calculation for wood

[Chrism]

Is there a calculation I can use by measuring a tree length width to get roughly how many cords of wood I will get from them?
Thanks

 

[CentralCT]

http://elkhorn.unl.edu/epublic/live/g1554/build/g1554.pdf

Table II shows "Firewood cutter’s rule of thumb".
Tree Size Number of Trees
(diameter at breast height) Per Cord
5 46-55
6 21-33
7 14-18
8 9-14
9 6-9
10 4-6
16 2
22 1

 

[corrupt]

Well there you go perfect answer in under 20min, dont ya love the internet

 

[Wood Duck]

Another way to calculate is to measure the volume of solid wood in the log, then find the number of cords based on the estimated average wood volume of 85 cubic feet of solid wood in a cord of firewood. A cord is 128 cubic feet of stacked splits, but that is only around 85 cubic feet of wood, the rest is air.

The volume of wood in a round log is the cross sectional area (area of the round end) x the length. The area of one end is pi x radius x radius. To be most accurate I'd calculate the area of each end and average the two, then multiply by the length.

It sounds complicated, but really just requires measuring the diameter of each end and the length of the log.