Quandaries and Queries Name: Ron Who is asking: Other Level: All Question: Is the volume of a home appliance (e.g. fridge or freezer) calculated in a different way? I am planning to replace both my fridge and my freezer but I'm unable to determine what size replacement to get. For example, one company descibes their fridge as being 32"(L) x 30"(W) x 66" (H). I converted those measurements to feet (2.67 x 2.5 x 5.5) and I calculate the fridge to be 36.7 cubic feet. However, the company says the fridge is 18 cf. Which is correct? Hi Ron, Each manufacturer measures the capacity of its fridge in different ways. The number 18 (cu.ft.) refers to the 'usable' interior volume. This number is almost meaningless by itself (as is your number 36.7). Your best bet is to get ahold of CONSUMER REPORTS (most public libraries will have recent issues); they describe usable capacity in a uniform way so that you can compare different brands. They also describe how flexible the space is, so you can see if it satisfies your specific needs. Chris Go to Math Central