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Copyright: 1996 - 2024 Webmaster:
Kirt Blattenberger,
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
AirplanesAndRockets.com
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Sub-Header - RF Cafe
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Area Conversions |
Area is commonly
described as the extent of a two-dimensional surface enclosed within a specified boundary. Calculating area is
fairly straight forward for well-defined regions, like regular polygons and symmetrical circles and ellipses.
Finding the area for irregular regions requires the application of calculus. In fact, it is with the assistance of
calculus that even a common formula like for the area of an ellipse is derived.
Below is a table of commonly used area conversion factors.
Standard units = Square centimeter (cm2) for metric Square
inch (ft2) for SAE
1 in2 = |
1 |
6.944 · 10-3 |
6.452 |
6.452 · 10-4 |
1.273 · 106 |
1 ft2 = |
144 |
1 |
929.0 |
9.290 · 10-2 |
1.833 · 108 |
1 cm2 = |
0.1550 |
1.076 · 10-3 |
1 |
10-4 |
1.974 · 105 |
1 m2 = |
1550 |
10.76 |
104 |
1 |
1.974 · 109 |
1 cir mil = |
7.854 · 10-7 |
5.454 · 10-3 |
5.067 · 10-6 |
5.067 · 10-10 |
1 |
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