This page covers pet value, XP, and egg odds only. Open the Grow a Garden Weight Calculator →
Grow a Garden Pet Calculator: Pet Value, Egg Hatch & Pet XP 2026
A Mythical Wisp with a Goldsparkle mutation can look valuable in a trade, but without checking the multiplier math, it’s easy to guess wrong. A single missed mutation can change the result by a large margin.
The Grow a Garden Pet Calculator shows an estimated value with a full multiplier breakdown. It also includes pet XP planning for three action types and egg hatch odds for six egg types. It needs no login, download, or payment, and the Pet Value tab updates as you change the inputs.
Try it first: choose a pet, select its mutation and form, and check the value breakdown before making a trade.
Pets in Grow a Garden
Pets in Grow a Garden are companions that give passive bonuses while equipped. Some raise crop mutation chances, some speed up egg hatching, and some share XP with every other pet in the garden. Several pets can run at once, and their effects stack depending on the trait type. That makes the loadout one of the biggest decisions in any session.
Pet age runs from 1 to 100 and rises as XP is earned, which the XP tab also calls level. Age, rarity, form, and mutation together decide what a pet is worth in a trade. Full entries for every pet sit in the Grow a Garden Wiki. Everything on this page applies to the original game only.
Grow a Garden Pet Calculator Tools Explained
Three tools share this page, and each answers a different question: what a pet is worth, how long leveling will take, and what an egg batch is likely to return. None of the three depends on the others, so any one can be used alone.
Pet Value Tool
The Pet Value tab starts with a card grid. A search box and rarity filters narrow it to one pet, and every multiplier step then appears in the breakdown: base value, rarity, weight, age, form, mutation, growth, and friend bonus. The sidebar ends with a final Sheckle figure that updates with every input. That number works as a floor price during a negotiation, not as a fixed price.
Pet XP Tool
The Pet XP tab takes a current level, current XP, and a target level. A source menu offers three actions, and a boost percentage raises the XP of every action before the count is figured.
Feed: 25 XPTrain: 75 XPRare Train: 150 XP
Results show the XP still needed, the actions required, and a progress bar toward the target. A level table for levels 1 to 20 sits below the inputs for multi-level planning.
A worked example shows the effect. Assume a pet needs 5,000 more XP and a 20 percent boost is active.
30 XP per action, 167 actions
90 XP per action, 56 actions
180 XP per action, 28 actions
The 5,000 figure is a sample, not a game constant.
Plan the next session: enter a pet’s level in the XP tab above and compare all three sources side by side.
Egg Hatch Tool
The Egg Hatch tab covers six egg types.
BasicCommonRareLegendaryMythicalDivine
Luck boost raises the Legendary-and-above rates first, then the full set of odds is normalized, which means rescaled so the total still equals 100 percent. Mutation luck gets a separate field because the game runs it through a different calculation than rarity luck, and merging the two gives wrong batch results.
Output includes per-egg odds for every rarity tier, expected batch totals from Legendary through Prismatic, and a mutation chance line shown on its own.
Pet Value Formula and Input Breakdown
Every result in the Grow a Garden Pet Calculator comes from one chain of multiplications. Each input scales the pet’s base figure, in the order shown here:
| Input | What it controls | Where to go deeper |
|---|---|---|
| Base and rarity | Starting figure for the pet, scaled by its tier | Rarity tier section below |
| Weight and age | Scale the result as the pet grows | Set with the steppers on the card |
| Form | Normal ×1, Tiny ×0.5, Mega ×2, Shiny ×1.5 | Set with the form picker on the card |
| Mutation and growth | Mutation applies from level 50, and one growth type can be added | Multiplier tables in the Grow a Garden Mutation Calculator |
| Friend + boost | Final bonus from friend count and boost percentage | Set with the friend count and boost inputs |
Because each step multiplies instead of adds, effects compound. A Mega form (×2) with a Goldsparkle mutation (×6) gives ×12, not ×8. The most common input mistake follows from this: a Goldsparkle pet entered with no mutation shows only one-sixth of its real result.
Crop prices follow a different formula, which the Grow a Garden Fruit Calculator covers.
