# TEMPERATURE CONVERSION

General information on
temperature

Fahrenheit:  Under standard conditions water boils at 212
deg
. and freezes at 32 deg.

Water boils at 100 deg. and freezes
as 0 deg.

Kelvin:  Water boils
at 373.15 K and freezes at 273.15 K.

-40 degrees Celsius
is the same as -40 degrees Fahrenheit *

* Thanks to Chris Johnson for
pointing this out.

How to convert from Celsius
to Fahrenheit and vice versa

To convert Celsius into Fahrenheit

Multiply by 9, divide by 5 and add 32.

To convert Fahrenheit into
Celsius

Subtract 32, multiply by 5 and divide by 9

Neal Bellard
has kindly sent in an even easier way to convert these –

Why use 3 steps to convert degrees C to
F and vice versa?

For Celsius
to Fahrenheit

32.

For Fahrenheit
to Celsius

Subtract 32 then divide by 1.8.

This is the easiest and quickest way of all to convert
Centigrade to Fahrenheit. This method gives you more or less the correct answer.

to Fahrenheit –
Just double it and add 30!

Example

Double it = 30

Add 30 = 60 deg.  Fahrenheit

For Fahrenheit
to Celsius

Just take away 30 and then half it.

Ella Terrence

Thought I might just mention a way that I have used
for many years and found accurate.

Fahrenheit conversion –

– then minus 10%

– easy!

Example

x 2 = 80

then – 10% = 72

then plus 32 = 104 Fahrenheit

This was learned at school back in the early 70’s and
works well for C to F conversions.

Fahrenheit to Centigrade conversion a bit more
fiddling around – done in reverse to nearest round figures.

Mrs Johanne Norman

QUICK REFERENCE TABLE

Conversion table
Celsius – Fahrenheit

 CELSIUS/CENTIGRADE FAHRENHEIT -40 deg. -40 deg.Thanks Chris Johnson -17.8 deg. 0 deg. – 10 deg. 14 deg. 0 deg. 32 deg. 5 deg. 41 deg. 10 deg 50 deg. 15 deg. 59 deg. 20 deg. 68 deg. 25 deg. 77 deg. 30 deg. 86 deg. 35 deg. 95 deg. 40 deg. 104 deg. 50 deg. 122 deg. 60 deg. 140 deg. 70 deg. 158 deg. 80 deg. 176 deg. 90 deg. 194 deg. 100 deg. 212 deg.

Tip from W Cristo, Jr.,
M..D

An easy way to remember F vs C for
travel and practical purposes:

 Celsius Fahrenheit 0 32 freezing 10 50 chilly 20 68 average temp, so so 30 86 too hot

A nameless contributor sent in the
following as an easy way of remembering and couple of the
temperatures.