I believe there are factors you have to include in order to purchase the correct nichrome then deciding the length of it.....and if it would fit in a 1x1x1 smoker.

If you have the factory smoker, the current will be constant. If you have the proportional smoker, the result will vary.

Your battery. We all have different batteries, depending on what you purchased aftermarket.

For instance: I have 3800 mAh batteries. 1.89ohms=7.2v/3.8A So I need nichrome wire to be able to perform at 1.9ohms per undetermined length. Less than that, the nichrome is subject to breakage because it wouldn't be able to withstand the current supplied.

Now the nichrome.
Depending on the gauge, there is a specific resistance specified, per foot. The resistance of the wire decreases as the length is decreased, and increases as the length is increased. You don't want longer nichrome than you need, or it will barely heat up or heat up appropriately. The shorter it is, the hotter it will get.

32 gauge nichrome wire is rated at 10.66 Ohms per foot

I'm not sure how to actually equate the proper length of wire needed. I don't think it's as simple as dividing the total ohm's per foot by 12 inches.

Maybe someone else can take over, cause now I'm second guessing everything! lol I need to go back to school! lol