QUEENS & BROOD · PRINTABLE
Queen Bee Development Cheat Sheet
A printable egg-to-adult timeline for queens, workers, and drones, plus the usual queen mating and first-egg windows.
Guide reviewed September 16, 2026.
USE THE LIVE CALCULATORPlanning from a real inspection date?
Open Queen & Brood Calendar →Enter egg, capping, emergence, or another known date and calculate the rest of the queen/brood timeline.
BeekeeperCalc.comHoney Bee Development Cheat Sheet
| Caste | Egg hatches | Cell capped | Adult emerges |
|---|---|---|---|
| Queen | ~Day 3 | ~Day 8 | ~Day 16 |
| Worker | ~Day 3 | ~Day 9 | ~Day 21 |
| Drone | ~Day 3 | ~Day 10 | ~Day 24 |
Queen follow-up window
Day 16virgin queen emerges
~Days 21–24typical mating-flight window (5–8 days after emergence)
~Days 23–26+possible first eggs after successful mating
These are biological estimates, not guarantees. Weather, genetics, colony conditions, observation error, and mating success can shift real dates.
For a calendar from any known date: BeekeeperCalc.com/calculators/queen-brood-calendar/ · Source context: Penn State Extension queen development guidance.