This page documents the exact formulas and data policies behind the ggardencalc.com calculators.
Grow a Garden (GAG1) formula
Value = Base × (Weight ÷ Base Weight)² × Growth × (1 + Σ Env − Count of Env) × (1 + Friend% ÷ 100) × Quantity
The weight factor is floored at 1×. Growth multipliers: None 1, Silver 5, Gold 20, Rainbow 50.
Worked example (GAG1)
A crop with a base value of 1,000, Gold growth (20×) and the Shocked mutation (100×): 1,000 × 20 × 100 = 2,000,000.
Note on environmental brackets: the Shocked + Celestial bracket applies a total of 219×, not 12,000× — mutation multipliers are not simply multiplied together.
Grow a Garden 2 (GAG2) formula
Value = Base × (Weight ÷ Base Weight)^2.65 × Mutation × Decay × (1 + 0.10 × friends, max 7) × Quantity × Daily Deal (2.2 if on)
Only a single mutation applies in GAG2. The decay factor of 0.20× is flagged as a community estimate, because one competitor’s text conflicts with it.
The single-harvest keep fraction is not invented by us and is labeled unverified.
Pet hatch weight
Wh = (11 × base weight) ÷ (age + 10)
Data policy
No unverified crop table is used in v1: base value and weight are entered manually. Pet XP is held back because competitor sources conflict by about 9×. Live stock is not shown because no verified live source exists.
Any data changes will be dated in the Changelog.