Wood Chip Fuel Calculator

Calculate the volume and weight of wood chips needed for a given heating requirement.

Heating Need (MMBtu)

Chip Moisture (%)

Boiler Efficiency (%)

Tab to move between fields

Chip Volume

20.66 yd³

≈ 11 hot tubs

Chip Weight

6.4 tons

≈ 12 grand pianos

Est. Fuel Cost$278.40

How to Use This Calculator

Enter your annual heating need in MMBtu.
Set chip moisture content (%) — green chips run 40–50%, air-dried chips 20–30%.
Enter boiler efficiency (%) for your system.
Review Chip Volume (yd³), Chip Weight (tons), and Estimated Fuel Cost ($) for the season.

How the result changes with Boiler Efficiency (%)

Heating Need (MMBtu): Total seasonal or annual heating requirement in millions of BTU
Chip Moisture (%): Wet-basis moisture content of wood chips (green chips: 40-55%, seasoned: 20-30%)
Boiler Efficiency (%): Overall efficiency of the wood chip boiler system (typical: 65-85%)

Identify Input Parameters
Heating Need (MMBtu) = 50, Chip Moisture (%) = 35, Boiler Efficiency (%) = 75 = 3 input(s) provided
Calculate Chip Volume
Chip Volume
20.66 = 20.66
Calculate Chip Weight
Chip Weight
6.4 = 6.4

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