Swine Gestation Calculator
Chemistry & BiologyEstimate a sow farrowing date range from the number of days since breeding.
Days Until Average Farrowing (day 114)
Days remaining until the average expected farrowing date, 114 days after breeding.
Days Until Earliest Possible (day 112)
55
Days remaining until the earliest end of the typical farrowing range.
Days Until Latest Possible (day 120)
63
Days remaining until the latest end of the typical farrowing range.
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Odeh Ahwal0people find this calculator helpful
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Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
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Chemistry & Biology calculators
Frequently Asked Questions
How long is a pig pregnancy?
A sow pregnancy averages 114 days, sometimes remembered by breeders as roughly 3 months, 3 weeks, and 3 days, with a typical range of 112 to 120 days.
What affects how close a sow farrowing date is to the average?
Genetics, age, environment, nutrition, and how many previous litters a sow has had can all shift the actual farrowing date somewhat earlier or later than the 114-day average.
Why do breeders use a memorable rule like 3-3-3?
A simple mnemonic like 3 months, 3 weeks, and 3 days is easier to track by calendar in daily farm operations than remembering the exact 114-day figure, while landing on very close to the same date.
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