It's about half as big as a Post-it® Note (3M)
In other words, 724 nanoacres is 0.540 times the size of a Post-it® Note (3M), and the size of a Post-it® Note (3M) is 1.90 times that amount.(3M) (generically sticky notes, a.k.a. repositionable notes, a.k.a. repositional notes)
A Post-it® Note measures 1,300 nanoacres in total area. In September, 1989, Hurricane Hugo swept through Charleston, South Carolina with winds up to 230 kph (140 mph), uprooting eight oak trees in Mr. Bruce Brakefield's yard, but leaving in place a Post-it® note attached to his front door.
It's about half as big as a Playing Card
In other words, 724 nanoacres is 0.520 times the size of a Playing Card, and the size of a Playing Card is 1.90 times that amount.(ISO 216 B8 size)
A single ISO 216 B8-size playing card measures 1,400 nanoacres. Although this size is the most common playing card, many casinos use the smaller "bridge size" card — 650 nanoacres smaller.
It's about four times as big as a Secure Digital (SD) card
In other words, 724 nanoacres is 3.80 times the size of a Secure Digital (SD) card, and the size of a Secure Digital (SD) card is 0.260 times that amount.A Secure Digital (SD) card measures 3.2 cm by 2.4 cm for a total area of 190 nanoacres. SDXC Cards, the latest standard for the technology, will allow the cards to hold up to 2 terabytes of data.
It's about six-and-a-half times as big as a Quarter
In other words, 724 nanoacres is 6.3390 times the size of a Quarter, and the size of a Quarter is 0.15780 times that amount.(United States quarter-dollar 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 114.20 nanoacres.
It's about seven times as big as a Postage Stamp
In other words, the size of a Postage Stamp is 0.10 times 724 nanoacres.(average; United States dimensions)
A typical postage stamp measures an average of 100 nanoacres. One of the most prized stamps among collectors is the US-issued "Inverted Jenny" stamp printed in 1918, which features an upside-down image of Curtiss JN-4 ("Jenny") airplane; a single stamp sold for $977,500 at a 2007 auction.
It's about eight-and-a-half times as big as a Nickel
It's about ten-and-a-half times as big as a Penny