Buying firewood is confusing because sellers measure it in cords, face cords, and loose piles, and those words do not mean the same thing. This free firewood cord calculator turns your stack measurements into plain numbers, so you know what you really have.
A full cord is a standard volume: 128 cubic feet of stacked wood. The classic stack is 8 feet long, 4 feet high, and 4 feet deep. Multiply those three numbers and you get 128. Enter your own stack length, width, and height, and the tool does the same math for any size.
A face cord is smaller. It is one row of a full cord: 8 feet long and 4 feet high, but only as deep as one piece of wood. With 16-inch pieces, a face cord holds about one third of a full cord. With longer pieces, it holds more. That is why the tool asks for your piece length.
Measure your stack carefully. Measure the outside of the pile, not the gaps between logs, and measure height at a few points if the pile is uneven. Loosely thrown wood takes up more space than neatly stacked wood, so a loose pile of the same outside size holds less real wood.
If you add a price per full cord, the tool also estimates the total cost. That helps you compare sellers fairly: a cheap price per face cord can still be expensive per full cord once piece length is taken into account.
This calculator gives an educational estimate only. Real quantities depend on how tightly the wood is stacked, the wood type, moisture, and your local seller and rules. Confirm with your supplier before buying or building, and check local rules about moving firewood, which can spread pests.
Try it with the classic 8 by 4 by 4 stack first, then measure your own pile and see what you really have. It is free and needs no sign-up.