How Heavy Is a Blue Whale?

a Blue Whale weighs about

150 t (165 US tons)

Typicaladult; females larger than males; Antarctic subspecies up to 330,000 lb (149,685 kg), North Atlantic/North Pacific over 100,000 lb (45,359 kg)

Typical range: 45,400 kg – 150,000 kg.

4/8

Using a log scale so small objects stay visible — the numbers stay real.

  • the Eiffel Tower10,100,000 kg

    official figures published by the tower operator: 7,300 t of metal frame, 10,100 t total including the lifts, shops and antennae (French metric tonnes)

  • a blue whale150,000 kg

    adult; females larger than males; Antarctic subspecies up to 330,000 lb (149,685 kg), North Atlantic/North Pacific over 100,000 lb (45,359 kg)

  • adult male 4,500–6,100 kg; adult female 2,000–3,500 kg

  • model year 2024 US fleet average curb weight

  • You

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Put it in perspective

Sources

  1. [1] NOAA Fisheries

    Blue Whale | NOAA FisheriesGovernment agency

    “Weight Up to 330,000 pounds”

    Value as published: Up to 330,000 pounds · accessed 2026-11-11.

  2. [2] NOAA Fisheries

    Blue Whale | NOAA FisheriesGovernment agency

    “blue whales can grow up to about 90 feet and are over 100,000 pounds, but in the Antarctic, they can reach up to about 110 feet and weigh more than 330,000 pounds.”

    Value as published: over 100,000 pounds (North Atlantic/Pacific); more than 330,000 pounds (Antarctic) · accessed 2026-11-11.

Last updated 2026-11-11.Report a correction (please include a source link).

Frequently asked questions

How much does a blue whale weigh?

a Blue Whale weighs about 150 t (165 US tons) — adult; females larger than males; Antarctic subspecies up to 330,000 lb (149,685 kg), North Atlantic/North Pacific over 100,000 lb (45,359 kg).

How much is a blue whale in pounds and ounces?

330,000 lb, which is 5,280,000 oz. In metric terms: 150,000 kg.

Is a blue whale heavier than an African elephant?

Yes. a Blue Whale weighs about 150 t (165 US tons), while an African elephant is about 4.5 t (4.96 US tons) — roughly 33×.

Where does this number come from?

Every source is listed at the bottom of this page with publisher, link, access date and a verbatim quote. Numbers are only published when a qualifying source can be verified.