Developers! The Measure of Things is pleased to be opening sign-ups for the beta version of its API, which lets you integrate comparative measurements into your own web projects. Click here to learn more.
Bluebulb Projects presents:
The Measure of Things Logo
Step 1: What kind of measurement do you want to compare?
Length Icon (Ruler)
Length
Weight (Mass) Icon (Scale)
Weight
Speed Icon (Running Man)
Speed
Time Icon (Clock)
Time
Area Icon (Floorplan)
Area
Volume Icon (Beaker)
Volume
Computer Data Icon (Laptop)
Data

Click an icon above to choose a measurement type for comparison. This space will display an explanation as you move your mouse over the icons.
Unit

Amount




Equivalents in other units


How big is 30 square centimeters?

Sort Order:
Closest first | Highest first | Lowest first

It's about three-fifths as big as a Post-it® Note (3M).
In other words, 30 square centimeters is 0.56 times the size of a Post-it® Note (3M), and the size of a Post-it® Note (3M) is 1.8 times that amount.
(3M) (generically sticky notes, a.k.a. repositionable notes, a.k.a. repositional notes)
It's about half as big as a Playing Card.
In other words, 30 square centimeters is 0.54 times the size of a Playing Card, and the size of a Playing Card is 1.9 times that amount.
(ISO 216 B8 size)
It's about four times as big as a Secure Digital (SD) card.
In other words, 30 square centimeters is 3.9 times the size of a Secure Digital (SD) card, and the size of a Secure Digital (SD) card is 0.26 times that amount.
It's about six-and-a-half times as big as a Quarter.
In other words, 30 square centimeters is 6.491 times the size of a Quarter, and the size of a Quarter is 0.1541 times that amount.
(United States quarter-dollar coin) (a.k.a. Quarter dollar, a.k.a. Washington quarter, a.k.a. two bits)
It's about eight times as big as a Postage Stamp.
In other words, the size of a Postage Stamp is 0.1 times 30 square centimeters.
(average; United States dimensions)
It's about eight-and-a-half times as big as a Nickel.
In other words, 30 square centimeters is 8.491 times the size of a Nickel, and the size of a Nickel is 0.1178 times that amount.
(United States five-cent coin) (a.k.a. Jefferson nickel)
It's about ten-and-a-half times as big as a Penny.
In other words, the size of a Penny is 0.0952 times 30 square centimeters.
(United States one-cent coin) (a.k.a. Lincoln penny, a.k.a. Cent, a.k.a. One cent piece)