Metric Conversions 101

So, I'll leave it up to you to find a conversion page online that you prefer, but for the math-prone among us (me) and for the sake of not having to put a metric and english unit on every recipe while still acknowledging that 98% of the world uses metric, I have included this page of simple conversion factors.

As for what you should set your stove on for instructions like "medium-high", I'm not even going to go there.

Basic Conversions for Cooking
2.2 pounds = 1 kg
1 cup = 8 ounces = 240 mL
1 teaspoon = 5 mL
1 tablespoon = 15 mL

Temperature Conversions
I hate temperature conversions, so I've been trying to pretend that if I just ignored them, they would go away, everyone would convert to Kelvin, and anyone that didn't would suddenly become Zen masters of estimating oven heats.  Unfortunately, all you Celcius users have it the hard way.  Should I ever move to a country that uses Celsius, my Fahrenheit-using brain will have it easy, at least in terms of mentally converting the weather report into something I can understand, which, of course, is the true purpose of math.  (Not that this ever stopped me from becoming a pro at guesstimating the last time I was in a metric country, resulting in such comments as "Ahh, it's a chilly day!  I bet it's about 18, but with the wind chill it feels like 12!!"  Yes, half-assery is alive and well.)

Method A) The Crap Method

Degrees Celcius = Degrees Fahrenheit -32
                            -------------------------
                                           1.8

or

Degrees Fahrenheit = 1.8 x Degrees Celcius + 32

I told you I had it easy.

Method B) Half-Assery
Common Cooking Temperatures in Fahrenheit and their Rough Celcius Equivalents:

500F (broil)=260C
425F=220C
400F=205C
350F = 175C
325F= 165C

Rest assured, I actually did the math on these.  Yes, I took one for the team, thereby proving that not all Americans are obnoxious and self-centered. 

Other English System Nonsense
3 teaspoons per 1 tablespoon
3 tablespoons in 1/4 cup
2 cups in 1 pint
2 pints in 1 quart
4 quarts in 1 gallon

"To taste" means "however the much you want to put in, life is a journey not a destination."
"A pinch" means "I am concealing important information from you so that Nonna's secret recipe will be impossible to reproduce completely accurately.  Add extremely tiny amounts by trial-and-error until it tastes good to you.  See 'to taste'. "
"Until done" means, "I am a 1950's housewife who literally cooks three homemade meals a day and has been cooking since I was eleven.  Therefore in my mind it is redundant and insulting of your intelligence to tell you the exact time a cake gets done."

Abbreviations
C. = cup
tsp.= teaspoon
TB = tablespoon
oz. = ounce
lb. = pound

In general, 1 ounce = 30 mL.  So, if you have a recipe that calls for a 14 ounce can of evaporated milk, you need 420mL. 

Again, for the math-prone, or those that don't want to run to the internet everytime they need to convert some part of a recipe, here is a simple method for converting units, using the above example.

Have: cans that come in mLs.
Need: to find out how many mLs "14oz." is.

(14 ounces)(30 mL)   =
                  ---------
                  1 ounce

14 times 30, cancel the ounces, leaving us with 420mL.

I like to use this method because I think it's simpler than memorizing huge lists of conversion factors.  (IE 2.2 lbs in 1 kg, 1 lb is 0.4545 kg and on and on and on...) 

Thereby proving that there is actually a point in taking Chemistry Part One: A New Hope and Chemistry Part Two: The Phantom Menace in college, even if you are not going to be a chemist when you grow up.

Things I will never post on this page: Organic Chemistry: The Empire Strikes Back.  In a nucleophilic back attack.  Make your own inferences about that one, my Organic Chemistry professor certainly did.  Because nothing aids intense scientific learning concentration like raunchy jokes.