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Sustainability & Environment Tools
920 free calculators, converters and checkers — built for SG, MY and the region, reviewed with current figures. No accounts, no paywalls.
Size the unit, then see what inverter vs non-inverter really costs
Annual CO₂e tonnes from 5 categories
Compare car, motorbike, MRT, bus, bike — by carbon and by cost
See the carbon in your weekly plate — and the easiest swaps to cut it
The real carbon cost of a flight — and what it takes to offset it
Add your appliances, see the bill, the carbon, and where to cut
How much rain your roof could catch — and what a tank would deliver
Turn your weekly recycling into carbon, energy and landfill saved
See generation, bill savings and the year your panels pay for themselves
How much carbon your trees absorb — and what it takes to offset a footprint