Tool
Trade calculator
Put what you give on the left and what you are offered on the right, then choose how to compare: money made, rarity, or both with the mix you want.
You give
You get
Add pets on both sides
The scale tips toward the side that makes the most money per second.

What does the scale use?
Your call. Money made: the pets' real income (base income × mutation × size bonus). Rarity: the pets' tier, availability, age and mutation (details just below). Both: we look at who wins on money and who wins on rarity, then average them; the slider lets you give more weight to one or the other. There is no official trade value yet and trading is not out: when it arrives, player demand will count too. Fair = less than 10% difference.
How rarity is compared
Every pet gets a rarity score. As a reference: 1 = a Common pet, and a Divine you can still get is worth 512, as rare as 512 Commons. So a score of 1,024 means “as rare as 2 Divines”, like a limited Divine. Weight does not count here. This is not an official value, just a simple public rule.
1. Tier
Each tier counts double the previous one.
- Common1
- Uncommon2
- Rare4
- Epic8
- Legendary16
- Mythic32
- Cosmic64
- Secret128
- Eternal256
- Divine512
Monsters have no official tier: they take the tier of the pets that make as much as they do.
2. Availability
The tier score is multiplied: the harder a pet is to get today, the more it counts.
- Availablex1
- Available on rotationx1.25
- Available in the shopx1.25
- Limitedx2
- No longer availablex3
3. Age
For a limited or no-longer-available pet: +10% per week since its release, up to +50%.
4. Mutation
- Rainbowx4
- Parasitex3
- Fracturedx3
- Scrambledx3
- Goldenx2
- Spirit Bloomx3
- Bloomx3
- Silverx1.5

Never give first
“Give first, I will pay you back” is the most common scam in Roblox games. Scams to know.