Biochar Production Calculator

Estimate biochar yield and carbon sequestration from pyrolysis of wood, straw, or manure feedstocks.

Inputs

Feedstock (kg)

Pyrolysis Temperature (°C)

Feedstock Type

Tab to move between fields

Results

Biochar Yield

31.25 kg

≈ 8 gallons of milk

Carbon Sequestered

18.55 kg

≈ 9 bags of sugar

Yield Percentage31.25%

How to Use This Calculator

Enter feedstock weight in kg and select the feedstock type (wood, agricultural residue, etc.).
Set the pyrolysis temperature — higher temperatures (500–700°C) increase carbon stability but reduce yield.
Review Biochar Yield (kg), Yield Percentage (%), and Carbon Sequestered (kg).
Compare runs at different temperatures to find the optimal balance of yield and carbon sequestration.

How the result changes with Feedstock (kg)

Feedstock (kg)	Biochar Yield	Carbon Sequestered
10,001	3,125.31 kg	1,855.65 kg
35,001	10,937.81 kg	6,494.32 kg
65,000	20,312.5 kg	12,060.55 kg
90,000	28,125 kg	16,699.22 kg

What each input means

Feedstock (kg): Dry weight of feedstock material in kilograms
Pyrolysis Temperature (°C): Peak pyrolysis temperature — higher temps produce less but more stable biochar
Feedstock Type: 1 = Wood/woody biomass, 2 = Straw/crop residue, 3 = Manure/biosolids

How this is calculated

Worked example, using the default values

Identify Input Parameters
Feedstock (kg) = 100, Pyrolysis Temperature (°C) = 500, Feedstock Type = 1 = 3 input(s) provided
Calculate Biochar Yield
Biochar Yield
31.25 = 31.25
Calculate Yield Percentage
Yield Percentage
31.25 = 31.25

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