
370 kcal/100g
Wet food energy densityminimum 20 kcal/100g
85 kcal/100g
Share of calories from wet foodaccepts 0–100 %
40 %
Meals per dayaccepts 1–6
2

Results

Dry food per day
97.3 g
Wet food per day
282.4 g
Dry food per meal
48.6 g
Wet food per meal
141.2 g

Step by step

  1. 1Values used
  2. 2Calorie split
  3. 3Grams required
  4. 4Dry food per day= 97.3 g
  5. 5Wet food per day= 282.4 g
  6. 6Dry food per meal= 48.6 g
  7. 7Wet food per meal= 141.2 g

Assumptions and limits

  • The result is derived only from the 5 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 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • General guidance only. Calorie targets and diet composition should be set with a veterinarian, especially for pets with kidney, urinary, diabetic or gastrointestinal conditions.

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

General guidance only. Calorie targets and diet composition should be set with a veterinarian, especially for pets with kidney, urinary, diabetic or gastrointestinal conditions.

Frequently Asked Questions

Where do I find the energy density?

On the label as metabolisable energy, usually per 100 g or per can. If only per cup is given, weigh a cup - cup weights vary widely between kibble shapes.

Does mixed feeding cause problems?

Not inherently, provided total calories are controlled and both foods are complete. The common error is feeding a full portion of each rather than splitting the allowance.

Pet Food Portion – Calculate Dry food per day | Calcrivo