Calculadora de Gestação de Cobaia
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
gestação de cobaia: 68 dias (59–72)
About this calculator
The Guinea Pig Gestation Calculator estimates the expected due date based on the mating or insemination date. The average gestation for guinea pigs is 68 days, but it can range from 59 to 72 days. The tool accounts for this variation to provide an approximate date, useful for breeders and owners to monitor pregnancy progress.
The calculation is simple: add 68 days to the start date of gestation. For example, if mating occurred on January 1st, the expected due date is March 9th (68 days later). The calculator also provides the confidence interval (59 to 72 days), allowing more realistic planning, since not all pregnancies follow the exact average.
Use this calculator to monitor the pregnancy of your guinea pigs, especially in breeding facilities or for research purposes. Knowing the likely due date helps prepare the environment, ensure proper nutrition, and identify potential complications. Remember that stress or health issues can alter the gestation length.
Frequently asked questions
What is the average gestation length for a guinea pig?
The average is 68 days, but it can range from 59 to 72 days.
How to use the calculator if I don't know the exact mating date?
If you are unsure, use the approximate date when you observed mating. The result will be an estimate.
Does the calculator work for all guinea pig breeds?
Yes, the average is similar for all breeds, but small individual variations may occur.
What should I do if the guinea pig does not give birth on the expected date?
Consult a veterinarian. Gestation can extend up to 72 days; after that, complications may arise.
Can the calculator predict the number of pups?
No, it only estimates the due date. The number of pups is determined by ultrasound or veterinary exam.