First Date Whale was Bred (mm/dd/yyyy) Sperm Whale’s Approximate Due Date
	*Uses an average 525 day gestation period for a Sperm Whale. Whale gestation periods can generally be anywhere from 480-590 days.

Sperm Whale Gestation Calculator: About the Results

The Whale Gestation Calculator is a much simpler process to use than the traditional Whale Gestation Chart where you had to count the days until the Whale due date.

Important Guidelines in Using Our Whale Pregnancy Calendar Calculator

GestationCalculator.com is providing this Whale pregnancy calculator as a service to help visitors answer the question ‘How Long Are Whales Pregnant For?’ It’s important that you enter the 1st day the whale was bred for it to work properly. Also, try using any of our other gestation calculators just for fun! Please direct any questions you may have to askabreeder@gmail.com.