Teacup Treasures — A size and care reference | teacup-treasures.com
Month by month: half the adult weight is on the scale by month 4-5, growth closes at 8-12 months, and the teacup band tops out at 4-5 lb (1.8-2.3 kg).
The growth of a toy puppy is front-loaded. Most weight gain happens in the first 4-5 months of life, so the reading at that point — roughly half of the adult weight — doubles into a working estimate of the final figure.
From month 6 the curve flattens. Toy puppies finish growing at 8-12 months; giant breeds, for contrast, need 18-24 months. A toy puppy still gaining fast at month 10 is the exception, not the rule.
On narrow screens, swipe or scroll the plate sideways.
Where the final number lands decides the label. Sellers reserve 'teacup' for adults under 4-5 lb (1.8-2.3 kg), with other published ranges running 2-5 lb (0.9-2.3 kg); the AKC registers no such class, so the label describes a scale reading, not a pedigree.
Three misreads ruin most estimates: trusting the seller's promised ceiling, panicking at the normal plateau after month 8, and skipping weigh-ins during the 4-5 month surge when the estimate is most sensitive.
Cross-check the estimate against the breed bands in the chart at /teacup-dog-weight-chart, and keep the puppy fueled on the way up with the 4-6 hour gap rule at /teacup-puppy-feeding-schedule.
Further reading