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.
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