Predict the calving date for your cattle based on the mating or AI date and breed.
Mating / AI Date
Return to Estrus (21 Days)
Our cattle gestation calculator provides an accurate estimate of when your cow will calve based on the mating or artificial insemination (AI) date. This is an essential tool for farm management and preparation for the calving season.
While the average gestation period for a cow is 283 days, it varies by breed. For example, Holsteins average 279 days, while Brahmans can take up to 292 days. Our calculator takes these breed-specific averages into account for higher accuracy.