Estimate how long your firewood will last for a campfire, fire pit, wood stove, fireplace, survival heat, or outdoor cooking. This firewood burn time calculator factors in wood amount, wood species, moisture level, fire size, wind, temperature, stove efficiency, and reserve wood.
Wood amount:
Enter your firewood amount as bundles, logs, pounds, kilograms, face cords, or cords. The calculator converts it into an estimated usable wood weight.
Burn rate:
You can use the automatic estimate or enter your own burn rate. Manual burn rate is useful if you already know how fast your stove, fire pit, or campfire uses wood.
Conditions:
Wood species, moisture, fire size, wind, temperature, fire type, and reserve percentage are used to estimate a more realistic burn time.
A firewood burn time calculator helps estimate how much wood you need for camping, outdoor cooking, backyard fire pits, cabin heat, emergency warmth, or overnight planning.
Actual burn time depends on wood size, airflow, fire tending, coal bed, stove design, wind, moisture, wood density, and how hot you want the fire.
This calculator uses a practical firewood estimate:
Burn Time = usable firewood weight ÷ adjusted burn rate
A typical bundle may last around 1 to 2 hours in a medium open campfire, but burn time depends on wood type, size, moisture, wind, and how large the fire is.
Dense hardwoods such as oak, hickory, maple, and similar woods usually burn longer than softwoods like pine because they are denser.
Wet wood may burn poorly and waste heat evaporating moisture. It can smoke heavily and may not provide useful heat even if it lasts longer physically.
For a simple evening campfire, many campers bring 2 to 3 bundles. Cold, windy, long, or cooking-focused fires may need more.