this post was submitted on 22 Aug 2023
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[–] Bishma@discuss.tchncs.de 3 points 1 year ago (1 children)

The easy but not quite right conversion from C to F is to double it, then add 30.

F to C is subtract 30 and divide by 2.

[–] Hawk@lemmy.dbzer0.com 3 points 1 year ago (1 children)

I've always learned 32, not 30

[–] Bishma@discuss.tchncs.de 9 points 1 year ago

When doing a simple double/half, 30 will give less average error between 0° and 100°C. Though the real formula is C * 9 / 5 + 32 = F