Toybox Values

How size changes income

Income = base income × mutation multiplier × size multiplier. Twice the base weight means ×1.53 income.
Data checked: Oct 15, 2026

The size multiplier depends on how many times heavier a pet is than its base weight: ratio^(5/3) below base, ratio^(37/60) up to 125×, then ratio^(2/5) × 125^(13/60).

Size multiplier by weight

Weight vs baseMultiplierGiant SlothGiant Sloth + Rainbow
0.5××0.31$1.26M/s$4.41M/s
0.75××0.62$2.48M/s$8.67M/s
1××1$4M/s$14M/s
1.5××1.28$5.14M/s$18M/s
2××1.53$6.13M/s$21.5M/s
3××1.97$7.88M/s$27.6M/s
5××2.7$10.8M/s$37.8M/s
10××4.14$16.5M/s$57.9M/s
25××7.28$29.1M/s$102M/s
50××11.16$44.6M/s$156M/s
125××19.64$78.6M/s$275M/s
250××25.91$104M/s$363M/s
500××34.19$137M/s$479M/s
1000××45.12$180M/s$632M/s
5000××85.89$344M/s$1.2B/s

Example pet Giant Sloth has a base income of $4M/s.

What doubling the weight adds

Weight changeIncome gain
1× → 2××1.53
10× → 20××1.53
100× → 200××1.38
500× → 1000××1.32

Below 125×, each doubling of weight multiplies income by about 1.53; above it, by 1.32. Getting 10× income from size alone takes about 42× the base weight.

Questions

Does double the weight mean double the income?

No. At 2× base weight the size multiplier is ×1.53. Doubling income takes about 3.1× the base weight.

Why does 125× matter?

Past 125× the base weight the formula switches to a flatter curve. At 125× the multiplier is ×19.64; after that, doubling the weight only adds about 1.32× more.

How do I find my pet's base weight?

The game doesn't show it, but the community wiki lists a base weight in kg for every pet. Pick the pet in the calculator and its base weight fills in; you only enter the weight shown in game.

What if a pet is lighter than its base weight?

Then the formula switches to ratio^(5/3), so income falls fast. Half the base weight gives a size multiplier of ×0.31.

Try a weight ratio in the calculator · Rainbow vs Golden

The formula was worked out by the community and may change with game updates.

Source: Module:IncomeCalculator/Data (rev 2021, Sep 30, 2026), Mutations (rev 1822, Sep 20, 2026), Pets and Eggs (rev 2161, Oct 14, 2026), MediaWiki:Common.js (rev 1790, Sep 20, 2026) · Steal An Egg community wiki, CC BY-SA 3.0. Numbers restructured into tables.