Pet XP Calculator
Enter your pet’s age and the age you want, add your helper pets and treats, and get the exact XP and time needed.
Values last checked: (Grow a Garden 1 data)
How to use it
- Enter the current age and the target age.
- Choose the pet and add Owls, Capybara, treats and mutation bonuses.
- Read the total XP and the time — keep the pet fed the whole time.
How much XP each age needs
Going from age n to n + 1 costs floor(20 × n^2.02) XP. Early ages are quick, but the cost climbs steeply:
| From → to | Total XP | At 0.52 XP/s (default) |
|---|---|---|
| Age 1 → 10 | 5,918 | 3h 9m 41s |
| Age 1 → 25 | 103,766 | 2d 7h 25m |
| Age 1 → 50 | 868,305 | 19d 7h 50m |
| Age 50 → 75 | 2,116,456 | 47d 2h 35m |
| Age 50 → 100 | 6,283,809 | 139d 20h 44m |
| Age 1 → 100 | 7,152,114 | 159d 4h 34m |
Levels 50 to 100 cost about seven times as much XP as levels 1 to 50, which is why helper pets matter so much in the late game.
XP rates and helper pets
| Source | XP per second | Notes |
|---|---|---|
| Any fed pet (default) | 0.52 | Only while the hunger bar is filled. |
| Grey Mouse | 1.35 | Slightly faster than default. |
| Brown Mouse | 2.08 | Good early-game XP pet. |
| Starfish | 6.82 | Levels itself, no feeding needed. |
| Capybara (helper) | +3 | Applies to every pet in the garden. |
| Owl / Night Owl / Blood Owl | +0.25 each | Several Owls stack. |
| Small / Medium treat | +2.2 / +4.4 | While the treat is active. |
| Shiny / Inverted mutation | +15% / +30% | Multiplies the pet’s total XP rate. |
Community-reported rates. Keep the hunger bar filled — XP stops when a pet is hungry.
Frequently asked questions
How much XP does a pet need to reach age 50?
Going from age 1 to age 50 takes 868,305 XP. Age 1 to 100 takes 7,152,114 XP, because each age costs floor(20 × age^2.02) XP.
What is the fastest way to level a pet?
Keep it fed, place a Capybara (+3 XP/s) and several Owls (+0.25 XP/s each), use treats, and prefer Inverted (+30%) or Shiny (+15%) pets.
Does a pet gain XP when it is hungry?
No. XP only builds while the hunger bar has food in it. The Starfish is the exception — it levels on its own.