Standard Measurements
1 part = any equal part
1 dash/splash = 1/32 ounce
1 teaspoon (tsp) = 1/8 ounce
1 tablespoon (tblsp) = 3/8 ounce
1 pony = 1 ounce
1 jigger/bar glass = 1 1/2 ounces
1 shot (*) = 1 1/2 ounces
1 snit = 3 ounces
1 wineglass = 4 ounces
1 split = 6 ounces
1 cup = 8 ounces
1 pint (pt) = 16 ounces
1 quart (qt) = 32 ounces
1 fifth = 25.6 ounces (1/5 gallon)
1 gallon (gal) = 128 ounces

Metric Conversions
1 fluid ounce (oz) = 29.573 milliliters = appx. 3 centiliters (cl)
1 quart (qt) = 9.4635 deciliters
1 gallon (gal) = 3.7854 liters
1 milliliter (ml) = 1/30 ounce
1 centiliter (cl) = 1/3 ounce
1 deciliter (dl) = 3 1/2 ounces
1 liter (l) = 34 ounces