A chart of bar drink measurements (drops, jiggers, teaspoons, pints, fifths, quarts) and their equivalents in ounces.

A simplified converter, converts drops, dash, pinch, milliliters/cc, deciliter, fluid dram, teaspoon ( US), teaspoon (UK), tablespoon ( US), tablespoon (UK), fluid ounce ( US), fluid ounce (imperial), cups, cubic inch, gill ( US), gill (UK), pint ( US), pint (UK), quarts ( US), liters, gallons ( US), gallons (UK)

A  highly -accurate conversion tool which allows you to convert weights, volumes, metric, US for specific food items.

A collection of general metric conversion calculators which include:

• Distance And Length - converts meters, millimeters, inches, feet, yards, miles, kilometers, centimeters
• Area - converts square meters, square millimeters, square inches, square feet, square yards, square miles, square kilometers, square centimeters
• Volume - converts liters, fluid ounces, quarts, gallons, cubic feet, cubic yards, cubic meters
• Weights - converts kilograms, ounces, pounds, English tons, metric tons

This is a simplified system that converts grams to cups, drops, etc base on an average gram weight.  The page also contains a helpful chart.

Chart lists standard U.S. and U.K. volume measurements with equivalent U.S. unites and metric units