Feeding frequency for a kitten is set by 1 organ: the stomach. A newborn stomach holds 4-5 mL, so a 120 g kitten cannot be fed twice a day no matter how much you put in the bowl, and a 700 g kitten at week 8 does not need a 02:00 alarm. The chart below covers 0-8 weeks with 5 numbers per row, and the 3 checks after it are how you confirm the schedule is right for this kitten rather than the average kitten.
Two rules fix the whole schedule
Rule 1: daily volume is about 20-24 mL of formula per 100 g of body weight, which is roughly 1 mL for every 4-5 g of kitten. Rule 2: that daily volume is split into as many feeds as the stomach will take, which is 8-10 in week 1 and 3 by week 8. Everything else in the chart, weights, intervals, per-feed volumes, drops out of those 2 rules. When a kitten is smaller than the chart, follow the weight column, not the week column, because a 90 g singleton at week 2 eats like a week 1 kitten.
The 0-8 week chart
Volumes are per feed of prepared formula at body temperature, about 38 C. Week 4 onward, formula volume falls as solid food rises.
| Week | Feeds per day | Interval | mL per feed | mL per day | Target weight |
|---|---|---|---|---|---|
| 0-1 | 8-10 | 2-2.5 h | 4-5 | 35-45 | 100-180 g |
| 1-2 | 7-8 | 3 h | 6-8 | 45-58 | 180-240 g |
| 2-3 | 6 | 4 h | 10-12 | 60-72 | 240-300 g |
| 3-4 | 5 | 4-5 h | 12-14 | 65-78 | 300-370 g |
| 4-5 | 5 | 5 h | 16-18 | 80-95 | 370-450 g |
| 5-6 | 4-5 | 5-6 h | 20-22 | 85-100 | 450-530 g |
| 6-7 | 4 | 6 h | 24-26 | 90-100 | 530-620 g |
| 7-8 | 3-4 | 6-8 h | 25-28 | 80-95 | 620-700 g |
| 8+ | 3 | 8 h | 20-25 | 60-80 | 700+ g |
Two rows do most of the work in practice. Week 0-1 is the only row with a night feed every 2-2.5 hours, which is 3-4 alarms between 23:00 and 06:00. Week 7-8 is where most people overfeed, because the kitten still asks loudly while its needs have shifted from formula to wet food.
Three numbers that prove it is working
Weight gain. Weigh at the same hour daily on a kitchen scale that reads to 1 g. Expect 10-15 g a day in week 1, 100 g a week from week 2 to week 4, and 90-120 g a week from week 4 to week 8. A kitten that gains less than 7 g a day for 3 days in a row is not getting enough, regardless of how eagerly it feeds.
Output. 4-6 wet diapers or urinations a day and 1-2 soft yellow stools a day in week 1; by week 3 expect 2-3 stools a day and firmer form. No stool for 48 hours in a formula-fed kitten is a call, not a wait.
Belly and behavior. After a feed the belly should feel like a soft half-filled balloon, not tight and shiny. A kitten that drains the bottle in under 2 minutes and screams after is being underfed per feed; one that leaves 30 percent and falls asleep is being overfed per feed. Either way the daily total is the number to adjust, in steps of 10 percent, not the per-feed volume.
Nights: when the alarm stops
Night feeds are needed until the kitten can hold enough volume to sleep 5-6 hours, which in practice is week 3 for a well-grown kitten and week 4 for a small one. Drop the night feed by moving it 30 minutes later every 2 nights rather than cutting it, so the 02:00 feed becomes 03:00, then 04:00, then merges with the 06:00. Do not drop 2 feeds in the same week, and do not drop any night feed while weight gain is under 10 g a day. By week 5 most kittens sleep 7-8 hours without food, which is also the point where you can stop worrying about overnight hypothermia in a warm room.
Weeks 4-8: the weaning ramp
Start gruel between day 28 and day 35, not earlier: offer formula mixed with wet kitten food at 3 parts formula to 1 part food, warmed to 38 C, in a shallow 2 cm dish. Move to 1 to 1 after 4-5 days, then to food with only a splash of formula by day 45. Keep the bottle in the routine until the kitten is eating 30-40 g of wet food per day, usually week 5-6, because a kitten that loses the bottle before it can eat loses weight fast. Free-feed dry food from week 6 only if the kitten holds weight on scheduled meals. Fresh water in a 2 cm deep dish from week 4, refreshed 3 times a day.
Signs the schedule is wrong
Constant crying that stops only when fed, a distended hard abdomen, formula coming back through the nose, or a kitten that goes from eager to refusing the bottle within 2 feeds. Any of those means the per-feed volume is too large or the interval too long, and the fix is smaller feeds more often, not a bigger nipple hole. Diarrhea that lasts more than 24 hours, or stool with blood or mucus, is a vet call rather than a formula adjustment. Never feed a cold kitten: warm it to 37-38 C first, because a chilled kitten cannot digest and formula in the gut makes things worse.
When to call the vet
Call the same day for: no weight gain over 48 hours, weight loss of any amount, 1 episode of vomiting after a feed, labored breathing, a kitten that feels cool to the touch, or a abdomen that stays hard between feeds. Under 4 weeks, a kitten that stops feeding for 6 hours is an emergency, not a wait-and-see, because a newborn has almost no reserves. Bring the weight log with 5 columns, date, weight, feeds, mL taken and stool count, to the appointment.
Set up 4 things tonight
1. Print the chart and circle the row for the kitten's current weight, not its age. 2. Set alarms for the row's interval, including the 3-4 night feeds in week 1. 3. Put a 1 g kitchen scale next to the formula so weighing happens before mixing. 4. Write the daily total, not the per-feed amount, at the top of the sheet. If you are hand-raising a single kitten, the volume math in the orphan feeding math guide takes the same 2 rules further, and the week-by-week milestones tells you what should change at week 3, 5 and 8. Mixed-breed kittens vary by 2-3 weeks in size, so the breed quiz is a rough guide to adult size, never a feeding rule.
Frequently asked
Can I feed a 2-week-old kitten every 4 hours overnight?
Not safely at that weight. At week 2 the stomach holds roughly 6-8 mL, which supports about 3 hours between feeds. Stretching to 4 hours means a larger feed than the stomach can take, and the usual result is formula coming back or a kitten that stops gaining. Drop the night feed gradually from week 3, in 30-minute steps every 2 nights.
How do I know the formula is the right strength?
Mix exactly as the label states for the powder you bought, and do not add extra powder to make it richer. Over-concentrated formula pulls water into the gut and produces diarrhea, which then causes weight loss faster than underfeeding does. Use 1 scoop per stated volume of water, measure water first, and discard anything left after 1 hour at room temperature.
When can a kitten switch to free-fed dry food?
Usually around week 6 to 7, and only after it is eating 30-40 g of wet food a day and gaining steadily on scheduled meals. Free-feeding before that hides how much is actually eaten, which removes the only check you have. Keep 3 scheduled wet meals and leave a measured amount of dry food down between them, then weigh weekly to confirm the change did not slow growth.