Pet Weight Calculator

Use the Grow a Garden Pet Weight Calculator to calculate pet weight by age, find hatch weight and max weight, and check size classifications like Huge, Titanic, Godly, and Colossal.

Pet Weight Calculator — FAQ (Roblox Grow a Garden)

Short answers to how the calculator works, how weights are derived, and how to read the result.

Pet abilities are passive or active effects that change how you play and progress. Depending on the pet, abilities can:

  • Apply mutations to crops or speed up their growth.
  • Increase seed drop and treasure find chances.
  • Grow bigger, rarer, and more valuable crops.
  • Boost player stats like speed, jump height, or backpack size.
  • Mimic or refresh other pets’ abilities.
  • Duplicate harvests or trigger bonus rewards.
  • And many more.

These effects remain active while the pet is equipped in an active pet slot.

mutation adds a special effect on top of a pet’s base ability. You can get one by:

  • Using the Mutation Machine once a pet reaches age 50+ — this version resets the pet’s age to 1.
  • Using Pet Shards — this applies a mutation without resetting the pet’s age.

Mutation Machine results are randomized, and only one mutation can be active per pet at a time.

Select a pet, then enter its Weight and Age. The result panel shows computed values like hatch/max weight, size classification, and resolved ability/mutation text.

Double-check your pet’s age, weight, mutation, and any boosts you have active. Small differences can come from rounding, temporary buffs, or recent game updates. Refresh the page — if it’s still off, report it so we can review and update the data.

Send a short description and a screenshot of the in-game text on our Discord. Include the pet, mutation, weight/age, and what seems incorrect or missing.