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How much to feed a 18 lb cat
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406 kcal/day
Neutered adult cat, 18 lb (8.2 kg) · ≈ 1.07 cups dry or 4.3 cans wet
Daily food for a 18 lb cat
| Life stage | Calories | Dry (380 kcal/cup) | Wet (3 oz, 95 kcal) |
|---|---|---|---|
| Neutered adult | 406 kcal | 1.07 cups | 4.3 cans |
| Intact adult | 473 kcal | 1.25 cups | 5.0 cans |
| Weight loss (at target weight) | 270 kcal | 0.71 cups | 2.8 cans |
| Kitten (4–12 months) | 845 kcal | 2.22 cups | 8.9 cans |
| Senior, inactive | 372 kcal | 0.98 cups | 3.9 cans |
Split into 2–3 meals. Mixing wet and dry? Halve each amount. Treats should stay under 10% of calories.
FAQ
How much should a 18 lb cat eat?
A neutered adult 18 lb cat needs about 406 kcal a day – roughly 1.07 cups of a 380 kcal/cup dry food or 4.3 3-oz cans of wet food (≈95 kcal each).
How was this calculated?
Resting energy requirement = 70 × kg^0.75 = 338 kcal for 8.2 kg, multiplied by a life-stage factor. Always check the calorie figure on your food’s label and ask your vet, especially for overweight cats.
Other weights
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