Choose a scale and a setup she will tolerate
A digital kitchen scale is the right tool for a small kitten because it resolves the tiny gains that matter at her size, where a bathroom scale's rounding can hide a week of growth or invent one. Put a shallow bowl, small box or tray on the scale, line it with a cloth that smells of her bedding so it feels like a resting place rather than equipment, and zero the scale with the container in place if it has that function. Let her sniff and step in voluntarily where possible, and keep the whole event under a minute. A kitten weighed calmly in a familiar-smelling box will sit still enough for an accurate reading, while one grabbed and balanced on a bare scale gives you a number that measures her struggling instead of her growth.
Timing and technique that make figures comparable
Comparability is the entire value of home weighing, so fix the variables you can. Weigh at the same time of day, preferably before a feed, because a kitten's weight moves noticeably across a day of meals and litter tray visits. Weigh on the same day each week for routine tracking, and more often, even daily for a spell, if she is very young, orphaned, weaning, or recovering from illness and you have been asked to watch her closely. Write each figure down on the spot with its date; memory quietly rewrites numbers toward what you expected, and a written sequence cannot. If a reading looks wildly out of line with the trend, weigh her again before worrying, since a foot off the scale or a shifted container explains most sudden leaps and drops.
When she outgrows the bowl
As she grows stronger and less containable, switch to the subtraction method: weigh her in a carrier or sturdy box she will sit in, then weigh the same container empty and subtract. Use the identical container every time, and note the method change in your record so nobody later compares figures gathered two different ways without realising it. An alternative for a cooperative older kitten is to weigh yourself holding her and then without her on a bathroom scale, accepting the coarser precision in exchange for a weekly figure you will actually collect. A slightly rough weight taken every week beats a precise one abandoned because the process became a battle.
Read the record, not the single number
Home weights earn their keep when you read them as a line. Steady weekly gains with a bright, eating, playing kitten need no action beyond continuing. A single flat reading after a day of poor appetite may mean little; two flat readings, any clear loss, or a flat line paired with dullness, loose stools or reduced play is a pattern worth a call to the veterinarian, and kittens young enough to be weighed in a kitchen bowl should not be watched at home through several weeks of no growth. Take the record with you to appointments, because your dated home figures between clinic weights often show the shape of a problem, or of a recovery, that two clinic snapshots cannot.
Keep home and clinic weights in one place
A sequence split between a notebook, phone notes and the clinic's printouts will eventually be read as fragments and lose its meaning. Keep your home weigh-ins with the rest of her health record, in the order they were taken, with feeding changes noted beside them. KinsLe Pet Passport keeps those records together in one portable packet, so your kitchen-scale figures and her official weights form a single, continuous growth story wherever she is seen.