CO2 Calculator
Calculate CO2 emissions from driving, flying, energy use, and food consumption.
Activity Details
Emission Factor
Car (petrol): 0.21 kg/km
CO2 Emissions
21 kg
0.0210 metric tons
From: 100 km of Car (petrol)
Equivalents
Tree absorption time348 days (1 tree)
Trees for 1 year1 trees
Driving equivalent100 km
Smartphone charges2,625 charges
Common Comparisons
4.6 tons
Avg car/year
16 tons
US person/year
1.1 tons
Atlantic flight
22 kg
Tree/year
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.