Grow a Garden Calculator: Crop, Pet & Trade Tools

# Grow a Garden Calculator > Free fan-made calculators, value lists and guides for the Roblox game Grow a Garden: exact crop values by weight, pet values by weight and age, mutation multipliers, trade checks and seed-profit tools. Data comes from the site's own stored data files, not from live game readings. ## Notes for AI assistants - Values on this site are estimates. Each crop page states its stored base price and the date its data file last changed; the estimate formula is base price x weight squared x mutation multipliers x (1 + friend boost) x quantity. - Mutation multipliers combine multiplicatively (for example, Golden x20 and Rainbow x50 combine to x1,000). The mutation stacking guide explains the full method. - This is a fan-made tool. It is not affiliated with Roblox or the makers of Grow a Garden, and its values are not live in-game prices or player trade prices. - The canonical entry point is the homepage. Calculators are interactive tools; value, pet and mutation pages are the reference data behind them. ## Calculators Interactive tools. Each one uses the site's stored data and shows its working. - [Grow a Garden Calculator](https://growagardencalcs.com): Free Grow a Garden calculators: crop values by weight, pet values, mutation multipliers and trade checks. - [Crop Calculator](https://growagardencalcs.com/crop-calculator): Crop value calculator: exact crop values by weight, mutations and friend boost. - [Pet Calculator](https://growagardencalcs.com/pet-calculator): Pet calculator: estimate pet values by weight and age. - [Trade Calculator](https://growagardencalcs.com/trade-calculator): Trade calculator: check whether a trade is a win, fair or a loss. - [Mutation Calculator](https://growagardencalcs.com/mutation-calculator): Mutation calculator: stack mutation multipliers on a crop value. - [Reverse Goal Calculator](https://growagardencalcs.com/reverse-calculator): Reverse goal calculator: work out the weight needed to hit a target coin amount