Is LPG in India propane or butane?

Both. PPAC's Ready Reckoner describes LPG as about 40% propane and 60% butane. That is why Indian factories use the general LPG emission factor, about 2.98 kg CO2 per kg from IPCC, rather than a pure propane or pure butane figure.

What PPAC says

• LPG contains propane (40%) and butane (60%).
• Natural gas contains 60 to 95% methane.
• Source: PPAC Ready Reckoner FY 2025-26, Table 9.4.

Why it matters for your numbers

Propane and butane have slightly different carbon content per kilogram, so a pure-gas factor from a foreign database can be a little off for Indian LPG. Bill quantities in kilograms times the LPG factor is the standard route.

What Senseible does here

Senseible reads the quantity and unit printed on each fuel invoice, converts it with a stated density or calorific value, and shows the factor and source on every line, so a litre or kilogram is never guessed.

• CO2 from a 19 kg cylinder
• Propane vs natural gas in kilns
• LPG or PNG per unit of heat

Sources: PPAC Ready Reckoner FY 2025-26, Chapter 9 conversion tables, IPCC 2006 Guidelines, Volume 2 (Energy), default factors

Last reviewed 2026-10-23.