Data & Methodology
Last updated 2026-06-29. This page explains exactly where our numbers come from and how the calculators work �?so you can judge how much to trust each figure.
Where the values come from
We don't copy a single site's numbers. Crop, pet, and mutation data is cross-checked across the sources below and reconciled by hand when they disagree:
- Mutation multipliers �?gagdata.com (All Mutations)
- Crop & pet values �?gagdata.com / growagarden-values.wiki (cross-checked)
- Open-source calculator (reference) �?CC BY-SA 4.0 (content) / MIT (code)
- Stock API (self-hostable) �?MIT
How the calculators compute value
A crop's sell value is built up in this order: base value × growth mutation (Gold ×20 or Rainbow ×50, mutually exclusive) × environmental mutations (added together, not multiplied) × (weight / base weight)². Getting the mutation stacking right matters: many sites multiply every mutation together, which inflates values by orders of magnitude. We add environmental mutations, which matches the in-game result.
Pet weight tiers
Weight tiers are based on a pet's weight at Age 1 (hatch): Huge 5, Titanic 7, Godly 9–9.99, Colossal 10+. Try it on the Pet Weight Calculator.
Limits of these estimates
Data combines in-game values with community-aggregated estimates. It's a strong guide, not guaranteed �?game updates and markets shift. GAG Tools is fan-made and not affiliated with Roblox or the developers of Grow a Garden.
FAQ
How often is the data updated?
We aim to review and update values within 48 hours of every in-game event or update. The 'last updated' date at the top of this page reflects the most recent data pass.
Are these values exact?
Confirmed in-game values are used where available; the rest are community-aggregated estimates, cross-checked across several sources. Grow a Garden is a live game, so treat every number as a strong guide rather than a guaranteed figure.
How is a crop's value calculated?
Value starts from a crop's base value, then applies the growth mutation (Gold ×20 or Rainbow ×50, whichever applies), adds environmental mutations, and scales by the square of weight over base weight. The calculators do this automatically.
How are pet weight tiers decided?
Weight tiers are set by a pet's weight at Age 1 (hatch): Huge 5, Titanic 7, Godly 9-9.99, Colossal 10+. These thresholds are cross-checked across the community list and other calculators.
Found a value that looks off? Tell us and we'll check it against the game. More about who runs this site on our About page.