But it sounds like what you are saying is that a temperature of 1 °C = to 1.8°F and that is not correct since you have to add 32 to that, so 1°C = 33.8°F. Of course knowing that 0°C (the freezing point) is 32°F is useful and that 20°C = 68°F, you can use the 5°C = 9°F method to figure out what 5, 10, 15 or 25°C would be, but the actual conversion formula for any value is this:
Fahrenheit to Celsius Temperature in degrees Fahrenheit less 32, then multiply that result by 9 and divide it by 5 Example For the temperature of 68°F: 68 minus 32 = 36, multiply that by 5 and you get 180, finally divide that by 9 and you get 20 Celsius to Fahrenheit Temperature in degrees Celsius multiplied by 9, divide the result by 5 and finally add 32 Example For the temperature of 20°C: 20 times 9 = 180, divide that by 5 and you get 36, finally add 32 and you are back to 68 Of course I rarely do this any more since I usually have an Alexa or Google Home speaker nearby and all I have to do is ask either one to convert anything I want and if I am out and about I either have my iPhone with me or my Apple Watch on my wrist and I can ask Siri. This morning it is -23C° here and asking Google or Siri to convert it is much quicker than to multiply by 9 which ends up with -207, then dividing that by 5 which = -41.4 and adding 32 which gives me the final result of -9.4°F. Similarly using your method, Bill, and starting from the knowledge that 0°F = -17.8°C is also not an easy mental calculation, I would have to start with the difference between -17.8 and my actual temperature of -23 which is -5.2, then I would have to multiply that by your value of 1.8. I can of course use -5 for simplicity instead of -5.2 and multiplying 1.8 by 5 is of course easy because multiply it by 10 and you get -18 so half of that gives you -9 which is close enough to the accurate result of -9.4. ----Original Message----- From: [email protected] <[email protected]> On Behalf Of Bill Gallik Sent: January 6, 2022 8:19 PM To: viPhone 📩 <[email protected]> Subject: Re: Temperature Mispronunciation Oh boy, I could write a dissertation on this subject; but never fear I will restrain myself. First, I think it’s worth noting that 5 Centigrade degrees is equivalent to 9 Fahrenheit degrees. 1 degree Centigrade is the same as 1.8 Fahrenheit degrees - let’s say 2F degrees for simplicity’s sake. And, I will further elaborate. I should note I have a very dear friend in Peterborough ON. with whom I frequently converse, often sharing weather stats so I’ve made it a point to familiarize with the conversions between C and F. In pursuing this exercise, I stumbled on what I view as a remarkable relationship between Centigrade and Fahrenheit, what I refer to as the “Goldilocks Range.” While developing a spreadsheet to learn the temperature equivalents, I discovered the range from 16C/61F through 28C/82F have the phenomenon that the boundary temps are inverted digits; 16 is roughly the same as 61 and 28 and 82 are likewise nearly equal. I realize that some might consider 16C/61F through 28C/82F not an ideal “Goldilocks Temperature Range,” but I submit these temps should be reasonable boundaries to that range for the sake of mathematical discussion. I will say this was the first step in my better understanding the two scales. It’s just too bad that Fahrenheit has that darn 32F as the freezing point, that tends to complicate straight-forward conversions. But on the other hand, if not for that 32F degree glitch, the inverted temps would no longer apply. As I mentioned earlier, every 5 degrees C is exactly equal to each 9 degrees F, each degree C is thusly exactly equal to 1.8 degrees F. As such, 1C degree is 1.8F degrees. And then, of course, and so much more important in the far northern latitudes, there’s exact equality at -40 degrees - no matter which scale is employed, BRRRRRR! I certainly hope this has not been too tedious a read, obviously I’m quite enthralled with the entire matter. And, if I may say, I’m now able to convert between the two scales on the fly with a snap. That’s something I achieved for the sake of my Peterborough pal! (Smiles) * * * * * * * * * * * * - Bill from Ino, Wisconsin - "There are souls in this world which have the gift of finding joy everywhere" - "and of leaving it behind them when they go." - Fredrick Faber -- The following information is important for all members of the V iPhone list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your V iPhone list moderator is Mark Taylor. Mark can be reached at: [email protected]. 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