Wizard101 Pet Calculator - Return Chance Estimate
Compare two pet bodies by their recorded Wow Factors, then see a clearly labeled community estimate for each return chance.
Choose two pets with known Wow Factors. The lower factor is estimated to be more likely to return; equal factors are estimated at 50/50. The result is not an official game rule.
On this page
- Formula source
- PetBodyW101 Help panel
- Runs locally
- Yes - no account or backend
- Special case
- Exclusive bodies
What this Wizard101 pet calculator estimates
The calculator estimates which of two non-exclusive pet bodies may return from a hatch. It uses the community formula shown in the PetBodyW101 Help panel and the Wow Factor values in this site’s lookup table.
The result is a planning aid. It does not predict talent inheritance, guarantee an egg outcome or claim access to server-side mechanics.
Compare two pet bodies
Expected hatches to return Pet 1: 2.0 · Pet 2: 2.0. Repeated-hatch numbers are planning estimates.
How to use the calculator
Choose exact pet names
Type a name or choose an autocomplete suggestion. Unknown Wow Factors cannot produce a percentage.
Check the metadata
Review the school, factor, egg and lifecycle flags before trusting the comparison.
Plan attempts
Use the one, three and five hatch estimates as repeated-attempt planning numbers, not a promise.
Known limits
Evidence and changes
Community calculator observed 2026-09-14; formula and Exclusive rules are labeled estimates.
Public pet body fields used as a normalization lead; unknown and lifecycle states remain explicit.
Community test-data explanation of hidden Wow Factor and relative return odds; not an official rule.