Frequently Asked Questions

Grow a Garden Calculator is a free online tool that helps players calculate pet values, trade values, mutations, XP, and egg probabilities in the Grow a Garden (GAG) Roblox game. No login or payment is required.

Yes — all tools on GAG Calculator are completely free. There is no login, no paywall, and no limits. Just open the tool and start calculating.

No. GAG Calculator is an unofficial community tool. It is not affiliated with or endorsed by Roblox Corporation or the Grow a Garden game developers. All values are community estimates.

We continuously monitor in-game changes and update our data to match the current meta. If you notice an outdated value, you can contact us and we will fix it quickly.

We offer: Crop Value Calculator, Pet XP Calculator, Trading Value Calculator, Pet Mutations guide, Pet Value list, and Grow a Garden Eggs database.

The Trading Value Calculator lets you add pets to both sides of a trade and instantly shows the total value of each side. It then tells you if the trade is a Win, Fair, or Loss based on a 2% threshold.

WIN — You receive more value than you offer (the other player overpays).
FAIR — Both sides are within 2% of each other in total value.
LOSS — You offer more value than you receive (you are overpaying).

Yes! You can add as many pets as you want to each side. The calculator sums up all values and shows the final Win/Fair/Loss result. Use the + button to increase quantity of the same pet.

Trading values are community-estimated and based on current market demand and in-game rarity. They are reliable guides, but actual trade prices can vary between players. Always use your own judgment too.

Always check the Trading Value Calculator before accepting any trade. If a trade shows LOSS, the other player is getting a better deal. Never trade based on pressure or urgency — take your time.

Pet value is the estimated trading worth of a pet based on its tier (Common to Divine), mutations, age, weight, and market demand. You can find the full list on our Pet Value page.

Heavier pets generally have higher trading value. The weight classification system goes: Small (<1 kg) → Normal (1–5 kg) → Huge (5–7 kg) → Titanic (8–9 kg) → Godly (≥9 kg). Use our Pet Weight Calculator to project your pet’s weight at any age.

Pet age (1–100) directly determines weight. As a pet ages, its weight increases following the formula W = (Wh ÷ 11) × (A + 10). Higher age means higher weight, which usually means higher trading value.

It depends on the pet type and any XP boosts you have. Use our Pet XP Calculator to get an exact time estimate based on your pet type, support pets, and mutation bonuses.

Pets are organized into 7 tiers: Common → Uncommon → Rare → Legendary → Mythical → Divine → Prismatic. Higher tier means rarer and more valuable. See all tiers on our Pet Value page.

Pet mutations are special bonuses applied to pets through the Pet Mutation machine. Each mutation has a different effect — some boost XP, others apply crop mutations, increase passives, or change pet size. See all 20 mutations on our Pet Mutations page.

Level your pet to 50 or higher, then visit the Pet Mutation machine near the Pet Eggs vendor. Wait 1 hour for a free roll, or pay 50 Robux to skip the timer. Warning: mutation resets your pet age back to 1.

Ascended is the rarest obtainable mutation at only 0.32% chance. It applies the Dawnbound crop mutation every 5–6 hours. Special/Event mutations like Fried, Aromatic, and Corrupted are not available from the standard machine.

No. Each pet can only have one mutation at a time. If you mutate again, the new result replaces the old one — and your pet age resets again. Think carefully before re-rolling a good mutation.

Yes — rare mutations like Ascended, Rainbow, or Inverted can significantly increase a pet’s trading value. When using the Trading Value Calculator, factor in mutations manually as they are not currently in the base value system.

Our Grow a Garden Eggs page has a complete database of all eggs — including costs, hatch times, and pet probabilities for every egg type.

The Dinosaur Egg cannot be bought with Sheckles or Robux. You must trade any pet with Graham at the DNA Station. The process takes 1 hour and gives you 1–4 Dinosaur Eggs depending on the rarity of the pet you trade.

Keep Chicken and Rooster pets near your hatching area — they reduce hatch time by 10% and 20% respectively. You can also hatch up to 3 eggs simultaneously. Premium eggs hatch in 30 seconds instead of hours.

For highest-value pets, Paradise Egg (Mimic Octopus 1%), Oasis Egg (Fennec Fox 0.5%), and Gem Egg (Ruby Squid 0.5%) are top choices. For dinosaur lovers, the Dinosaur Egg contains T-Rex at 0.5%. See full probabilities on our Eggs page.

Enter your current pet age, target age, pet type (Starfish, Grey Mouse, etc.), any support pets (Owl, Capybara), and mutation bonuses. The Pet XP Calculator instantly shows total XP needed, effective XP rate, and time required in days and hours.

Select your crop, enter weight and quantity, choose mutations (Growth, Environmental, Limited), and the Crop Value Calculator applies the formula: Total Value = Base Value × Weight² × Growth Mutation × (1 + Σ Environmental Mutations − Count).

Minor differences can occur due to game updates changing base values, or special in-game bonuses not covered by the standard formula. Our tool uses the latest available data and is accurate for the vast majority of calculations.

Yes! All our tools are fully mobile-responsive. They work smoothly on any phone or tablet browser — no app download needed.

Please email us at support@growagardencalculator.store with details of the issue. We usually respond and fix it within 24–48 hours. You can also visit our Contact page.