What a full cord measures
A full cord is 128 cubic feet of ranked and well-stowed firewood, including the air spaces within the stack. The familiar 8 ft by 4 ft by 4 ft stack is one full cord, but any compact stack configuration can be converted by multiplying its dimensions in feet and dividing by 128.
Face cords depend on piece length
A face cord describes an 8 ft by 4 ft face with a depth equal to the cut piece length. Because that depth varies, face cord is not a fixed volume. This calculator requires a reference face-cord depth and reports the equivalent only for that stated depth.
Stacking and cost limitations
Measure compact, parallel stacks and add identical stacks with the count field. The result is stacked volume, not solid-wood volume or weight; species, split size, straightness, moisture, bark, and stacking gaps change the actual wood content and heating value. Cost is a simple proportional estimate from the entered full-cord price.