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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...

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Temperature Unit Conversions

There are four basic temperature scales in use: Fahrenheit, Celsius, Rankine, and Kelvin. The Fahrenheit scale defined water freezing at 32 degrees and boiling at 212 degrees. Celsius defines water freezing at 0 degrees and boiling at 100 degrees. Kelvin defines zero degrees at absolute zero (no thermal motion), and uses the Celsius degree as an increment. Rankine defines zero as absolute zero (no thermal motion) like with Kelvin, only Rankine uses the Fahrenheit degree increment. Temperature conversions

Here are the formulas for converting between the units.

Celsius to Fahrenheit	Fahrenheit to Celsius
ºC = ºF - 32 1.8	ºF = (1.8 ºC) + 32
Fahrenheit to Rankine	Celsius to Kelvin
ºR = ºF + 459.67 -40ºC = -40ºF	K = ºC + 273.15

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