Calculate & Offset Your Carbon Footprint
AI-powered calculator, verified offsets, €0.04/kg. Know your impact. Take action in minutes.
How It Works
Chat About Your Life
Tell our AI about your lifestyle, flights, diet, events, or business. Answer questions naturally — no spreadsheets, no forms.
Get Your Report
Receive a full breakdown of your emissions by category, personalised reduction tips, and comparison to global averages.
Offset Instantly
Purchase verified carbon credits from certified projects around the world and receive your official retirement certificate.
Why Choose Coffset
Not all carbon offsetting is created equal. Here's what sets Coffset apart from donation-based schemes and opaque credit marketplaces.
Effortless
Offsetting has never been easier. Calculate in a conversation, not a form. Our AI handles the complexity so you can act in minutes.
Accurate
Every calculation is grounded in IPCC, EPA, and DEFRA emission factors. Location-adjusted, activity-specific, and auditable.
Transparent
Every offset is traced to a public registry retirement. You get a unique certificate ID you can verify independently at any time.
Adaptable
Individuals, travellers, event organisers, or businesses — Coffset adapts to any lifestyle, any size, any scope.
Oxford Methodology
Our portfolio spans all 5 Oxford Offset Types — the most rigorous science-based framework for voluntary carbon markets, as recommended by the WEF.
Future-proof
From near-term methane capture to long-lived engineered removal — your offset supports both today's solutions and tomorrow's technologies.
Built on the Oxford Methodology
The Oxford Principles for Carbon Offsetting (2024) define five project types by permanence and durability. Coffset's portfolio spans all five — as recommended by the World Economic Forum.
Type 1
Emissions Reductions
Landfill gas, methane capture
Type 2
Conservation
Peatland & rainforest protection
Type 3
Capture & Storage
Industrial CCS technologies
Type 4
Nature-based Removal
Reforestation, mangroves
Type 5
Long-lived Removal
Direct air capture, bio-oil
Verified Projects Around the World
Your offsets fund certified carbon projects spanning emission reductions, conservation, and permanent carbon removal.
Carbon Action for Every Situation
Individuals
Understand your personal carbon footprint and offset what you can't yet reduce.
Start CalculatingTravellers
Calculate and offset flights, road trips, cruises, and holidays — before or after.
Start CalculatingEvents
Offset conferences, weddings, festivals, or corporate gatherings with traceable credits.
Start CalculatingBusinesses
Scope 1, 2, and 3 emissions for SMEs. Full audit trail and public verification.
Start CalculatingFrequently Asked Questions
What is a carbon footprint and how do I calculate it?
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.
How do carbon offsets work?
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.
What projects do my offsets support?
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.
What is the Oxford Methodology for carbon offsetting?
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.
What does CO₂e mean?
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.
How much does it cost to offset my carbon footprint?
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.
Can I get a certificate for my offsets?
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.
Is carbon offsetting enough to fight climate change?
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.