Tweet. Obviously, the answer depends on how fast you walk, but the average person, walking without children can walk a mile in about 20 to 30 minutes. In contrast, you can run a mile in 5 to 9 minutes. If there are inhinderances like steep or uneven terrain, add time to your journey.
Thus, the gestation period for humans in days can be calculated as 280 days. However, the actual gestation period, as compared to other mammals, is around 267 days. But then what is the average gestation period for humans? It is taken to be about 259 to 294 days.
Gestation Periods Chart. by Vaughn Aubuchon. Here is a pregnancy period comparison chart of human babys, selected pets and other mammals. The length of a human pregnancy is usually referred to as 9 months for a baby, which is not completely accurate. It's eight days less.The length of time in the womb for humans and other mammals varies considerably, based mostly upon size.ere is a pregnancy period comparison chart of human babys, selected pets and other mammals. The length of a human pregnancy is usually referred to as 9 months for a baby, which is not completely accurate.