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> Fahrenheit to Celsius conversion
weatherwatchsout...
post Sep 12 2008, 07:32 PM
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Here is the method how to convert Fahrenheit to Celsius and vice versa for those who don't know.

First Fahrenheit:
Assume F=Fahrenheit and C=Celsius for both these formulas.

Formula for converting Fahrenheit to Celsius:

(F-32)*(5/9)

Formula for converting Celsius to Fahrenheit:
C(9/5) + 32

So for instance, say you want to convert 90 degrees Fahrenheit to Celsius

First start with the formula: (F-32)*(5/9)
Next substitute 90 for F: (90-32)*(5/9)
Subtract within the parthenthesis: 58*(5/9) _
Multiply 58 by 5 then divide by 9: 290/9=32.2=32 C
90 F = 32 C

Converting 10 C to Fahrenheit

First start with the formula: C(9/5) + 32
Substitute 10 for C: 10(9/5) + 32
Next multiply by 9 divide by 5: 90/5=18
Add 32 to 18: 18 + 32=50 F
10 C = 50 F

These conversions come in real handy when working with temperature readings that use the Celsius scale and not the Fahrenheit scale.

This post has been edited by weatherwatchsoutheasternPA: Sep 12 2008, 07:36 PM


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Removed_Member_Bl1zzard_*
post Sep 12 2008, 08:06 PM
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To add to this, a simple way to do the conversion in your head if you don't have calculator handy:

From C to F: 25 degrees Celsius for example:
Take the number Celsius and divide it by 10, just move the decimal one place to the left. (25/10=2.5, simple)
Multiply that number by 8
(2.5*8=20)
Add the total to the original Celsius number
(20+25=45)
Then add 32
(45+32=77)
That's the temperature in Fahrenheit
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From F to C: 77 degrees Fahrenheit for example:
Subtract 32 from the Fahrenheit temp
(77-32=45)
Divide that number by 9
(45/9=5)
Multiply that number by 5
(5*5=25)
That's the temperature Celsius
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mmi16
post Sep 15 2008, 11:32 PM
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Punch the F/C button on an electronic thermometer!


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Removed_Member_Bl1zzard_*
post Sep 24 2008, 02:04 PM
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Why was this created in the first place?

This post has been edited by Bl1zzard: Sep 24 2008, 02:05 PM
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mmi16
post Sep 24 2008, 10:46 PM
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QUOTE(Bl1zzard @ Sep 24 2008, 04:04 PM) *
Why was this created in the first place?

Why the Fahrenheit scale was adopted I haven't at clue.

Celsius is simple....100 steps between the freezing point of water and the boiling point. Very Logical.


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Removed_Member_Bl1zzard_*
post Sep 24 2008, 11:01 PM
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QUOTE(mmi16 @ Sep 25 2008, 12:46 AM) *
Why the Fahrenheit scale was adopted I haven't at clue.

Celsius is simple....100 steps between the freezing point of water and the boiling point. Very Logical.


See, when I first wrote that comment I was afraid it would be taken this way. That's why I edited it. Note that it says "edited at ..." I thought I edited in the word "thread" so as to clarify my question. I was wondering why the person started this thread, not why the scales were used. Apparently I pressed the wrong button when I edited it or something thus leading to this answer.

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mmi16
post Sep 25 2008, 12:14 AM
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QUOTE(Bl1zzard @ Sep 25 2008, 01:01 AM) *
See, when I first wrote that comment I was afraid it would be taken this way. That's why I edited it. Note that it says "edited at ..." I thought I edited in the word "thread" so as to clarify my question. I was wondering why the person started this thread, not why the scales were used. Apparently I pressed the wrong button when I edited it or something thus leading to this answer.

The 'why' from the thread is undoubtedly, someone needed an answer for their home work!

If you are using internet forums as your source of knowledge for school projects....YOU ARE IN TROUBLE.....DEEP DARK TROUBLE!


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wxdude1964
post Sep 25 2008, 01:42 AM
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QUOTE(mmi16 @ Sep 25 2008, 02:14 AM) *
The 'why' from the thread is undoubtedly, someone needed an answer for their home work!

If you are using internet forums as your source of knowledge for school projects....YOU ARE IN TROUBLE.....DEEP DARK TROUBLE!


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