🥫 Wet & Dry Food Mix Calculator
Here's the trap with mixed feeding: every label assumes it's your cat's only food — so a full can plus a full scoop roughly doubles the calories. This calculator starts from one daily calorie target and splits it between your wet and dry foods, so the two halves add up to exactly one cat.
1 · Daily calorie target
Standard AAHA life-stage factors applied to resting energy (RER). Anything outside healthy adults — see the blue note above.
From your vet, or from our Calorie & Feeding Calculator — run it there, then bring the number back here. If you used that calculator on this device, your cat's weight is already filled in.
2 · The mix
50/50 is the most popular split; leaning wetter (around ⅔) is the usual pick when hydration or weight is the concern.
Capped at 10% — the AAHA guideline that treats stay at or under a tenth of the day's calories. The food below is worked out on what's left.
3 · Your wet food (off the label)
Typical wet food: 70–100 kcal/100 g.
Common sizes: 85 g (3 oz) pouch, 156 g (5.5 oz) can.
4 · Your dry food (off the bag — either number works, both is best)
Printed on most bags. Gives you the cup amounts.
Also printed as kcal/100 g × 10. Gives you exact grams — and grams never assume a “standard” cup.
5 · Routine (and optional prices)
Your daily mix
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Rounded the way you'd actually serve it — grams to the nearest gram, cups to the nearest ⅛, cans to the nearest ¼ — with the exact figure alongside. Nobody can serve 0.37 of a cup, and pretending otherwise is how portions drift.
💧 Water
Compare another mix
Drag Mix B to a different split and see both side by side — same cat, same target, different balance.
| Mix A | Mix B | |
|---|---|---|
| Wet food / day | – | – |
| Dry food / day | – | – |
| Calories (wet + dry) | – | – |
📌 Daily Mix Card — stick it on the fridge
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Where next? If your target was a guess, pin it down with the Calorie & Feeding Calculator. And if you're choosing between two foods rather than splitting them, the Cat Food Carb Calculator shows the carb percentage neither label prints.
Why use a mix calculator at all?
One target, split — not two targets, stacked
The classic mixed-feeding mistake is feeding the full wet amount and the full dry amount, because each label quietly assumes it's the whole diet. Splitting one calorie target between the two is the entire fix — and it's arithmetic nobody should have to do at 6 a.m. with a hungry cat supervising.
Honest rounding you can actually serve
Most calculators leave you with 0.37 cups and 1.62 cans. This one rounds to the nearest gram, ⅛ cup and ¼ can — and shows the exact number beside it, so you can see the rounding is a rounding, not a fudge.
A plan the whole household can follow
Portions drift when the plan lives in one person's head. The Daily Mix Card prints the whole day — amounts, meals, treats budget — for the fridge door, so a partner, a teenager or a cat sitter serves the same cat the same way.
How the numbers work
| Step | Formula | Notes |
|---|---|---|
| Resting energy (RER) | 70 × (weight in kg)0.75 | The standard starting point (2021 AAHA Nutrition & Weight Management Guidelines) |
| Daily target | RER × life-stage factor | Neutered adult ×1.2 · intact adult ×1.4 · inactive / gain-prone ×1.0 — or your vet's number, typed straight in |
| Food calories | Target × (1 − treats %) | Treats stay ≤10% of the day (AAHA); the food is budgeted on what remains |
| The split | Wet kcal = food kcal × wet share · Dry kcal = the rest | Wet + dry + treats always add back to the target — the check row proves it |
| Amounts | Cans = wet kcal ÷ kcal per can · Cups = dry kcal ÷ kcal per cup · Grams = kcal ÷ (kcal/kg ÷ 1000) | Grams come from your label's kcal/kg, never from an assumed cup weight |
| Water | ≈ 50 ml per kg per day, total | Wet food's moisture counts toward it — which is why wetter mixes mean a quieter water bowl |
Switching to mixed feeding? Change the split gradually over 7–10 days, shifting a little more of the day's calories to the new balance every couple of days, and weigh monthly — the trend outranks any formula, including this one.
Questions people ask
What split is best — 50/50?
50/50 is the most common starting point, not a rule. More wet food brings more water with it (useful for cats who barely drink, and often easier for portion control since wet food is less calorie-dense). More dry food is cheaper and more convenient. Any split is fine nutritionally as long as both foods are complete diets and the calories add up to one target — which is what this page is for.
Should wet and dry go in the same bowl?
Either works. Same bowl is fine for most cats and makes meals simple; separate bowls help in multi-cat homes (you can see who ate what) and suit cats who graze the dry portion slowly — wet food shouldn't sit out for hours, so a slow grazer does better with the wet served as its own finished meal.
Why weigh dry food instead of using cups?
A “cup” of kibble varies with the scoop, the kibble shape and how it settles — easily ±25%. The grams figure here comes straight from your bag's kcal/kg, so it doesn't depend on anyone's scooping style. If you do use cups, the ⅛-cup rounding keeps you close; a kitchen scale keeps you exact.
Can I use this for a kitten or a weight-loss plan?
Yes — but with a target from your vet, not from the estimate mode. Pick “I know the target”, type in the number they gave you, and the split, rounding and per-meal maths all work exactly the same. Growing and slimming cats need their target set and reviewed by someone who can see the cat.
My two foods have different units on their labels. Help?
That's the normal case, and it's handled: the wet side accepts kcal per can/pouch or per 100 g, and the dry side accepts kcal per cup, per kg, or both. Use whichever each label actually prints — never convert via a generic “average food” table if your real labels are in the cupboard.
This calculator gives general feeding guidance for healthy adult cats, built on the standard AAHA energy formulas — it is not veterinary advice and doesn't replace your vet's knowledge of your individual cat. Kittens, pregnant or nursing cats, and cats with a health condition or a weight-loss plan need feeding targets set with a veterinarian. Sudden appetite or weight change is always worth a vet visit.