How big is a whale? In different species!

How big is a whale? We’ve all seen images of whales swimming in the ocean, yet many of us have never stopped to think about just how big these creatures really are. After all, how often do we get the opportunity to measure a whale with our own hands?

In this blog post, we’ll explore exactly what makes whales so enormous compared to other living animals and why they’re some of nature’s most awe-inspiring creations. From giant blue whales growing up to 100 feet long to dwarf sperm whales stretching out just 8 feet long – you’re sure to be pleasantly surprised by the amazing size range that each different species offers!

Here’s the answer: How big is a whale?

The answer depends on the species. Whales can reach lengths of up to 100 feet (30 m) and weigh more than 200 tons (181 metric tonnes). On the opposite end, there’s the smallest grows to less than 8 feet (2.4 m) in length and weighs an average of 272 kg.

Whales are also incredibly wide, with some species reaching widths up to 50 feet (15 m)! This is especially impressive when they’re often found in relatively shallow waters.

To put it into perspective, the average blue whale is larger than a Boeing 737 aircraft and can weigh more than the combined weight of twenty-five adult elephants! With such massive bodies, it’s no surprise that whales are some of the most impressive creatures on Earth.

What is the largest whale species?

How Big Is A Whale

The largest whale species is the blue whale, which can reach lengths of up to 100 feet (30 m) and weighs more than 200 tons (181 metric tonnes). The Antarctic blue whale is the biggest animal on the Earth, weighing up to 400,000 pounds (approximately 33 elephants) and reaching up to 98 feet in length.

Other large whale species include finback whales, measuring about 85 feet, and sperm whales, which can grow up to 60 feet long and weigh up to 45 tons.

What is the smallest whale species?

The smallest whale species is the dwarf sperm whale, measuring just 8 feet (2.4 m) long and weighing an average of 272 kg. This species lives in tropical and subtropical waters all around the world, but they are rarely seen due to their small size.

How big is a humpback whale?

Humpback whales are one of the most popular cetaceans due to their acrobatic abilities and beautiful songs. On average, they grow up to around 60 feet (18.2 m) long and weigh about 36 tons.

These gentle giants are awe-inspiring when they breach the water’s surface, with their bodies reaching heights of up to 15 feet (4.5 m) out of the sea!

In addition to their size and strength, humpback whales are renowned for their sociality and intelligence – making them one of the most beloved animals on Earth.

How Big Is A Whale

How big is a killer whale?

Killer whales, also known as orcas, are the largest members of the dolphin family and are some of the most iconic cetaceans. These powerful predators typically reach lengths of 26 feet (8 m) and weigh up to 6 tons (5 metric tonnes).

What’s more impressive is that their front fins can grow up to 6.5 feet (2 m) long. Despite their size, killer whales are incredibly agile and can speed through the water at over 34.8 mph (56 km/h)!

How big is a whale calf?

The size of a whale calf varies depending on the species. On average, newborn calves are roughly a fourth of their mother’s length and comprise 3-4% of her weight.

Pygmy right whale calves are the smallest baleen whales, measuring just 1.5 m(or 5 feet) upon birth. Comparatively, newborn blue whales measure around 7 m and weigh an astonishing 2,700 to 3,600 kg (6,000 – 8,000 pounds).

No matter the size of the species, whale calves are adorable and have become a favorite of wildlife enthusiasts. Their remarkable growth rate is also fascinating, with some species doubling in size within their first year!

How big is a whale’s penis?

The size of a whale’s penis can vary depending on the species. On average, a whale’s penis is between 8 to 10 feet long and 1 foot in diameter. Each of its testes can weigh up to 150 pounds and ejaculate gallons of sperm in a single go.

A sperm whale’s penis can range between 5 to 16 feet long and 2 to 4 inches in diameter. A humpback whale’s penis can be up to 10 feet long.

How big are a whale’s eyes?

The size of a whale’s eyes can also vary depending on the species. An adult gray whale’s eyes are about the size of a baseball’s, and blue whales’ eyes are the same size as a cow’s. Humpback whales’ eyes are roughly the same size as a cow’s.

How big is a whale’s brain?

Whales have highly complex brains [1], allowing them to think, learn, and remember in ways that are similar to humans. They also can communicate with one another using a variety of sounds and can even recognize their species by sight.

The sperm whale has the biggest brain of any animal species, weighing up to 20 pounds (9 kg). The blue whale’s brain is about 15 pounds (6.8kg), and the brain of a humpback whale is about 10 pounds (4.6kg).


Regardless of species, whales are remarkable animals and deserve to be appreciated for their immense size. Whether you’re watching them from shore or getting up close in a boat, there’s no denying that whales are truly awe-inspiring. So the next time you catch a glimpse of one in the ocean, remember to take a moment and marvel at its remarkable size! How big is a whale? The answer is – enormous!

See our article How do whales hear? To explore more about whales’ ears.