Firewood calculator
Measure the stack’s length, height and the length of the logs. Use it to check a delivery or to work out how much wood you have.
Measuring in feet and inches? Use the US version
Stacked volume
0.75 m³
- Loose volume it equals
- 1.13 m³ (about 1.1 bulk bags)
- Value at your price
- 135 in your currency
How it works
Stacked volume is simply length × height × depth, with the depth being the length of the logs. A stacked cubic metre, sometimes called a stere, is a neat pile 1 metre on each side.
Logs are usually sold loose, thrown into a bulk bag or a trailer, and loose logs take up more room because of the gaps. A common rule is that 1 stacked cubic metre equals about 1.5 loose cubic metres, so the calculator converts to that for comparing with prices.
Example
With stack length 3 m, stack height 1 m, log length (stack depth) 25 cm, the answer is 0.75 m³.
Tips before you buy
- Ask whether a price is for a loose or a stacked cubic metre. Loose is the usual way logs are sold, and it’s about two-thirds as much wood.
- Burn logs with a moisture content under 20%. In the UK, look for the Ready to Burn mark.
- Stack logs off the ground with the top covered and the sides open to the air.
Common questions
How much is a cubic metre of logs?
A loose cubic metre is about two-thirds of a stacked one. A pile 3 m long, 1 m high with 25 cm logs is 0.75 stacked m³, or about 1.1 loose m³.
What is a bulk bag of logs?
A builder’s bag that holds roughly 1 loose cubic metre, though sizes vary by supplier.
How many logs do I need for a winter?
It depends on your stove and how much you use it. Occasional evening fires might use 2 to 3 loose cubic metres. Heating mainly with a stove can take 6 or more.