Ride A Pet Calculator
Ride A Pet runs on three interlocking numbers: hatch odds (1 in N), mutation multipliers (×2 to ×100) and rebirth costs. Pick a mode below and model your own build — everything runs in your browser.
Last verified: · Runs entirely in your browser
Chance of at least one hit
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Expected eggs per hit—
Eggs for 50% odds—
Eggs for 90% odds—
Eggs for 99% odds—
Find the pet you are chasing on the pet database and the matching egg on the egg ladder.
Time to rebirth
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Rebirth cost—
Required pet—
Income with multiplier—
Still needed—
Next radar:
Next food:
Prices on the radars & food page.
How this calculator works
- Hatch Odds — models repeated hatches as independent rolls: chance of at least one hit is
1 − (1 − p)n, wherepis your effective chance after luck. It also reports how many eggs you need for 50%, 90% and 99% confidence. - Mutation Speed — riding speed is simply base speed × mutation multiplier. It also tells you how many documented pets your result outruns.
- Rebirth Timer — time to your target rebirth is
(cost − cash) ÷ (income × money multiplier), plus how far away the next radar and food tier are at that same rate.
Rebirth does not add speed. A rebirth gives a permanent +1x Money Multiplier and +1 Pet Slot — it is an income and capacity upgrade, not a movement one. Speed comes from the pet you ride and its mutation.