Diapers per meter (lil more then a yard)

Ever sit there starting at a fabric order wondering "how much do I need". Well here is my break down for you if your making a butterfly fitted (the diaper I most recommend making). 

Flannel:
If your making a butterfly fitted from flannel (which tends to be more narrow then other fabrics) I can get 4 diaper cuts per meter (2 across, 2 down) with a little left over.  So out of 10 meters I get 14 butterfly Fitted's that are 3 layers thick.  (That's 9 layers folded). 
20 meters flannel = 28 diapers

Fleece, Terry and CV:
Using hemp or bamboo-rayon fleece (HOBF, SHOBF) paired with cotton fleece, terry or cotton velour (CV) I need one layer each.  Its wider then the flannel and I can get 3 across.  So 1meter hemp or bamboo-rayon fleece + 1 meter CV, terry or cotton fleece = 6 butterfly Fitted's (folded that's 3 layers hemp or bamboo-rayon, 3 layers CV, cotton fleece or terry),
4 meters fleece + 4 meters CV, terry or cotton fleece = 24 diapers (5 each = 30 diapers)

Fleece and Flannel:
This one is more tricky (math wise).  Ok so if you want to pair 1 layer hemp or bamboo-rayon fleece with 1 layer flannel.  Then 2 meters hemp or bamboo-rayon fleece is 12 cuts and 3 meters flannel is 12 cuts.  1 cut each = 12, 2 layered diapers (folded that's 3 layers hemp or bamboo-rayon fleece with 3 layers flannel).  
4.5 meters fleece + 7 meters flannel = 27 diapers

* this applies to solids, vertical prints and universal prints.