How much does a Komodo dragon weigh?

Adult Komodo dragons usually weigh around 70 kilograms in the wild, while the largest verified individuals have reached 166 kilograms. That means the answer depends on whether you mean a typical wild animal, a captive specimen, or a record-size dragon documented with its stomach contents still inside.

How much does a Komodo dragon weigh in the wild?

The Smithsonian’s National Zoo says wild Komodo dragons typically weigh about 70 kilograms, and its follow-up fact sheet repeats that figure for adults in the wild. Reuters-syndicated reporting quoted in a secondary source also describes Komodo dragons as weighing up to 70 kilograms and measuring about three metres in length.

In other words, a normal adult in nature is far lighter than the record animals often shown in photos or documentaries. The wild figure is the most useful baseline for readers comparing a dragon they may see on Komodo Island with the species’ biggest examples.

What is the heaviest verified Komodo dragon?

The Smithsonian says the largest verified specimen measured 3.13 metres and weighed 166 kilograms. San Diego Zoo also lists the heaviest verified animal at 166 kilograms, which is consistent with that record.

That record matters because it is not the same thing as an ordinary body weight for the species. Wikipedia’s summary of the record notes that the animal’s mass included undigested food, which helps explain why the heaviest verified dragon was much heavier than the usual wild adult.

Do males and females weigh the same?

No. Guinness World Records data quoted in the sources says an average adult male weighs 79 to 91 kilograms, while an average adult female weighs 68 to 73 kilograms. The Smithsonian and San Diego Zoo both also note that males are heavier than females.

Those figures are useful because they show why a single “average” weight can be misleading. A Komodo dragon’s sex, age, and whether it is wild or captive all affect the number.

Why do some sources give different numbers?

The difference comes from what each source measures. Some pages report typical wild adults at about 70 kilograms, while others give higher averages that appear to reflect captive animals or record-size individuals.

For a simple answer, the safest reading is that most adult Komodo dragons in the wild are around 70 kilograms, but well-fed or captive animals can be much heavier, and the heaviest verified specimen reached 166 kilograms.

How big is that compared with a person?

San Diego Zoo describes adult Komodo dragons as weighing 154–300 pounds or 70–136 kilograms, and Smithsonian puts the wild typical figure at 70 kilograms. That places a healthy adult dragon in the range of a large human, while the record animal was far heavier than most adults.

For readers visiting Komodo National Park, the weight figure helps explain why these lizards are treated as apex predators and why distance from wildlife is taken seriously on the islands where they live.

Sources

• Smithsonian’s National Zoo
• San Diego Zoo Wildlife Alliance
• Wikipedia