About gagdata.com

The Grow a Garden Calculator built by players, for players

GAG Calculator was built to solve one problem: Grow a Garden values change every Saturday, and every existing resource takes days to catch up. We built a calculator that updates within 12 hours of each patch — with every number verified in-game before it goes live.

The site covers 303 crops, 145 mutations, and 314 pets across eight free calculator tools — no account needed, no ads blocking the tools.

In-Game Verified

Every crop value, mutation multiplier, and pet stat is tested directly inside Grow a Garden — never sourced from community estimates or wikis.

Patch-Day Fast

After each Saturday patch, updated values are live within 12 hours. We aim to be the first accurate source after every game update.

Always Free

Every calculator on gagdata.com is free, with no account required, no paywalls, and no ads blocking the tools.

Mobile-First

Built for Roblox players who check values on a second device while playing. The calculators load above the fold on every phone and tablet.

Who runs GAG Calculator

GAG Calculator is built and maintained by Alex Greenfield, a Roblox data analyst with over 1,500 hours in Grow a Garden. Alex tests every crop value, mutation multiplier, and pet stat directly in-game before it appears on the site — and updates verified data within 12 hours of every Saturday patch.

If you find a discrepancy between a value on this site and the current in-game value, use the contact form — confirmed corrections are applied the same day.

How our data is verified

Load the game after each Saturday patch

Within an hour of the weekly patch going live, we open Grow a Garden and check the patch notes against what has changed in the game.

Re-test every affected crop, mutation, and pet

For each changed entry, we harvest crops without mutations to confirm base values, apply single mutations to verify multipliers, and feed pets incrementally to confirm weight thresholds.

Update the JSON data files

Verified new values are written to crops.json, mutations.json, and pets.json. The site rebuilds automatically from these files — no manual HTML editing.

Publish with a date-stamped update log

Every Saturday update is recorded in the Recent Changes section on the homepage and in the weekly update page — so you always know what changed and when.

Site history

GAG Calculator launched in 2025 to fill the data gap left by community wikis and has tracked Grow a Garden values through every weekly patch since early access.

Get in touch

Found a wrong value? Have a suggestion? We read every message and respond within 24 hours.