As with any animal, adult guinea pig size can vary based on a number of factors. These include birth order, age, species, gender, diet, lifestyle, overall health, and genetics.
Most commonly, however, only length and weight are noted when measuring guinea pig size. There is a significant difference between the average guinea pig weight for males and that for females.
So, if youre wondering how much should a guinea pig weigh, part of the answer is the weight range. So, a guinea pigs breed plays a significant role in its weight and length. Unlike other animals in the rodent family, most guinea pigs do not have a visible tail that can count towards its overall length.
The average guinea pig size in length ranges from 8 to 10 inches (20-30 cm). These wonderful piggies have a stunning coat marked by cowlicks (rosettes) that create swirls of fur all over their body. They also have lovely bands of color in their fur that can range from pure ivory to deep grey.
An Abyssinian full–size guinea pig can range from 8 to 12 inches (20-30 cm) depending on gender, birth order, litter size, diet, and overall health. American guinea pigs tend to stay at the shorter end of the spectrum lengthwise, with adults only reaching about 8 to 9 inches (20-22 cm) at maturity. Weight-wise, a baby piggie will weigh between 2 and 4.5 ounces (60-130g) depending on birth order and litter size.
By the time a baby guinea pig is just over a year old, it will be at its full adult length and weight. It is generally possible to tell whether a guinea pig is a male or a female by the time it reaches the age of three weeks. Most female guinea pigs will typically top out on the smaller end of the size range for their breed at between 8-10 inches (20-25 cm).
A male Abyssinian guinea pig is far more likely to grow to the full 12 inches than a female. If you can imagine a guinea pig that weighed 1,543 pounds (700 kg) and stood 1.4 yards (1.3 meters) tall, you are imagining Phoberomys pattersoni , the biggest guinea pig ever, which lived 8 million years ago in what is now northern Venezuela. Phoberomys is officially the worlds biggest guinea pig, although scientists are still piecing together how it evolved into todays pint-sized relatives.
Scientists say this biggest guinea pig that ever lived ate mostly grasses like its tiny modern cousins, just lots more of it of course! Hopefully, weve provided you with lots of other interesting information and facts on guinea pigs as well. We love guinea pigs for their gentleness, cuteness, wonderful personalities, silky coats, and friendly dispositions.
American Cavy Breeders Association Banks, R. The Guinea Pig: Biology, Care, Identification, Nomenclature, Breeding, and Genetics . USAMRIID Seminar Series, 1989.
How big is a full grown guinea pig?
Guinea pigs are large for rodents; the common pet breeds weigh between 700 and 1,200 g (1.5 and 2.6 lb) when fully grown and measure between 20 and 25 cm (8 and 10 in) in length.
Can guinea pigs get large?
Growth. Guinea pigs grow very rapidly, and will double in size to around 15-20 cm (6-8 inches) after just 8 weeks. After this point their growth will slow somewhat, but they will still get significantly larger in a fairly short period of time, reaching around 20-25 cm (8-10 inches) after 16 weeks.
What size do guinea pigs get?
What is the average size of a guinea pig? Guinea pigs are reasonably large for rodents, weighing 500 to 1,500 grams (roughly 1 to 3 pounds) and having a body 20 to 40 cm (8 to 16 inches) long.
How long till a guinea pig is fully grown?
Adult Guinea Pigs. Guinea pigs are typically considered adults from 6 months to about 5 years of age.
Guinea pigs are smaller animals, though they are actually quite large for a rodent. When you first adopt a guinea pig, you may be getting and adult or a juvenile. If you adopt a smaller guinea pig, it is important to ensure they are growing along the right timeline. Otherwise, it could signal that something is wrong.
Guinea pigs are native to the Andes of South America, which is why they often have longer hair than other rodents. Instead, they are likely descended from a different species and evolved next to humans over thousands of years like dogs.
They are also important parts in folk practices, hinting at how long ago they were domesticated. Image Credit: Jaroslaw Slodkiewicz, Unsplash The information from this chart shows the standard growth of a Hartley Guinea Pig. You can judge a guinea pigs full size quite accurately at 14-16 weeks, though they may gain a few grams afterward.
