Free Firewood Cord Calculator
Last updated: October 26, 2026
Quick answer: Firewood is sold by a unit most buyers never measure — and that is exactly where the short delivery hides. This free firewood cord calculator does both jobs: measure a stack to find out how many full cords and face cords it really holds (including the face-cord trap, where a 'cord' turns out to be one row of 16-inch logs), and estimate how many cords you need for winter from your home size, climate, and how you burn. Everything runs in your browser; no signup, no app.
A full cord is a stacked pile 4 ft high x 4 ft deep x 8 ft long = 128 cubic feet, including the air gaps between logs. A face cord (also called a rick) is only the front row — 4 ft high x 8 ft long — so it is NOT a full cord: at 16-inch logs it holds about 42.7 cu ft, one third of a cord. Weight ranges are rough: seasoned hardwood runs about 3,000–4,400 lb per cord, softwood about 2,200–3,500 lb, and green wood weighs much more. Measure only after stacking; a loose pile looks bigger than the cord it stacks into.
✓ Free forever · ✓ No signup · ✓ Tool inputs stay in your browser — never sent to our servers.
How to Use the Firewood Cord Calculator
- Choose your mode: Measure a stack when wood is already delivered or stacked, or How much wood do I need for winter? when you are ordering ahead. The inputs switch for you.
- For a stack, measure the pile after stacking: length in feet, height in feet, and depth in inches. A standard full cord is 8 ft long, 4 ft high, and 48 in deep — but any dimensions work, because the math is length x height x depth, divided by 128.
- Set the log length for the face-cord conversion. This matters: a face cord is one 4 x 8 ft row, so 16-inch logs make a 42.7 cu ft face cord (one third of a full cord) while 24-inch logs make a 64 cu ft face cord (half a full cord). Calculators that always divide by three get the 24-inch case wrong.
- Tick loose pile only if the wood has not been stacked yet. A loose pile takes about 30% more room than the same wood stacked, so the calculator divides the loose volume by 1.3 to estimate the stacked volume — treat that number as approximate, and re-measure once stacked before paying by the cord.
- For winter need, enter the square footage you actually heat with wood (not the whole house if the stove heats two rooms), your climate, and how you burn. A primary-heat home in a cold climate needs roughly 2–3 cords per 1,000 sq ft; a mild climate needs 1–2; supplemental burning needs about 40% of the primary figure; occasional fires need about half a cord to a cord for the season.
- Enter a price per full cord if you have a quote, and press Calculate firewood. Read cords, face cords, cost, and — for stacks — the verdict on whether the pile is a full cord, short of one, or more than one. Press Copy result to take the numbers to your notes or your supplier.
Why Use Our Firewood Cord Calculator?
- Stack mode and winter mode in one page — most thin calculators do stack math only, leaving the 'how much should I order?' question to blog posts. Both answers live here.
- Face cords by actual log length — the conversion uses your log length instead of hardcoding one third, so 24-inch logs correctly come out at half a cord per face cord, not a third.
- The seller check, stated plainly — the result says whether a stack is about a full cord, short of one, or more than one, so a delivery quoted as 'one cord' can be checked with a tape measure before you pay.
- Loose-pile adjustment — a loose pile is divided by 1.3 to estimate stacked volume, with the estimate clearly labeled as approximate, because paying cord prices for loose-pile volume is the other classic overcharge.
- Cost line in both modes — enter your price per full cord and the stack cost or the winter-season cost appears beside the volume, so the quote can be compared per cord, not per truckload or per 'rick'.
- Weight range for hauling — seasoned hardwood and softwood weight ranges per cord, so a trailer or truck load can be sanity-checked before it is loaded (green wood weighs far more — do not plan a haul on seasoned numbers).
Common Use Cases
- Checking a delivery quoted as 'one cord': The truck leaves a stack 8 ft long, 4 ft high, and 16 in deep. That is 8 x 4 x (16/12) = 42.7 cu ft = 0.33 cords — one face cord, not a full cord. If you paid full-cord price, you are owed two more face cords or a two-thirds refund. Measure before the driver leaves, while the stack is still countable.
- Ordering for a 1,500 sq ft primary-heat home in a cold climate: 2–3 cords per 1,000 sq ft gives 3–4.5 cords for the season. At $300 per cord that is $900–$1,350 for the winter. Ordering 4 cords covers the middle of the range with a little spare; ordering 3 risks a mid-January top-up at peak prices.
- Comparing a face-cord quote to a full-cord quote: Seller A offers 'cords' at $140; seller B offers full cords at $320. If seller A's 'cord' is a 16-inch face cord, its full-cord equivalent is $140 x 3 = $420 — seller B is cheaper. The calculator's face-cord line exists for exactly this comparison: convert both quotes to price per full cord before choosing.
- Sizing a woodshed before the season: Four cords need 4 x 128 = 512 cu ft of stacked storage — for example, two rows 16 ft long, 4 ft high, and 4 ft deep. Measure the shed first: a shed that fits three cords cannot hold a four-cord order, and wood stored outside uncovered seasons slower and burns dirtier.
Firewood Cord Calculator vs Alternatives
- Thin stack-only cord calculators (most of the current top 9): They divide a stack by 128 correctly, and several do it cleanly. What they do not do is winter-need planning, face cords by log length, or the loose-pile adjustment — so the buyer who needs to order, compare quotes, or check a delivery still needs three more pages. This page covers the stack, the season, the face cord, and the quote comparison in one place.
- Firewood retailer calculators: A retailer's calculator is built to sell that retailer's wood: the delivered price is the point, and the 'cord' it prices may be a face cord in disguise. This page has no wood to sell, so its cord is the 128 cu ft legal measure and its face-cord math is shown, not hidden behind a checkout button.
- Government and extension guides (county and university pages): County weights-and-measures pages and university extension guides are the most trustworthy sources for what a cord legally is — this page uses their definition (128 cu ft, NIST Handbook 130). A guide cannot do your arithmetic, though: for a 12 x 4 x 2 ft stack, or a 1,500 sq ft house in a cold climate, you still need a calculator, and this page is that calculator next to the guide.
- Tile and concrete calculators (ToolNest's companion tools): Those tools answer the material question for tile and concrete: coverage, boxes, yards, bags. If your question is firewood — cords, face cords, winter supply — this firewood calculator is the right one; if your question is tile or concrete, use those calculators.
Most firewood calculators answer one question — how many cords is this stack? This page answers that question, plus the two questions buyers actually lose money on: is this 'cord' really a cord, and how many cords should I order for winter?