How much ethanol is in petrol in my state, and can I use that share when I work out my fleet's petrol emissions?

The Petroleum Planning and Analysis Cell (PPAC) Ready Reckoner prints an average ethanol blending percentage for every state. For November 2024 to October 2025 it is 19.24% across India, from 17.4% in Goa to 19.5% in Kerala, with the Andaman and Nicobar Islands at 7.5%. The November 2025 to March 2026 column shows 20.0% almost everywhere.

What PPAC prints

• Table 6.10 of the Ready Reckoner for 2025-26 is headed Ethanol Blending Programme. It lists, for each state and union territory, the average percentage blending sales for two ethanol supply years (ESY): November 2025 to March 2026, and November 2024 to October 2025.
• India as a whole: 19.99% for November 2025 to March 2026 and 19.24% for November 2024 to October 2025. The document's own commentary gives 14.6% for ESY 2023-24 and 19.2% for ESY 2024-25.
• The two columns are not the same length. The 2025-26 column covers five months, so it is not a full-year figure. The commentary also words the 2025-26 period two ways, November 2025 to June 2026 in the opening summary and November 2025 to March 2026 in the chapter text, and the table's own footnote describes a supply year as 1 December to 31 October while the column headings say November to October. Quote the dates the table heading prints.
• A footnote explains that the percentage in each state is worked out from petrol sales within that state, and that a state can show a percentage with zero ethanol received because blended petrol reaches it from nearby supply points in other states.

Percentages for states buyers ask about

Each pair below is November 2024 to October 2025, then November 2025 to March 2026, as printed.

• Gujarat 19.3% and 20.0%. Maharashtra 19.2% and 20.0%. Tamil Nadu 19.4% and 20.0%. Karnataka 19.3% and 20.0%.
• Uttar Pradesh 19.2% and 20.0%. Rajasthan 19.3% and 20.0%. Punjab 19.1% and 20.0%. Haryana 19.5% and 20.0%. West Bengal 19.5% and 20.0%.
• Delhi 18.9% and 19.8%. Chhattisgarh 18.0% and 20.0%. Goa 17.4% and 20.0%.
• Andaman and Nicobar Islands 7.5% and 11.4%, the only entry far below the rest.

How to use a state figure in a petrol calculation

1. Take the litres from your pump receipts or fuel card statements for the period.
2. Pick the state and the column that matches your dates. Write down the table, the column heading and the percentage.
3. Petrol litres = total litres x (1 minus the percentage). Apply your per-litre petrol factor to those litres only.
4. Report the ethanol share's carbon dioxide (CO2) on its own biogenic line, outside Scope 1, as the answer on E20 (petrol with 20% ethanol) explains. Methane and nitrous oxide from burning the whole blend stay in Scope 1.

What the number cannot tell you

• It is an average of all petrol sold in the state in that period. The table does not say which grade or blend a single receipt carries, so a given pump can sell more or less ethanol than the average. That is my reading of how the figure is built, not a statement in the table.
• The percentage is a share of litres sold, not a fuel economy figure. E20 can raise litres per kilometre, which your receipts already capture. PPAC does not state the basis; this page treats it as a share of volume.
• If you cannot support a blend for your receipts, the safer choice is the unadjusted petrol factor, as that answer says.

12,000 litres of petrol bought in Gujarat in ESY 2024-25

• Per-litre petrol factor used here: 1,000 kilograms (kg) of petrol / 1.411 kilolitres = 0.7087 kg per litre; x 44.3 megajoules per kg = 31.40 megajoules per litre; x 0.0693 kg CO2 per megajoule = 2.176 kg CO2 per litre
• Without a blend: 12,000 x 2.176 = 26,112 kg CO2
• Gujarat share 19.3% (treated as a share of volume, an assumption): ethanol 12,000 x 0.193 = 2,316 litres; petrol 12,000 minus 2,316 = 9,684 litres
• Fossil CO2 in Scope 1: 9,684 x 2.176 = 21,073 kg, which is 5,039 kg or 19.3% lower than 26,112 kg
• Same fleet in Goa at 17.4%: petrol 12,000 x 0.826 = 9,912 litres; 9,912 x 2.176 = 21,569 kg
• The 2,316 litres of ethanol go on the biogenic line, not in Scope 1 and not as a deduction from the total

The 1.411 kilolitres per tonne is PPAC's figure at 29.5 degrees C, and 44.3 and 69,300 kg CO2 per terajoule are the Intergovernmental Panel on Climate Change (IPCC) 2006 defaults for motor gasoline. Several other answers on this site use 2.31 kg per litre for petrol, which implies a lighter fuel, about 0.752 kg per litre by my arithmetic. The state share works the same on either factor, so use whichever your report names.

What Senseible does here

Senseible reads fuel invoices and electricity bills into monthly records. Whether a pump receipt was a blend, and which one, is something only you or the pump can confirm, so keep that note beside the record.

• Does E20 petrol lower my Scope 1?
• Litres in a tonne of petrol in India
• Fuel volume at 29.5 C or 15 C
• Free calculators

Sources: PPAC Ready Reckoner 2025-26, Table 6.10 Ethanol Blending Programme, and its commentary on ethanol blending, IPCC 2006 Guidelines, Volume 2, Chapter 1 (Tables 1.2 and 1.4, motor gasoline)

Last reviewed 2026-11-05. PPAC publishes a new Ready Reckoner each year and the 2025-26 column covers only November to March. Re-check the state percentage and its dates before each report.