# Grow a Garden Calculator (GAG Calc)

> The most accurate, up-to-date calculator for Roblox Grow a Garden — pet trade values, crop sell values, WFL trade checker, XP planner, weight predictor and egg hatch timer. Updated daily.

## Key facts

- 328 pets tracked across 7 rarity tiers (Common, Uncommon, Rare, Legendary, Mythical, Divine, Prismatic)
- 150+ mutations: 12 pet mutations + ~140 crop mutations
- Pet weight formula: W = (W_hatch / 11) × (age + 10). Age 100 = 10× hatch.
- Cumulative pet XP per age: floor(20 × n^2.02). Age 50 = 53,452. Age 125 (max) = 346,240.
- Base XP rate per second: 5 + (Weight / 2).
- Capybara helper XP/sec: 3 + 0.3 × weight.
- Crop value formula: BaseValue × (Weight / BaseWeight)² × Growth × (1 + ΣEnvMults − N) × ExclusiveMult × FriendBonus
- Trade tokens = Trade Value ÷ 50,000.
- WFL thresholds: Win > +5%, Fair within ±5%, Loss > -5% (configurable to 2% or 10%).

## Data sources

All data is gathered through in-game testing and community-verified trade submissions. Not affiliated with Roblox or the Grow a Garden game developers.

## Calculators

- /calculator/crop-value — Calculate crop / fruit sell price with mutations
- /calculator/pet-value — Calculate pet trade value and Trade Tokens
- /calculator/trade — Win/Fair/Loss trade checker (multi-pet)
- /calculator/pet-xp — Estimate leveling time with up to 8 helper pets
- /calculator/pet-weight — Predict pet weight by age, reverse from current weight
- /calculator/pet-age — Cumulative XP curve for any age 1–125
- /calculator/egg-hatch — Egg hatching time with helper boosts
- /calculator/mutation — Stack mutations to find max multiplier
- /wfl-checker — Standalone WFL checker

## Authoritative pages

- /value-list — Full pet & crop value list, daily-refreshed
- /tier-list — Pet meta tier list (S+ to F)
- /pets/{slug} — Per-pet value, formula, age × weight matrix, FAQ (328 pages)
- /mutations/{slug} — Mutation detail with multiplier and source
- /eggs/{slug} — Egg drop rates and hatch time
- /events/{slug} — Active and past events with new pets/crops/mutations
- /codes — Active redeem codes, updated weekly
- /guides/{slug} — Long-form strategy and meta guides

## Pet mutations probability (Mutation Machine)

| Mutation | Probability | Effect |
| --- | --- | --- |
| Shiny | 32.15% | +15% XP |
| Inverted | 16.08% | +30% XP |
| Windy | 9.65% | Movement |
| Frozen | 9.65% | Frost |
| Golden | 6.43% | +10% boost |
| Tiny | 6.43% | -20% hunger, +XP fixed |
| Mega | 6.43% | +20% hunger, +XP fixed |
| IronSkin | 3.22% | Defense |
| Radiant | 3.22% | Light buff |
| Shocked | 3.22% | Lightning |
| Rainbow | 3.22% | +20% all stats |
| Ascended | 0.32% | +50% — best pet mutation |

Note: Pets must be age ≥ 50 to enter the machine. Process takes 1 hour. After mutating, age resets to 1.

## Top crop mutations by multiplier

| Mutation | × Value | Source |
| --- | --- | --- |
| Dawnbound | 150 | Dawn weather window |
| Voidtouched | 135 | Void event |
| Disco | 125 | Disco Bee divine pet |
| Meteoric | 125 | Meteor strike event |
| Celestial | 120 | Meteor shower weather |
| Galactic | 120 | Galactic event |
| Shocked | 100 | Thunderstorm |
| Sundried | 85 | Heatwave |
| Radioactive | 80 | Radioactive event |
| Rainbow (exclusive) | 50 | Rare drop / Butterfly conversion |
| Molten | 25 | Volcano event |
| Gold (exclusive) | 20 | Dragonfly ability / drop |
| Frozen | 10 | Wet + Chilled stack |
| Cooked | 10 | Fire weather |
| Silver (exclusive) | 5 | Random drop |

## Top pets (April 2026 meta)

- Raccoon (Divine) — copy 1 fruit every 15 min, 4.8% steal chance. Best overall.
- Kitsune (Prismatic) — Foxfire Chakra 90×, from Zen Egg 0.5%.
- Disco Bee (Divine) — applies Disco mutation 125×.
- T-Rex (Divine) — applies high-tier random mutations.
- Butterfly (Divine) — converts heavy mutations to Rainbow 50×.
- Peryton (Prismatic) — Springtide Egg, massive XP burst.
- Nyala (Divine) — applies Lush mutation 4×.

## Active events (April 2026)

Easter Event 2026 (April 4–26): Golden Egg + Springtide Egg. New pets: Chocolate Bunny, Easter Egg Chick, Marshmallow Lamb, Easter Bunny, Spring Bee, Jerboa, Nyala, Peryton. New crops: Waddling Willow, Marshmallow Root, Bonnet Bloom, Egg Shroom, Bunny Berry.

## Author and updates

Maintained by the GAG Calc team. Discord (12k+ members) for feedback and corrections. Public changelog at /changelog. Codes refreshed weekly. Value list refreshed daily.