PupCurve

PupCurve offers free browser calculators for puppy weight, puppy growth, dog weight, dog size and dog pregnancy, with no sign-up needed. It estimates adult weight as a range that tightens as you add weigh-ins, using anonymised veterinary weight records. A free account tracks one puppy, Pro adds the growth tracker and PDFs, and a one-time Litter Pass supports breeders.