Biogas, Biomethane & RNG Yield Calculator

Input Parameters
Feedstock
Feedstock quantity
tons/day
Total Convertible Volatile Solids
%
Methane Content
%
Price of Gas
₹/m3
Gas Output

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Feedstock Type
Cow Dung
Feedstock Quantity
10,000 kg/day
Total Convertible Volatile Solids %
12%
Methane Content (%)
55%
Total Convertible Volatile Solids quantity (in kgs)
1,200 kg
Raw Biogas Produced
600 m3/day
Refined Bio Gas (m3)
330 m3/day
Refined Bio Gas production (kg)
237.6 kg/day
LPG Cylinders
12.51 per day
Electricity Output
990 kWh/day
Revenue Generation

FX: Unavailable • Updated N/A

Daily revenue
₹20,460
Monthly
₹6.14 L
Yearly (330d)
₹67.52 L
20 Years
₹13.50 Cr

Assumptions

Biogas composition

Methane
55%
Raw biogas (% Vol)
98%
Refined (% Vol)
Carbon Dioxide
40%
Raw biogas (% Vol)
< 2%
Refined (% Vol)
Hydrogen Sulphide (H2S)
1000 ppm
Raw biogas (PPM v)
< 10 ppm
Refined (PPM v)
Water Vapour
4%
Raw biogas (% Vol)
< 10 ppm
Refined (% Vol)
Nitrogen (N2)
0%
Raw biogas (% Vol)
0%
Refined (% Vol)
Oxygen (O2)
0%
Raw biogas (% Vol)
0%
Refined (% Vol)

Physical constants & conversion factors

Raw biogas density
1.03
kg/m3
Bio-RNG density
0.72
kg/m3
Temperature
40
Celsius
Pressure
1.01
kg/cm2
Biogas yield
0.4
m3/kg VS
LPG cylinder
14.2
kg per cylinder
Electricity factor
2.0
kWh/m3
Operating days/yr
330
days/year

Biogas Calculator FAQ

What does the biogas calculator calculate?
It estimates raw biogas, refined CBG output, LPG equivalent, electricity output, and projected revenue based on your inputs.
How is CBG estimated in this biogas calculation?
CBG output is derived from the raw biogas produced and the methane content you set in the calculator.
How do I generate the biogas calculator report?
Enter your values and click Generate Report to create your calculator report.
What is biogas density (kg/m3) used for?
The calculator uses biogas density assumptions to convert between mass and volume so the outputs match your selected inputs.
What is a common density range for biogas in kg/m3?
A practical planning range is often around 1.10 to 1.20 kg/m3, but your exact value depends on methane content and operating conditions.
How do I calculate biogas to RNG or biomethane yield?
Enter the feedstock quantity, raw biogas assumptions, methane percentage and conversion assumptions. Bioflux estimates raw biogas and refined gas output so teams can model biomethane, RNG or CBG scenarios.
What is the difference between biogas, biomethane, RNG and Bio-CNG?
Biogas is the raw gas from anaerobic digestion. Biomethane and RNG are upgraded methane-rich gas streams, while Bio-CNG is compressed biomethane used as vehicle fuel or industrial gas.