Pet Rarity Tiers From Common to Prismatic
Seven rarity tiers separate the starter pets from the endgame ones: Common, Uncommon, Rare, Legendary, Mythical, Divine, and Prismatic. The calculator applies one multiplier range per tier, and the rarity step is only one link in the formula above. The ranges are based on community-known values. Complete pet lists with abilities are kept in the pet database on the wiki.
| Tier | Multiplier range | Sample pets |
|---|---|---|
| Common | ×1.02 to ×1.10 | Snail ×1.02, Duck ×1.10 |
| Uncommon | ×1.12 to ×1.25 | Cat ×1.12, Cow ×1.25 |
| Rare | ×1.35 to ×1.60 | Fox ×1.35, Bear ×1.60 |
| Legendary | ×2.0 to ×2.6 | Banana Bear ×2.0, Unicorn ×2.6 |
| Mythical | ×3.0 to ×4.5 | Phoenix ×3.0, Wisp ×4.5 |
| Divine | ×5.5 to ×6.0 | Galactic ×5.5, Celestial ×6.0 |
| Prismatic | ×8.5 to ×9.0 | Cosmic Wisp ×8.5, Prismatic Dragon ×9.0 |
Common and Uncommon Pets
Across both tiers the rarity step moves only from ×1.02 to ×1.25, a spread of about 23 percent. Little separates a Snail from a Cow on rarity alone. At this stage, a pet’s mutation and form usually decide its worth instead.
Rare and Legendary Pets
Rare pets start at ×1.35, and the best Legendary pet, Unicorn at ×2.6, sits about 63 percent above the best Rare pet, Bear at ×1.60. The lowest Legendary multiplier, ×2.0, still clears the top Rare by 25 percent. That jump is the first one large enough to change a trade conversation.
Mythical, Divine, and Prismatic Pets
The best Mythical pet, Wisp at ×4.5, trails the lowest Divine pet, Galactic at ×5.5, by about 22 percent. Prismatic is the widest leap: Cosmic Wisp at ×8.5 sits roughly 42 percent above Celestial at ×6.0, the top Divine pet. Before swapping any pet from these three tiers, a full run through the calculator confirms that both sides of the offer line up.
Best Pets for XP and Egg Hatching
Some pets earn their slot by feeding XP to the rest of the garden, and others by cutting hatch timers. The table converts each tracked effect into an hourly figure so loadouts can be compared on numbers. Both groups connect directly to the XP and egg hatch tools above.
| Pet | Effect | Trigger | Expected per hour |
|---|---|---|---|
| Blood Owl | 0.50 XP per second to every other active pet | Constant | 1,800 XP per pet |
| Night Owl | 0.20 XP per second to every other active pet | Constant | 720 XP per pet |
| Blood Kiwi | Cuts the longest hatch timer by 45 seconds and adds 20% hatch speed | Every minute | Up to 45 minutes of timer removed |
| Kiwi | Cuts the longest hatch timer by 25 seconds | Every minute | Up to 25 minutes of timer removed |
| Rooster | Adds 20% hatch speed to all eggs | Passive | 20% faster hatching |
Best XP Grinding Pets
One Blood Owl plus two Night Owls adds 0.90 XP per second to every other active pet, which is 3,240 XP per pet each hour. Every other pet in the garden benefits at once, so the gain grows with the size of the lineup. Manual Feed and Train actions then only need to cover whatever gap remains.
Best Egg Hatching Pets
Blood Kiwi, Kiwi, and Rooster are the three hatch-speed pets in the tool. Blood Kiwi gives the biggest timer cut, and Rooster is the only one that speeds every egg passively.
Pet Calculator Screenshots From Each Tab
Previews of the Pet Calculator tabs. Tap any image to view it at full size.
Pro Tips for Faster Leveling and Swaps
These habits come from the formula and the XP math behind the calculator, not from rare pets or extra grinding. Each one uses numbers already visible on a pet card or in the tool. They matter most in the minutes before a session starts or a swap is accepted.
