How Big Is…?

How big is Montana?

Montana covers 147,040 square miles (380,831 km²), 145,546 of them land. It is the fourth-biggest state, about the size of Japan.

square miles
147,040
km²
380,831
acres
94.1 million
football fields
71.2 million
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Outline of Montana drawn to scale200 km · 124.3 miDrawn to scale · map loading

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CreditMap: how-big-is.com. Outline: US Census Bureau.

630 miles by 255

It is about 630 miles long and 255 miles wide. Mountains fill its western half and prairie its eastern half.

Montana against Japan

Japan covers about 146,000 square miles, so Montana is about the same size. Drag Montana over Japan on the map above to compare.

How it compares

Questions people ask

How many square miles is Montana?

147,040 square miles (380,831 km²), 145,546 of them land.

Is Montana bigger than Idaho?

Yes. It is about 1.8 times the size of Idaho.

Where does Montana rank by size?

4th of the 50 states, by total area and by land area alike.

How long is Montana?

About 630 miles (1,014 km) long and 255 miles (410 km) wide.

How big is Montana compared to Texas?

About 55% of the size of Texas.

Where the numbers come from

Official figure: 147,040 square miles in all, 145,546 of them land, per the US Census Bureau. Outline: US Census Bureau (source), licence: Public domain.

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