Calc Den

Unofficial fan tools

Roblox game calculators

Quick answers to “how much is this worth?”. Each tool shows its formula and where the numbers come from.

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Income calculator

Pet $/s from weight and mutation, weight for a target income, and your pen total.

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Pet list by income

All 265 pets with rarity, biome and base weight.

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Speed calculator

Speed per step from treadmill, trail and multiplier, steps to each biome and the best next upgrade.

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Treadmills & trails

Every treadmill and trail with prices, plus Robux speed multipliers.

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Mutations

Rainbow, Golden, Silver and the rest, with odds and the size bonus.

More games are on the way. Data is checked against each game's wiki; every page shows the date it was last checked.