How big is an acre? Wildfire sizes explained

PARADISE, Calif. (KGO) -- Wildfires are typically described in terms of the number of acres burned. Mathematically, an acre is equal to 43,560 square feet.

MAPS: A look at the Camp Fire in Butte County and other California fires

That's approximately the size of a football field, minus the end zones.

For comparison, the City of San Francisco, at 46.87 square miles, is nearly 30,000 acres.

Yosemite National Park covers 761,266 acres.

PHOTOS: Camp Fire burns through Butte County, California

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In this aerial photograph, an evacuee encampment is seen at a Walmart parking lot in Chico, California on November 19, 2018.

Josh Edelson for the Washington Post

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