How Heavy Is the Empire State Building?

the Empire State Building weighs about

331,000 t (365,000 US tons)

Typicalcompleted 1931, as published on the building's official site: approximately 365,000 US tons for the whole structure
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Using a log scale so small objects stay visible — the numbers stay real.

  • completed 1931, as published on the building's official site: approximately 365,000 US tons for the whole structure

  • 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

  • You

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Put it in perspective

Why weights differ

"Tons" on a US building's own site means short tons, so 365,000 tons is about 331,122,430 kg; the figure covers the building structure, not its contents or the tenants it carries.

Sources

  1. [1] Empire State Building (official site)

    Empire State Building Facts: Height, Floors & FiguresManufacturer

    “The Empire State Building weighs approximately 365,000 tons.”

    Value as published: approximately 365,000 tons · accessed 2026-11-11.

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

Frequently asked questions

How much does the Empire State Building weigh?

the Empire State Building weighs about 331,000 t (365,000 US tons) — completed 1931, as published on the building's official site: approximately 365,000 US tons for the whole structure.

How much is the Empire State Building in pounds and ounces?

730,000,000 lb, which is 11,700,000,000 oz. In metric terms: 331,000,000 kg.

Is the Empire State Building heavier than the Eiffel Tower?

Yes. the Empire State Building weighs about 331,000 t (365,000 US tons), while the Eiffel Tower is about 10,100 t (11,100 US tons) — roughly 33×.

Why do sources give different weights?

"Tons" on a US building's own site means short tons, so 365,000 tons is about 331,122,430 kg; the figure covers the building structure, not its contents or the tenants it carries.

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.