Climate calculators and checkers, freely available
Each answers a specific question, calibrated against our Bilan Carbone®, LCA and compliance projects. 4 display their verdict on screen, 3 send their detailed verdict by email.
- 7 tools
- 4 with the verdict on screen
- from 30 s to 1 min
- free, with no obligation

Industrial company with 250 to 499 employees, 1 site
€14,500to €24,000 excl. VAT
19 consultant-days, 4 to 6 month process
Detailed estimate by email, after 6 questions
What will your Bilan Carbone® cost?
A range calibrated against 2026 rates and public funding, with the number of consultant-days and the process duration.
Start the estimator →What does a Bilan Carbone® cost in 2026?+
For a company with 50 to 500 employees, a full Bilan Carbone® (scopes 1, 2 and 3) costs between €8,000 and €25,000 excl. VAT depending on scope and level of support. Diag Décarbon'Action funds 40% of a €10,000 excl. VAT service for eligible companies with fewer than 500 employees, leaving €6,000 excl. VAT payable by you.
Does BEGES apply to my company?+
Mandatory BEGES applies to companies with more than 500 employees in metropolitan France (250 in French overseas regions), local authorities with more than 50,000 inhabitants, the State and public-law legal entities with more than 250 staff. Publication every 4 years (3 for the public sector) on ADEME's platform, fine up to €50,000 (€100,000 for repeat offences).
What is the difference between environmental labelling and the DPP?+
Environmental labelling is a consumer-facing score, voluntary for textiles in France since 1 October 2025 and publishable by a third party since 1 October 2026. The digital product passport (DPP) is a European technical data register (composition, repairability, recyclability) accessible by QR code. The two are being deployed in parallel.
What is the carbon footprint of 1,000 ChatGPT or Claude requests?+
It depends entirely on the model. For 1,000 conversations of around 400 tokens, our calculator (EcoLogits method, world electricity mix) gives 22 g CO2e with Claude Haiku 4.5, 388 g with Claude Sonnet 4.6, 906 g with Claude Opus 4.8 and 2.6 kg with Gemini 3.1 Pro. The choice of model therefore matters more than the number of requests.

A case that fits none of these 7 outils ?
Tell us about your situation: sector, deadline, scope. A senior consultant responds within 24 working hours, in writing or by phone.








