Plan pet training with the Grow A Garden Pet XP Calculator. Built for Roblox players, this tool estimates how long it takes a pet to reach a target age from its current age. It uses your selected XP sources and boosts to generate a practical, game‑ready timeline.

The calculator supports several ways to gain XP: up to eight owls with per‑owl XP/s inputs, optional mouse catches that award XP on an interval, starfish ticks that add steady XP every second, and any custom XP rate you want to include. You can also apply a percentage bonus to represent temporary events or server buffs.

Enter your pet's current age and goal, add your owls, toggle mice or starfish, and adjust the extra fields. Results update instantly with total XP per second, XP still required, and a readable time estimate in seconds and hours. It’s ideal for scheduling overnight growth or planning efficient leveling routes.