Weight of Adult Cat Cups per Day Grams per Day 4 lbs. 2 kg 1-3 33 8 lbs. 4 kg 1-2 – 2-3 50 – 67 12 lbs. 5 kg 2-3 – ¾ 67 – 75 16 lbs. 7 kg ¾ - 1 75 – 100 22 lbs. 10 kg 1 – 1 ¼ 100 -125