A small sunspot may measure 1,000 miles wide and a big sunspot can be as big as 100,000 miles wide. Sunspots usually have a dark central region called the umbra that is surrounded by a less dark region, the penumbra. Some small sunspots, called pores, have an umbra but no penumbra. In the picture of a sunspot, they usually come in groups where one is generally the largest. They are usually formed in the sun's equator.
Sunspots are small but then grow larger.
Sunspots may cover the sun sun mant times more than the size of the Earth. Click HERE for more information on sunspots.