# Is LPG in India propane or butane?

Canonical: https://senseible.earth/answers/indian-lpg-propane-butane-mix

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](https://senseible.earth/answers/lpg-19-kg-cylinder-co2)
- [Propane vs natural gas in kilns](https://senseible.earth/answers/propane-vs-natural-gas-tile-kiln-co2)
- [LPG or PNG per unit of heat](https://senseible.earth/answers/lpg-or-png-lower-co2-per-unit-of-heat)

Sources: [PPAC Ready Reckoner FY 2025-26, Chapter 9 conversion tables](https://ppac.gov.in/download.php?file=rep_studies/1784899305_The_PPAC_Ready_Reckoner_FY_2025%E2%80%9326_Final.pdf), [IPCC 2006 Guidelines, Volume 2 (Energy), default factors](https://www.ipcc-nggip.iges.or.jp/public/2006gl/vol2.html)

Last reviewed 2026-10-23.