// by seankriegler.com
Carbon Footprint Calculator
Estimate CO2 emissions from your driving, flying, and energy usage
Not used for EV
Total flight time per year
Check your utility bill
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Driving (tonnes/yr)
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Flying (tonnes/yr)
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Electricity (tonnes/yr)
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Total (tonnes/yr)
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Trees to Offset
// CO2 per Fuel
Petrol: ~2.31 kg CO2/litre. Diesel: ~2.68 kg/litre. A car using 8.5L/100km emits about 196g CO2/km. EVs have zero tailpipe emissions but grid electricity matters.
// Flying Impact
A return flight JHB-London emits ~2.5 tonnes CO2 per passenger — equal to driving 12,000km. Flying is the single biggest carbon action most individuals take.
// SA Grid
South Africa's electricity grid is coal-heavy at ~1.0 kg CO2/kWh — among the highest in the world. Solar panels dramatically cut your electricity carbon footprint.
// Offset with Trees
A mature tree absorbs ~22 kg CO2/year. Offsetting 5 tonnes/year requires about 227 trees. Reducing emissions is always more effective than offsetting.