Free tools · Carbon
Net zero gap calculator
Enter your base year, your target and your latest emissions. The tool shows the yearly cut your target needs, compares it with the minimum rate for a 1.5C-aligned science-based target, and tells you how far you are from your own path today.
Your gap
Enter your target and press Calculate.
Method and sources
Linear rate = reduction % / years from base to target, as a share of base year emissions. Compound rate = 1 minus (target / base) to the power of 1 / years: the cut needed each year on the previous year. The benchmark is the SBTi cross-sector absolute contraction minimum of 4.2% a year linear, for near-term Scope 1 and 2 targets aligned with 1.5C. Sector pathways, Scope 3 rules and the timeframe rules in SBTi criteria are not checked here. Your own path is drawn as a straight line from base to target; that shape is an assumption.
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