Carbon Calculator
Indicative estimates using Singapore emission factors. Use them to find your biggest levers, not for formal reporting.
93% of a typical Singapore resident (~8.4 t/yr, indicative)
- Air travel2.3 t 29%
Return trips, economy class, including a radiative forcing uplift.
- Food & diet1.9 t 24%
Average dietary pattern.
- Goods & services1.58 t 20%
Spend-based estimate for retail, electronics and services.
- Private vehicle1.07 t 14%
Petrol vehicle at 0.171 kgCO2e/km.
- Home electricity0.62 t 8%
Grid factor 0.4168 kgCO2e/kWh, split across 3 in the household.
- Waste0.19 t 2%
Waste-to-energy incineration accounts for most disposal here.
- Public transport0.15 t 2%
MRT and bus travel — among the lowest-carbon options in Singapore.
- Piped gas0.05 t 1%
Town gas used for cooking and water heating.
Biggest levers
- Flights are your largest single lever
One long-haul return trip can exceed a year of household electricity. Consolidate trips, fly economy, and prefer regional rail or ferry legs where practical.
~1.8 tCO2e per long-haul trip avoided - Shift trips to MRT, bus or an EV
Public transport here is roughly a fifth of the per-km footprint of a petrol car. If you must drive, an EV on the Singapore grid emits about 60% less per km than petrol.
0.5-1.5 tCO2e per year - Swap a few meat meals each week
Moving from a meat-heavy to a low-meat pattern saves around 1 tCO2e per year, and hawker vegetarian options make this an easy substitution.
Up to 1 tCO2e per year - Cut food waste and separate recyclables
Food waste is the largest avoidable stream in Singapore households. Plan portions, and keep the blue bin free of contaminated items so recycling actually gets processed.
10-20% of waste emissions - Consider a solar or REC-backed electricity plan
Landed homes can install rooftop PV directly. Otherwise several retailers offer plans backed by renewable energy certificates that reduce your market-based footprint.
Varies by plan