What does this calculator actually calculate?

Two things: what a mutation does to a specific pet, and how two pets compare on base speed and base income. Both answers come from multiplying values in the site database, so the arithmetic is exact and the inputs carry the grade of the underlying table.

Why does it only offer the three mutations?

Because only three multipliers could be corroborated. Sources report five mutations in total. A calculator that invents a multiplier for the other two would produce a confident wrong answer, which is worse than an obviously incomplete one.

Does it account for pet level or age?

No. Level and age affect a pet in game, and no source has published the curve that describes how. Rather than model a progression we cannot see, the tool shows base values and mutation multipliers only, and states that limit on the page.

Why is speed shown in the same units the game uses?

So that a printed value can be matched against what you see in game without mental conversion. The game uses K, M, B, T and Qa suffixes, and keeping the display in those units means a discrepancy is obvious rather than hidden behind a normalised scale.

Pet and Mutation Calculator

Your pet

Mutation applied

Compare against

Effective speed

Base 15 with no mutation

Effective income

Base 3% with no mutation

Snail against Kitsune

Speed difference: +6666666567%
Income difference: +2999999900%

Differences are calculated with the same mutation applied to both, so the comparison is about the pets rather than about the multiplier.

What each mutation does to Snail

Effect of each confirmed mutation on the selected pet
Mutation	Speed	Income	Gain over base
None	15	3%	baseline
Shocked 2x	30	6%	+100%
Volted 3x	45	9%	+200%
Rage 4x	60	12%	+300%

This is the whole argument for putting a good mutation on a fast pet. The multiplier does not care which pet it lands on, so the absolute gain is always larger where the base is larger.

Everything here is calculated from the base stats on the pet database, which are graded single source. The arithmetic is exact; the inputs are the part to treat as provisional. Only the confirmed mutations appear, because a multiplier we could not corroborate would make this tool confidently wrong rather than merely incomplete.

What this tool is for, and what it is not

This game has two stats that matter and one multiplier that scales both of them, which makes it a good candidate for a calculator and a bad candidate for an elaborate one. The tool below does the arithmetic you would otherwise do by hand while deciding where to spend a mutation: what does this multiplier turn this pet into, and how does that compare with the pet I already have.

What it deliberately does not do is model progression. There is no level curve, no age scaling and no estimate of income per hour, because none of those has been published by anyone and a plausible-looking curve would be the most convincing kind of wrong. Everything shown here is a base value multiplied by a confirmed multiplier, and nothing else is inferred.

Why a multiplier always pays more on the faster pet

This is the single most useful thing the tool demonstrates, and it takes about ten seconds to see. Pick any pet, then read the mutation table underneath it. The percentage gain is identical for every pet, because a multiplier does not know what it landed on. The absolute gain is not identical, and the difference between those two sentences is the whole upgrade strategy of this game.

Put another way: a doubling on a slow pet produces a slightly faster slow pet. The same doubling on the fastest pet you own can change which spawn tiers you are able to reach at all, and reach is what converts into eggs per hour. That is why the correct moment to start caring about mutations is after your speed is respectable, not before.

Reading the two comparison numbers

The comparison panel applies the same mutation to both pets before subtracting, so the result is a statement about the pets rather than about the multiplier. A large positive speed difference means the first pet unlocks biomes the second cannot reach. A large positive income difference means it pays for radar tiers and nest upgrades sooner.

The two rarely point the same direction, and that is the honest answer rather than a limitation of the tool. The fastest base speed and the highest base income in this roster belong to different pets, so any comparison that shows one pet winning both is telling you something about which two pets you selected, not about the game.

Limits you should know before you rely on this

The pet stat table is graded S3 Multi-source. The arithmetic below is exact, but the numbers it starts from come from one source and have not been read off a gameplay frame.
Mutation multipliers are graded S4 Single source. The ordering is solid and the exact figures are provisional.
2 further mutations are reported to exist and have no corroborated multiplier. They are absent from the dropdown on purpose.

Source: All Things How stat table, transcribed by ride-apet.wiki pet list for pet stats, checked 2026-09-15. Raise a correction through the contact page if you have a frame that shows otherwise.

Common questions

What does this calculator actually calculate?: Two things: what a mutation does to a specific pet, and how two pets compare on base speed and base income. Both answers come from multiplying values in the site database, so the arithmetic is exact and the inputs carry the grade of the underlying table.
Why does it only offer the three mutations?: Because only three multipliers could be corroborated. Sources report five mutations in total. A calculator that invents a multiplier for the other two would produce a confident wrong answer, which is worse than an obviously incomplete one.
Does it account for pet level or age?: No. Level and age affect a pet in game, and no source has published the curve that describes how. Rather than model a progression we cannot see, the tool shows base values and mutation multipliers only, and states that limit on the page.
Why is speed shown in the same units the game uses?: So that a printed value can be matched against what you see in game without mental conversion. The game uses K, M, B, T and Qa suffixes, and keeping the display in those units means a discrepancy is obvious rather than hidden behind a normalised scale.