When Do Leghorn Chickens Start Laying?
Leghorn pullets typically lay their first egg at 16–18 weeks old (3.7–4.1 months) — among the earliest-laying breeds.
Figures reviewed against hatchery and breed-registry guidance · Last reviewed July 2026
- First egg window
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- pick a hatch date to see your timeline
What to expect from Leghorn layers
| First egg | 16–18 weeks (3.7–4.1 months) |
| Egg color | white |
| Eggs per year | ≈ 280–320 in the first laying year |
| Size class | standard |
The commercial white-egg layer. Leghorns are light, active, economical eaters and among the earliest breeds to lay — but flighty, and rarely broody.
Why your Leghorn might lay earlier or later
The 16–18 week window is typical, not guaranteed — individual hens vary, and hatchery strains of a breed often lay earlier than show-line birds bred for looks over production. The biggest wildcard is daylight: laying is triggered partly by day length, so a pullet reaching laying age in late fall commonly waits for the lengthening days of late winter, no matter what the calendar math says. Spring-hatched chicks usually run on schedule.
You'll know eggs are close when the comb and wattles flush red and the pullet starts squatting when you reach toward her — first eggs usually arrive within a week or two of the squat. Switch to layer feed around week 18 (or at the first egg), keep oyster shell available, and expect the first few eggs to be small or odd-shaped while her system calibrates. All normal, all edible.
Use the calculator above with your chicks' actual hatch date for the expected window, or compare all 30 breeds on the full First Egg Calculator.
Related
Sources
First-egg age and egg counts are the consensus of multiple hatchery and breed-registry sources (no extension service tabulates per-breed figures), cross-checked and last reviewed July 2026.
- The Livestock Conservancy — Chicken breed profiles