Puppy feeding and growth
How often should I reweigh my puppy to adjust its food?
Last updated 23 September 2026 · How we write and check this
Short answer
Weighing weekly during the fastest growth months, roughly up to 6 months, and every two to four weeks after that as growth slows, gives enough information to keep food amounts reasonably accurate without becoming a chore.
Why more frequent checks matter early on
In the first few months, a puppy's weight can change enough in a single week to meaningfully shift the right food amount, so weekly weigh ins during this fast growth window catch those changes before the puppy has been under or overfed for very long.
Spacing out checks as growth slows
Once a puppy is past its fastest growth phase, typically after 6 months, weight tends to change more gradually week to week, so checking every two to four weeks is usually frequent enough to keep the food amount reasonably accurate without needing a weekly routine.
Making weighing easy and consistent
A small puppy can be weighed on a bathroom scale by weighing yourself holding the puppy and then subtracting your own weight; a larger puppy may need a vet clinic's scale or a pet specific scale, ideally weighed at roughly the same time of day and before a meal for consistency.
Key takeaways
- Weekly weigh ins suit the fastest growth months, roughly up to 6 months.
- Every two to four weeks is usually enough once growth has slowed after 6 months.
- Small puppies can be weighed at home using a bathroom scale and subtraction.
- Weigh at a consistent time of day, ideally before a meal, for the most reliable trend.