Egg Production Rate Calculator

Work out egg production rate instantly with clear inputs, formula shown and shareable results.

About Egg Production Rate Calculator

Divides eggs collected by hen-days to give the hen-day production rate, the standard laying flock performance measure.

Formula

Hen-day production

Rate (%) = eggs collected / (hens x days) x 100

Worked example

With the default values below, Egg Production Rate Calculator returns Hen-day production rate of 80.000%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Eggs collectedaccepts 0–10,000,000: 5,600
Hens in the flockaccepts 1–1,000,000: 250
Days in the periodaccepts 1–365: 28

Results

Hen-day production rate: 80.000%
Eggs per hen in the period: 22.400
Dozens collected: 466.67
Eggs per day: 200.00

Step by step

1Values used
2Hen-day production
3Hen-day production rate= 80.000
4Eggs per hen in the period= 22.400
5Dozens collected= 466.67
6Eggs per day= 200.00

Assumptions and limits

The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or fees or charges into account.
Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

What rate is good?

Commercial layers peak above 90% hen-day production and average 75 to 85% across a laying cycle.

How does hen-housed production differ?

It uses the original number housed as the denominator, so mortality lowers it while hen-day production ignores it.