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Grow a Garden Pet Calculator

Predict your pet's growth journey from hatch to adult with 100% accuracy.

kg
Day
Growth Timeline (1-100)Day 4
4
1100

Pet Weight
Rarity Guide

In Grow a Garden, weight isn't just a number—it defines your pet's rarity and trading value. Pets are categorized based on their **Adult Weight (Day 100)**.

Tiny Puppy
Under 50kg
Giant Pet
50kg - 150kg
Godly Beast
150kg - 300kg
Mythical Legend
Over 300kg

The 10x Rule

The growth mechanic in Grow a Garden follows a strict linear path. A pet will reach exactly 10x its hatch weight by Day 100.

The Formula
Hatch Weight × 10
Identify high-potential pets
Verify "Godly" claims in trades

Frequently Asked Questions

Simply enter your pet's current weight and its current age (between 1 and 100 days). Our tool uses the official linear growth formula to reverse-calculate the hatch weight and project the final adult weight at day 100.
The Hatch Weight is your pet's weight at Day 1. It is the most important stat because it determines the pet's entire growth trajectory. In Grow a Garden trading, pets with higher hatch weights are significantly more valuable.
Growth is perfectly linear. Every pet reaches exactly 10x its hatch weight by Day 100. For example, a pet that hatches at 50kg will always be 500kg when it reaches the Adult stage.
While the community-defined tiers can shift, the general standard is: Tiny Puppy (<50kg Adult), Giant Pet (50kg-150kg Adult), Godly (150kg-300kg Adult), and Mythical Beast (>300kg Adult).
Yes, pets unlock their maximal abilities and full power once they reach the Adult stage (Day 100). Using a calculator helps you see if your pet is worth the time and resources to age up.

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Disclaimer: There are no official item values in Grow a Garden. All calculations are community-sourced estimates. This tool is not affiliated with the developers of Grow a Garden or Roblox Corporation.