
It's about as big as a Penny.
In other words, the size of a Penny is 1 times 562,000 circular mils.
(United States onecent coin) (a.k.a. Lincoln penny, a.k.a. Cent, a.k.a. One cent piece)The Lincoln penny, in its current design since 1909, has a diameter of 19.05 mm (0.75 in) and an area of 562,000 circular mils.
It's about oneandonetenth times as big as a Dime.
In other words, 562,000 circular mils is 1.13 times the size of a Dime, and the size of a Dime is 0.885 times that amount.
(United States tencent coin) (a.k.a. Roosevelt dime)The dime, in its current design since 1946, has a diameter of 17.91 mm (0.705 in) and an area of 497,100 circular mils.
It's about fourfifths as big as a Nickel.
In other words, 562,000 circular mils is 0.806 times the size of a Nickel, and the size of a Nickel is 1.241 times that amount.
(United States fivecent coin) (a.k.a. Jefferson nickel)The nickel, in its current design since 1938, has a diameter of 21.21 mm (0.835 in) and an area of 697,200 circular mils.
It's about seventenths as big as a Postage Stamp.
In other words, the size of a Postage Stamp is 1 times 562,000 circular mils.
(average; United States dimensions)A typical postage stamp measures an average of 800,000 circular mils. One of the most prized stamps among collectors is the USissued "Inverted Jenny" stamp printed in 1918, which features an upsidedown image of Curtiss JN4 ("Jenny") airplane; a single stamp sold for $977,500 at a 2007 auction.
It's about threefifths as big as a Quarter.
In other words, 562,000 circular mils is 0.6161 times the size of a Quarter, and the size of a Quarter is 1.623 times that amount.
(United States quarterdollar coin) (a.k.a. Quarter dollar, a.k.a. Washington quarter, a.k.a. two bits)The George Washington quarter, in circulation in various forms since 1932, has a diameter of 24.26 mm (0.955 in) and an area of 912,200 circular mils.
It's about twofifths as big as a Secure Digital (SD) card.
In other words, 562,000 circular mils is 0.37 times the size of a Secure Digital (SD) card, and the size of a Secure Digital (SD) card is 2.7 times that amount.
A Secure Digital (SD) card measures 3.2 cm by 2.4 cm for a total area of 1,500,000 circular mils. SDXC Cards, the latest standard for the technology, will allow the cards to hold up to 2 terabytes of data.
It's about threeandahalf times as big as a Nailhead.
In other words, 562,000 circular mils is 3.663 times the size of a Nailhead, and the size of a Nailhead is 0.273 times that amount.
(for 11gauge wire nai)An 11gauge nailhead measures 153,400 circular mils. Nails have been used since ancient times; archaeologists have discovered Ancient Egyptian nails that are over 5,000 years old. 
