I try to cook with weights rather than measures wherever possible.  It’s more accurate, it’s hugely helpful with items such as flour (the whole dip and sweep thing works great I know) – but it’s so much easier to get a cheap digital scale and be sure….I mean really sure….exactly what you’re getting.  That being said I know not everyone has a scale, or cares really that much.  Anyway, here’s some general info on what equals what….

US Dry Measurement Equivalents
1 Cup is
8oz
16 tablespoons
48 teaspoons

1/2 Cup is
4oz
8 tablespoons
24 teaspoons

1/3 Cup is
2.66oz
5 tablespoons and 1 teaspoon
16 teaspoons

1/4 Cup is
2oz
4 tablespoons
12 teaspoons

1/8 Cup is
1oz
2 tablespoons
6 teaspoons
1 standard coffee scoop

1 Tablespoon is
3 teaspoons

A Pinch is
1/8 teaspoon

A Dash is
1/16 teaspoon

US Liquid Measures

1 Pint is
2 Cups
16 fluid oz

1 Quart is
2 Pints
4 Cups
32 fluid oz

1 Gallon is
4 Quarts
16 Cups
128 fluid oz

Metric to US Conversions

1 ml = 1/5 teaspoon
5 ml = 1 teaspoon
15 ml = 1 tablespoon
30 ml = 1 fluid oz
100 ml = 3.4 fluid oz
240 ml = 1 cup
1 liter = 34 fluid oz = 4.2 cups = 2.1 pints = 1.06 quarts = .26 gallons
1 gram = .035 oz
100 grams = 3.5 oz
500 grams = 1.10 pounds
1 kg = 2.205 pounds = 35 oz

US to Metric Conversions

1/5 teaspoon = 1 ml
1 teaspoon = 5 ml
1 fluid oz = 30 ml
1/5 cup = 50 ml
1 cup = 240 ml
2 cups (1 pint) = 470 ml
4 cups (1 quart) = .95 liter
4 quarts (1 gallon) = 3.8 liters
1 oz = 28grams
1 pound = 454 grams

Pan Equivalents

9 inches x 13 inches = 22 x 33 cm
8 inches x 8 inches = 20 x 20 cm
9 inches by 5 inches (loaf pan) = 23 x 12 cm
10 inch cake pan  = 25 cm pan
9 inch cake pan = 22 cm pan

Oven/Heat Conversions

European Standard
225º F  =  107º C  = Gas 1/4 =  Very Slow/Very Low
250º F  =  121º C  = Gas 1/2 =  Very Slow/Very Low
275º F  =  135º C  = Gas 1   =  Cool/Slow/Low
300º F  =  149º C  = Gas 2   =  Slow/Low
325º F  =  163º C  = Gas 3   =  Very Moderate/Moderately Slow/Warm
350º F  =  177º C  = Gas 4   =  Moderate/Medium
375º F  =  191º C  = Gas 5   =  Moderate/Moderately Hot
400º F  =  204º C  = Gas 6   =  Moderately Hot
425º F  =  218º C  = Gas 7   =  Hot
450º F  =  232º C  = Gas 8   =  Hot/Very Hot
475º F  =  246º C  = Gas 9   =  Very Hot

French Measurement
Thermostat measurement (abbreviated Th)
Th 1 equals 30º C – increases 30º C per each whole number

German
Stufe (Step) measurement
Stufe 1/2 is 125º C
Stufe 1 is 150º C – increses 25º C per step thereafter
Stuge 7 is 300º C

Other Useful Measures

1 Stick of Butter  =   1/2 Cup  =  4 oz
4 Sticks of Butter =   1 pound  =  16 oz

Average Lemon  =  1 to 3 tablespoons juice  =  1 to 1.5 teaspoons zest

1 oz of chocolate = 1/4 cup grated chocolate

6 oz of chocolate chips = 1 cup of chips