When you’re hand-rearing orphaned kittens, you don’t get many early warning signs. Weight is the big one. A neonate that isn’t gaining is very often a neonate in trouble, and the scale will tell you a day before lethargy or a skipped feeding does. Here’s how to make weight your early-warning system.

Weigh every kitten, every day, at the same time

Use a digital kitchen scale that reads in grams; ounces are too coarse at this size. Weigh once a day at a consistent time, ideally before the same feeding each day so a full or empty belly isn’t skewing the number. Zero the scale with the towel or bowl already on it, and record the number before you do anything else.

What normal looks like

• Birth weight is usually around 90 to 110 grams.
• Daily gain of roughly 10 to 15 grams is the target, steady, day over day.
• Kittens should roughly double their birth weight by about two weeks.
• A small dip in the first 24 hours can be normal; after that, the trend should point up.

The numbers that mean “act now”

Flat weight for a day, or any weight loss after the first 24 hours, is a red flag, not a wait-and-see. So is a kitten who gains far slower than littermates. These are the moments to warm, hydrate, check latch and feeding technique, and call your vet. In neonates, hours matter; a kitten’s reserves are measured in a few missed feedings, not days.

The hard part: everyone’s sharing the feedings

A weight chart only works if it’s one chart. When feedings are split across a household or a team, the scale readings scatter into three notebooks and a phone, and the trend, the whole point, disappears. Whoever picks up the 3 a.m. shift needs to see the last number and the last feeding at a glance.

That’s exactly why Purralytics logs neonate weights and feedings across every caregiver on one shared record. Everyone’s looking at the same line, so the dip that matters is impossible to miss. Start tracking free.

This is general guidance for caregivers, not veterinary advice. When a kitten is failing to thrive, contact your veterinarian.