Select a pet to calculate.
Pet ability calculator
Grow a Garden Pet Calculator for weight, age, and ability stats.
Use this fan-made calculator to compare your pet's current ability with its projected high-age stats. It turns cooldowns, chances, hatch boosts and value bonuses into plain player-friendly numbers.
Data source: public formulas
Updated: May 24, 2026
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kg
1. Choose your pet
2. Add current weight and age
3. Select mutation and buffs
4. Read the plain-English result below
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Projection appears here.
Enter age and weight for a projection.
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| Pet | Numbers | Ability summary | Action |
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Player guide
How to Use the Grow a Garden Pet Calculator
Use the Grow a Garden Pet Calculator to check a pet's current ability, compare it with a higher-age projection, and decide whether the pet is worth leveling, mutating, or trading.
1. Enter your pet
Search the pet name, then add its current weight and age. The calculator uses those numbers to estimate how the pet scales.
2. Add mutation and buffs
Choose the mutation and any toy or sprinkler buffs that apply. This changes the result instantly.
3. Read the result cards
Current ability shows the pet now. Projected ability shows what it may become at the selected target age.
4. Use it before trades
Rarity is not everything. A pet with a useful cooldown, hatch boost, value bonus, or XP effect may be more valuable for your setup.
How to read the numbers
- Ability cooldown: lower is better.
- Hatch time reduction: higher is better.
- Success chance: higher is better.
- Value multiplier or XP gain: higher is better.
Quick notes
Some stats can hit a limit. For example, a cooldown may stop improving while hatch reduction keeps rising. If the game updates, treat numbers as estimates until they are checked again.
What this calculator is for
This page helps players answer one practical question: if this pet gets heavier, older, mutated, or buffed, how does its ability change?
How to read the cards
Each card shows the current number first, then the projected number. Lower cooldowns are usually better; higher chances, XP, value multipliers and hatch reductions are usually better.
Data notice
This is an independent fan project and is not affiliated with Roblox or Grow a Garden. Numbers are estimates and can drift when the game updates.