this post was submitted on 19 Jun 2023
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As someone who moved to the US later in life, I learned to use fahrenheit because there's no way to talk to anyone about the weather or cooking otherwise.
If you need to do the same one day, don't bother trying to convert in your head. Just learn the numbers conversationally. Familiarize yourself with how the weather feels with the number the weather app shows.
I can't convert at all but I can use both C and F in conversation because one rarely needs exact numbers anyway. You learn the ballparks pretty quick.
Isn't Fahrenheit a "feel" temperature unit anyway? Once you need precision (science), even Americans switch to Celsius/Kelvin.
FWIW Fahrenheit has more precision for the temperatures you most commonly feel. Day-to-day you're likely to feel temps between 10-32°C (range of 22°), which is 50-90°F (range of 40°). It might not seem like a big deal, but I can tell a difference in my house when setting my thermostat from 68°F to 69°F; conversely, if I turn my thermostat to C mode both values get rounded to 20.
But yes, as an American, I think of CPU temps in terms of C, I know water freezes at 0°C/32°F, I know water boils at 100°C but have never committed to memory what it is in F, and in chem classes we always use C/K.
Can you set your thermostat to 68.5°F? I can set mine to 21.5°C, does that mean I have more precision? This precision argument is nonsense.
Yeah, if it can do 21.5 then that would be the same amount of precision.
Thermostats aren't the only place this shows up tho. There was the infamous iphone weather app quirk where the F temp was always derived from the C temp, and only used an integer value under the hood for C, so after converting and rounding, it would never show 69F.
I was responding to someone who said F had less precision, but for the temperatures most relevant to humans, it's deliberately designed to have more precision.