Image Credit: Alexas_Fotos, Pixabay When judging the growth of your guinea pig, you should focus mostly on the weight especially if you have a younger animal. The animal will likely not stay still for an extended amount of time, which can make measuring difficult. The easiest thing to do is use a kitchen scale, distracting your guinea pig with a treat or affection.
Put a paper towel in the bottom of the scale to give your guinea pig some extra grip, which may help them feel a bit safer. In general, males will grow faster than females and end up a few hundred grams larger. She currently resides in Tennessee with four dogs, three cats, two fish, and a lizard, though she has dreams of owning chickens one-day!
If youve never owned a guinea pig before and are thinking of getting one, you may have wondered how fast they can grow and what size they can eventually reach. Or you may already own a baby guinea pig that is rapidly growing and wonder when the growth rate will slow down. The answers to these questions may determine what size hutch size you purchase, how much food to buy or how many guinea pigs you end up adopting. It is therefore important to be aware of the various growth stages in a Guinea pigs life, so that you can properly support them as they mature.
Guinea Pigs grow much bigger than other pet rodents such as hamsters, mice and rats. However, it important to bear in mind that there can be significant variation between different breeds of guinea pig.
A guinea pig is not considered to be an adult until 6 months of age, but they are not necessarily fully grown at this point. Using the guidelines below, you may be able to make a rough estimate of your guinea pigs age, but this is easier to do while the cavy is still young. As mentioned, growth plateaus after full maturity so other factors such as general condition and health may be a better indicator for age.
Once guinea pigs reach full maturity at 14 months of age, they generally stay around the same size for most of their adult life. Its good to have a rough idea of how much a guinea pig will weigh at different stages of their development, as this will allow you to ensure they are healthy and stay on track as they mature. Baby guinea pigs, or pups, only weigh about 0.15-0.25 pounds and measure between 3-4 inches at birth only a tiny fraction of their final adult size!
At this point most guinea pigs will be almost the same length as their final adult size, but they will still gradually increase in weight until they are fully mature. There will always be some variation in size between guinea pigs of the same breed, due to several factors including genetics, nutrition and amount of physical activity. But the biggest size variance between guinea pigs comes when comparing individuals of different breeds.
But other factors like nutrition and housing are under the owners control, and its important to know how to maximize on these to allow your guinea pig to be as healthy and happy as possible. Perhaps the most important factor in ensuring healthy growth for your guinea pig is proper nutrition. They need between 10-50mg per day, and whilst much of this can be attained from leafy greens, its worth supplementing with small amounts of citrus fruit to ensure this quota is met.
This will not only lead to a happier cavy, but also a healthier one, as a clean environment reduces the risk of diseases such as pneumonia. This can be achieved by including various toys and tubes in the enclosure that allow guinea pigs to display natural behavior patterns. Studies have shown that a lack of companionship can increase your guinea pigs stress levels, resulting in poorer health.
This particular study even showed that a male guinea pig lost 20.9% of their initial body weight during long-term isolation. As you can see, there can be a lot of variation in size between guinea pigs and it is very important to maximize on the areas mentioned above to ensure healthy growth. If you are concerned that your guinea pig is not growing as quickly as it should or if they seem otherwise unwell, contact your local veterinarian immediately.
They need sufficient room and floor space to roam and exercise, with separate places to nest, dig and burrow.
A full grown guinea pig varies in size depending on their gender and also their breed. Generally speaking guinea pigs roughly range from 10-12 inches (25.4 – 30.5cm) in length and weigh between 1.5 – 2.6 pounds (700 – 1179 grams). Trying to differentiate a male and female guinea pig based on their weight or size may be tough, so consider distinguishing them based on their genital area, if thats something youre trying to do.
How Big Do Guinea Pigs Get?
