Free Carbon Offset Requirement calculator with clear step-by-step results.
Converts a measured carbon footprint into the volume of credits you actually have to retire and what that costs. A non-permanence buffer is added on top because nature-based removals can be reversed by fire, disease or land-use change, and registries hold back a pooled reserve for exactly that reason.
Credits to retire
Credits = emissions x offset share x (1 + buffer)
Annual cost
Cost = credits x price per tonne
Offset quality varies enormously and carbon-neutrality claims are increasingly regulated. This is a cost estimate, not advice on credit selection or on the compliance status of any claim you make.
Reversal risk. If a fraction of a forestry project burns, the sequestration it sold never happened. A buffer means your claim survives that outcome.
Under most reporting standards, no. Offsets are disclosed separately from gross emissions, and reduction targets must be met by actually cutting emissions.