Skip to main content
Calkulon

How to Calculate Tree Carbon

What is Tree Carbon?

Trees absorb carbon dioxide through photosynthesis, removing greenhouse gas from atmosphere. Absorption rates vary by species, age, and climate.

Step-by-Step Guide

  1. 1Mature hardwood trees absorb 20-48 kg CO₂/year on average
  2. 2Young trees absorb less; mature trees at peak absorption
  3. 3Total lifetime absorption: one mature tree ≈ 20-30 tonnes CO₂

Worked Examples

Input
100 mature trees, average 30 kg CO₂/tree/year
Result
3 tonnes CO₂ absorbed annually
Meaningful but modest offset

Common Mistakes to Avoid

  • Over-estimating tree absorption capacity
  • Planting trees in marginal soils with poor survival

Frequently Asked Questions

How many trees offset a person's carbon footprint?

Typical person generates 4-16 tonnes CO₂/year; requires 100-500+ trees for complete offset.

Do trees absorb carbon forever?

No, carbon stored until tree dies. Forest management extends storage; sustainably harvested wood maintains benefit.

Ready to calculate? Try the free Tree Carbon Calculator

Try it yourself →

Settings

PrivacyTermsAbout© 2026 Calkulon