Calculate & Offset Your Carbon Footprint

A carbon footprint is the total greenhouse gases — measured in CO₂e (carbon dioxide equivalent) — produced by your activities: travel, food, energy, shopping, and events. Coffset's AI calculator walks you through each category conversationally and produces an accurate estimate in minutes using IPCC, EPA, and DEFRA emission factors.

Carbon offsets compensate for emissions you cannot yet eliminate by funding projects that reduce or remove an equivalent amount of greenhouse gas elsewhere. When you offset with Coffset, a verified carbon credit is permanently retired in your name via CNaught and linked to a public registry certificate you can verify independently.

Your offsets fund a diversified portfolio of 17+ certified projects spanning all 5 Oxford Methodology types — from landfill methane capture (Type 1) and peatland conservation (Type 2) to reforestation (Type 4) and frontier engineered removal (Type 5). Every project is certified under VCS (Verra), Gold Standard, or equivalent standards.

The Oxford Principles for Carbon Offsetting (2024) define five categories of carbon project based on their durability and removal permanence — from emissions avoidance to long-lived engineered removal. The World Economic Forum recommends a diversified portfolio approach across all five types. Coffset's portfolio is built entirely on this framework.

CO₂e stands for "carbon dioxide equivalent." It is a standard unit that converts all greenhouse gases (methane, nitrous oxide, refrigerants, etc.) into the warming impact of an equivalent amount of CO₂. This lets us measure, compare, and offset your full climate impact — not just direct CO₂ emissions.

Coffset charges €0.04 per kg of CO₂e offset — fully transparent, no subscriptions, no hidden fees. The average European lifestyle emits roughly 8,000–10,000 kg CO₂e per year, which would cost €320–€400 to fully offset. Individual trips or events can cost as little as €1–€5.

Yes. Every purchase generates an official Certificate of Voluntary Carbon Action with a unique retirement ID. You can verify the exact amount retired, the projects it funded, and the registry entry — all publicly traceable. This is verifiable climate accounting, not a donation receipt.

No — and we say so clearly. Coffset explicitly advocates for reducing emissions first. Offsetting compensates for what remains unavoidable; it does not replace genuine reductions. Think of it as a bridge: buy time with offsets while you make the structural changes that matter most.