So, how big do guinea pigs get? There is no single or simple answer to this question, but there are helpful guidelines.A guinea pig’s size consists of its length, width, height, and weight. Most commonly, however, only length and weight are noted when measuring guinea pig size.Let’s begin our look at guinea pig size by looking at average guinea pig weight.
Guinea Pig Weight
There is a significant difference between the average guinea pig weight for males and that for females.A female adult guinea pig generally weighs between 1.5 and 2 pounds (700-900g). Whereas a male adult guinea pig generally weighs between 2 and 2.6 pounds (900-1,100g).With numbers that small, it might not seem like a big difference. However, it means that a male full–size guinea pig generally weighs about one-third more than a female.So, if you’re wondering how much should a guinea pig weigh, part of the answer is the weight range.The vast majority of guinea pigs weigh somewhere between 1.5 and 2.6 pounds (700-1,100g). Of course, there will always be petite or large exceptions.For more general informaiton about guinea pigs and their life cycle, we invite you to review this informative post.
Full-Size Guinea Pig
So, how big do guinea pigs get?As with hamsters, dogs, cats, and other popular household pets, there are several breeds of guinea pig that are kept as pets today. The American Cavy Breeders Association (ACBA) recognizes 13 guinea pig breeds, but there are many more breeds that they don’t recognize.Some are quite large breeds, while others are much more petite. So, a guinea pig’s breed plays a significant role in its weight and length.Unlike other animals in the rodent family, most guinea pigs do not have a visible tail that can count towards its overall length. Which is actually good, since this can be confusing when the tail length represents half of a rodent’s overall length!For guinea pigs that do have visible tails, their tails are usually only between 1-1.5 inches (2.5-3.8 cm). They are often hidden from sight by the guinea pig’s fluffy fur coat.The average guinea pig size in length ranges from 8 to 10 inches (20-30 cm).Now that we know how big the average guinea pig is, let’s look at some exceptions.
Biggest Guinea Pig Breed
The award for the biggest guinea pig breed goes to the Rex guinea pig, which can grow up to 17 inches (43 cm) at maturity!To date, no other modern guinea pig breed even comes close to the Rex guinea pig’s incredible adult length!This one’s a gentle “giant” though as it’s also known as a low-maintenance lap pig that appreciates affection.
Abyssinian Guinea Pig Size
If you’re curious about how big do guinea pigs get, you’ll be intrigued to know that the larger guinea pig breeds grow across a length range of about 4 inches.The larger pigs in each breed range from 10 to 12 inches (25-30 cm).Here are some common and popular large guinea pig breeds:
American Guinea Pig Size
The American guinea pig is one of the smaller breeds on the guinea pig size chart.American guinea pigs tend to stay at the shorter end of the spectrum lengthwise, with adults only reaching about 8 to 9 inches (20-22 cm) at maturity.
How Big Are Baby Guinea Pigs?
If you think adult guinea pigs are cute, you should see them when they are babies!Baby guinea pigs don’t stay babies for very long, however, so usually only breeders get to see these teensy versions of the adult pets we all love.If you are wondering how big baby guinea pigs are, well, an infant guinea pig may be only 3 to 4 inches (8-10 cm) long at birth!Weight-wise, a baby piggie will weigh between 2 and 4.5 ounces (60-130g) depending on birth order and litter size. The average birth weight is 2.8 ounces (80 g).The larger the litter, the smaller the baby guinea pigs will be. Litters can range from one to eight babies, with the average litter being three.Infant guinea pigs grow very fast. In just eight weeks, they will double in size and weight. In another eight weeks, they will nearly double in size and weight yet again.By the time a baby guinea pig is just over a year old, it will be at its full adult length and weight.
How Big Do Female Guinea Pigs Get?
It is generally possible to tell whether a guinea pig is a male or a female by the time it reaches the age of three weeks.The most common way is to palpate the abdominal area, but size can sometimes also be an indicator of gender. Males are generally 25-30% larger than females in both weight and length.Most female guinea pigs will typically top out on the smaller end of the size range for their breed at between 8-10 inches (20-25 cm).
How Big Do Male Guinea Pigs Get?
