How Heavy Is a Polar Bear?

a Polar Bear weighs about

450 kg (992 lb)

Typicaladult male 300–800 kg; adult female 150–300 kg; females smaller than males

Typical range: 150 kg – 800 kg.

4/8

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

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

  • model year 2024 US fleet average curb weight

  • adult male 300–800 kg; adult female 150–300 kg; females smaller than males

  • heaviest ball allowed in tenpin bowling (16 lb); USBC sets no minimum weight

  • You

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Put it in perspective

Sources

  1. [1] University of Michigan Museum of Zoology

    Ursus maritimus (polar bear) | Animal Diversity WebMuseum / zoo / university

    “Adult males weigh between 300-800 kg (660-1760 lbs) and can reach 2.5 m in length ... Females are smaller, weighing 150 to 300 kg (330 to 660 lbs) and measuring 1.8 to 2 m in length.”

    Value as published: 300-800 kg (male); 150 to 300 kg (female) · accessed 2026-11-11.

  2. [2] University of Michigan Museum of Zoology

    Ursus maritimus (polar bear) | Animal Diversity WebMuseum / zoo / university

    “Range mass 150 to 800 kg”

    Value as published: 150 to 800 kg · accessed 2026-11-11.

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

Frequently asked questions

How much does a polar bear weigh?

a Polar Bear weighs about 450 kg (992 lb) — adult male 300–800 kg; adult female 150–300 kg; females smaller than males.

How much is a polar bear in pounds and ounces?

992 lb, which is 15,900 oz. In metric terms: 450 kg.

Is a polar bear heavier than an average new car?

No. a Polar Bear weighs about 450 kg (992 lb), while an average new car is about 4,350 lb (1,980 kg) — roughly 1/4.39.

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.