A recent thread by Michael Ohene reminded me that I've been meaning to post a conversion table I worked up last year for the purpose of adding dual measures to my personal cookbook (not published, just something I share with family and friends). There's a similar thread Chris Amirault started in 2011, but that was focused on testing converted recipes, so I felt this older thread was more appropriate for posting my table. Notice, though, that the latter thread includes links to other converters, including a spreadsheet by Martin Lersch.
One reason I did this table was that I found the online converters a PITA to use, as you have to query a database with a lookup box. There are a few tables one can skim by eye, but they're limited in scope. For that matter, the databases also missed a lot of things. So I built this table from the ground up, measuring everything myself (many times). No doubt there are a few errors (and some measures depend on technique), but on the whole I thought it useful enough to warrant posting. So folks will know what to expect, I'm inserting a picture of the table, followed by pdf's which can be downloaded and printed. One pdf looks like the picture, the other is four regular sized pages.
ETA: To clarify, an American cup is 236.6 milliliters. A tbsp is 1/16th of this, generally rounded for conversion purposes to 15 milliliters; by extension, this means a tsp is 5 milliliters. In fact, except for large quantities, I convert water and similar liquids at 240 grams per cup, and use weight not volume; dairy and oil, etc. I do by true weight. Here's a sample recipe which illustrates how I use this table: Trifle.pdf.