Males are almost always larger than female guinea pigs of the same breed. They are the ones who are most likely to grow to the breed’s maximum length.For instance, if you bring home an Abyssinian, you know that Abyssinian guinea pig size ranges from 8 to 12 inches (20-40 cm).A male Abyssinian guinea pig is far more likely to grow to the full 12 inches than a female.
Biggest Guinea Pig Ever
If you can imagine a guinea pig that weighed 1,543 pounds (700 kg) and stood 1.4 yards (1.3 meters) tall, you are imaginingPhoberomys is officially the world’s biggest guinea pig, although scientists are still piecing together how it evolved into today’s pint-sized relatives.Unlike modern guinea pigs, this really big guinea pig also had a really long tail that it used for balance. Scientists say this biggest guinea pig that ever lived ate mostly grasses like its tiny modern cousins, just lots more of it of course!
How Big Do Guinea Pigs Get?
We’ve answered your questions about how big do guinea pigs get and how much should a guinea pig weigh. Hopefully, we’ve provided you with lots of other interesting information and facts on guinea pigs as well.To recap, the average guinea pig weight is 25-40 ounces (700-1100 g) and guinea pig size lengthwise is typically 8-10 inches (20-25.4 cm).We love guinea pigs for their gentleness, cuteness, wonderful personalities, silky coats, and friendly dispositions. But when you love your guinea pig, you want to learn all there is to know about him or her too!We encourage you to keep learning, and also to share what you learn with other guinea pig enthusiasts. How big is your guinea pig? Do you have a furry friend that’s on one end or the other of the size range? Tell us about him or her in the comments.
Fact About Guinea Pigs
Guinea pigs are native to the Andes of South America, which is why they often have longer hair than other rodents. They’re used to a colder climate. The origin of the name “Guinea Pig” is actually very unclear, especially considering that these animals aren’t related to pigs and aren’t from Guinea.These animals are now fully domesticated, which wild guinea pigs not existing naturally in the wild. Instead, they are likely descended from a different species and evolved next to humans over thousands of years – like dogs.In the Western world, they are often kept as pets. They were first introduced in the 16In the Andean people, the guinea pig is often raised as a food source. They are also important parts in folk practices, hinting at how long ago they were domesticated.
When Does a Guinea Pig Stop Growing?
The information from this chart shows the standard growth of a Hartley Guinea Pig. Males will be bigger than females.
Factors Affecting the Size of Guinea Pigs
The most obvious factor is gender. Males tend to be quite a bit bigger than females, no matter the breed. You can expect all males to grow at a faster rate, though both genders will stop growing at about the same time.Another factor is the breed. Some breeds are bigger than others. The Hartley guinea pig is one of the most common, especially in the scientific community. Therefore, we have the most scientific information about their growth rate. However, other breeds will grow at different rates and reach different sizes.Diet can also affect the size. However, if fed correctly, all guinea pigs should keep up with others of their gender and species.
Ideal Diet for Maintaining a Healthy Weight
Guinea pigs need a variety of foods to thrive. Typically, they need unlimited amounts of hay. This hay should be low in calcium, such as Timothy hay. They will need to be supplemented with pellets, which will contain more nutrients and help the rodent stay healthy.Guinea pigs can also eat a variety of fruits and veggies, though you should be careful in choosing the correct options for your guinea pig. Treats should be fed sparingly if at all, as guinea pigs are very small.
How to Measure Your Guinea Pig
When judging the growth of your guinea pig, you should focus mostly on the weight – especially if you have a younger animal. While you don’t want your guinea pig being overly large for their length, comparing their length to their weight is not always an accurate way to judge whether a guinea pig is at a healthy weight or not.Measuring a guinea pig can be a bit difficult. The animal will likely not stay still for an extended amount of time, which can make measuring difficult.The easiest thing to do is use a kitchen scale, distracting your guinea pig with a treat or affection. Put a paper towel in the bottom of the scale to give your guinea pig some extra grip, which may help them feel a bit safer.