XP Boost Before Every Plan
A boost raises the XP of every action, so the action count falls in proportion. Take Train and a 3,000 XP gap: with no boost the pet needs 40 actions, and with a 50 percent boost it needs 27. Checking the boost field before each plan costs seconds and removes about a third of the work.
Level 50 as the First Target
Mutation multipliers apply from level 50, so that level works as a natural checkpoint before the long climb to 100. Entering 50 as the target first shows how much of the trip is behind or still ahead. A second run with 100 as the target then covers the rest.
Full Multiplier Stacks Before Any Swap
A higher tier with an empty mutation field can land below a lower tier with the right mutation set, so both pets need full inputs before any comparison.
Once both stacks are filled in, the Grow a Garden Trade Calculator checks whether the full offer is fair. This order keeps a flashy rarity label from hiding a weak stack.
Practical Notes on Using the Tools
Three situations where the calculator helps, and where its limits show.
Live Updates Help Catch a Missed Mutation
The sidebar figure updates as inputs change, so a forgotten mutation shows up straight away: the breakdown panel stays at x1 on the mutation line until a mutation is selected. Check that line before replying to an offer.
Feed Versus Train Comparison
Switching the source menu between Feed, Train, and Rare Train shows how the action count changes for the same XP gap. Feed gives the least XP per action, so it usually needs the most actions.
Hatch Odds Versus Actual Results
Entering luck boost and mutation luck in their separate fields gives expected totals for a batch. Real hatches vary, especially in small batches, so treat the totals as an average, not a promise.
Safety and Privacy of the Tool
Every tab runs in the browser. No Roblox login, password, or download is requested, and the calculators don’t ask for personal details. Saved pets are kept in the browser itself, not in an account. Like most websites, this site may use analytics and advertising cookies; see the Privacy Policy for details.
A real calculator never needs a Roblox password or login cookie. Any site that asks for either one is unsafe, whatever it calls itself. This site is a fan-made project and is not connected to Roblox or the creators of the game.
Grow a Garden Pet Calculator Walkthrough
All three tabs share one page and switch with the buttons at the top of the tool. Each tab keeps its own inputs, so moving between them resets nothing. The three steps below follow the order most sessions take.
Pet Value Tab
In the Pet Value tab, search for the pet or filter by rarity, then click its card. Set age, weight, and friend count with the steppers, then pick a mutation, a growth type, and a form. The sidebar updates with each change, and the Save button stores the result under the pet’s name for later.
Pet XP Tab
In the Pet XP tab, enter current level, current XP, and target level. Choose Feed, Train, or Rare Train, and add the boost percentage. Changing only the source and checking the new result gives a quick comparison between actions.
Egg Hatch Tab
In the Egg Hatch tab, pick an egg type from the card grid, then enter luck boost and egg count. Mutation luck goes in its own field, apart from rarity luck. The per-egg odds and batch totals then appear before any egg is opened.
Pros and Cons of Using This Pet Calculator
Strengths and limits of the calculator are listed plainly below.
Pros
- Live results with full multiplier breakdown
- Three tools combined on one page
- Hourly figures for XP and hatch pets
- Separate mutation luck field for eggs
- Save and CSV export for reference
- Free on every device without login
Cons
- Base data is community-sourced
- New pets may take time to appear
- Saved results vanish when cache clears
- Every input needs manual entry
Frequently Asked Questions
Data Sources, Accuracy, and Updates
Pet multipliers, rarity ranges, form values, and ability timers are based on in-game values and community-known mechanics. None of the figures are official Roblox data, and they may become outdated after game patches, so cross-check important numbers in the game.
New pets and changed values may not appear in the tool right away. A mismatch found in-game can be reported through the Contact Us page.
Conclusion: Building a Stronger Pet Team
Pet decisions in Grow a Garden come down to three numbers: what the pet is worth, how many actions remain to a target level, and the odds attached to an egg batch. Each one is a quick lookup in the calculator.
Mutation stacking, offer checks, crop payouts, and every other pet entry each have their own page on this site. This page is worth bookmarking for the next leveling, hatching, or trading session.
This is a fan-made website. It is not affiliated with, endorsed by, or connected to Roblox or the creators of Grow a Garden.