Tree Planting Carbon Impact
Find out how many trees it would take to offset your annual carbon footprint, and how far your available land or planting budget gets you.
Disclaimer. Tree absorption rates vary widely by species, climate and tree age; figures here use published average CO2 sequestration rates and should be treated as long-term estimates, not a substitute for reducing emissions directly. Read full disclaimer →
About Tree Carbon Offset Calculator
Trees sequester CO2 through photosynthesis, storing carbon in their biomass and soil. Sequestration rate depends on species, climate, and tree age. Fast-growing tropical trees like neem and eucalyptus sequester 10-25 kg CO2 per year; slow-growing trees like teak and oak sequester 5-12 kg CO2 per year. A mature tree over 30 years old can sequester 20-50 kg per year.
To offset 1 tonne of CO2, you would need to plant and maintain approximately 40-100 trees for 20 years depending on species and climate. This is why offsets are supplementary rather than primary solutions - it is impractical to plant enough trees to offset high-carbon lifestyles. Tree planting is most valuable when restoring native ecosystems rather than creating monocultures, as native trees support biodiversity, improve soil health, and are more climate-resilient. Always focus on reducing emissions first and use trees only to offset remaining unavoidable emissions.
Formula Used In This Calculator
Trees Needed for Full Offset = (Your Footprint in kg ÷ CO₂ absorbed per tree per year). Species growth rates offered: Fast-growing (Bamboo, Eucalyptus) at 10 kg/year, Average Mixed Forest at 22 kg/year, Tropical Hardwood at 35 kg/year, and Slow-growing (Oak, Pine) at 5 kg/year. Your Trees' Annual Absorption = Number of Trees × kg per tree ÷ 1000 (tonnes), and Percent of Footprint Offset compares that to your total footprint. Land Capacity assumes roughly 4 m² of planting space per tree, and Budget Trees assumes a cost of $0.50 per tree via reforestation programs.