STEAL AN EGG / PLAYER TOOLS
Steal An Egg Calculator
Estimate a pet's online income from its weight and mutations, or use an income rate you already know to plan earnings and saving time.
Source-based estimates. The pet model uses a September 13, 2026 snapshot of StealAnEgg-Wiki.com. It is not an official calculator, a live Roblox connection, or an independently game-tested payout guarantee.
Pet income from weight and mutations
80 reference records available for estimates. Explore all 135 catalog records →
Loading pet reference data… Manual-income mode is available.
Use a rate you already know
Weight, mutations and bonuses are not applied again. Money accepts 1000, 1,000, 1.5M or 1e6.
Assumes this rate stays constant for the entered period.
Income planner
Rate source: no model applied yet.
Apply a pet estimate above, or select manual-income mode.
Online estimate only. Not an offline reward, trading price or guaranteed wallet balance. Cash payback excludes unknown movement and capacity benefits.
Pet income from weight and mutations
Choose an included pet, enter the weight of the pet—not its egg—and select the mutations shown on that individual. Bonus switches describe the scenario you select; this site cannot detect your passes or server effects.
The initial selector includes 80 reference records. Additional records remain outside this release while their identity, income, or configuration status is reviewed. This is not a list of everything currently obtainable in the game.
Already know your effective online income? Choose Use my displayed income. That mode does not apply weight, mutation, or bonus multipliers again.
Plan your income
A rate copied from the pet model represents one pet only, not your whole base. For a base-wide plan, enter the effective total for your active setup instead.
Choose a session length to estimate income, or enter your current cash and target to estimate saving time. These projections assume no purchases, other rewards, income losses, or collection limits during the specified interval. Money generated is not necessarily money already collected into your wallet.
When a temporary boost is active, enter its actual remaining time before using a session forecast. The calculator does not assume a standard 10-minute or 15-minute timer. After the modeled temporary effect ends, the pass, server factor, pet and mutations are assumed unchanged.
For a manually entered rate that will change, supply both rates and the time until the change. An unknown future rate produces an incomplete forecast rather than an invented finish time.
Understand the model and data
The species base income and reference weight come from the A-source pet catalog. The source labels its pet and mutation parameters v490; its formula page records a September 4 check. Our snapshot date is not proof that these values match every current server.
The source's weight model converts weight to an internal scale:
scale = cube_root(pet_weight_kg / species_reference_weight_kg)
size_factor = scale^1.85 when scale <= 5
size_factor = 19.637875755794113 * (scale / 5)^1.2 when scale > 5The mutation model adds each distinct mutation's bonus above 1:
mutation_factor = 1 + sum(max(0, each_unique_multiplier - 1))For example, the source's Golden 2.5 and Rainbow 3.5 values combine to 5, not 8.75. Selecting a combination does not prove that the combination can currently be obtained.
Following the source's stated calculation order, the calculator rounds after the base, size, mutation and Money Pass factors, applies a minimum of 1, and rounds again after server and temporary factors. Our implementation rounds positive half-integers upward. That tie rule has not been independently verified against the game.
Displayed weight can already be rounded, and a source value can be outdated or wrong. Inspect the calculation breakdown and compare with your actual pet rather than treating extra decimal places as evidence of accuracy.
Cash payback is an income comparison
Cash payback compares the purchase cost with the increase in effective income. Moving from 100 to 150 per second adds 50, not 150. At a hypothetical cost of 12,000, that increase needs 240 seconds to recover the cost if it lasts throughout the period.
A capacity or movement improvement does not automatically receive a cash-income multiplier. No positive income increase means no positive cash payback. Prices in Robux, Boss Tokens, or trading items are not converted into game cash here.
THE SHORT ANSWERS
Good questions.
Why can the estimate differ from my game?
Possible explanations include rounded weight, a different bonus state, a source-data error, a changed game version, or a mismatch between the displayed rate and the quantity being compared. The calculator does not automatically decide which explanation applies.
Why is my pet missing?
Some source records are held out of the initial selector. Use a known displayed income in manual mode instead. A missing selector entry does not mean the pet is absent from the game.
Can I enter an egg's weight?
No. The pet model expects that individual pet's weight and the species reference weight. Egg weight and hatch time are not income multipliers.
Does a higher rarity add another income multiplier?
Not in this model. Rarity is a catalog label; the selected species already supplies its base income. Adding a rarity multiplier would count an unsupported factor.
Are hourly estimates offline rewards or trade values?
No. An hourly figure is a projection at the stated online rate, subject to its duration assumptions. This tool does not provide an offline-reward formula or player-to-player trading prices.
Why is the time to my goal zero?
Your entered cash already covers the target. When it does not, a positive saving rate is required. Unknown future rates do not produce a guaranteed completion time.
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