Electric bike fleet vs car journeys: the CO2 order of magnitude

And in carbon terms? The other tools on this site answer questions in euros; this calculator answers the question asked in an ESG report: how much CO2 equivalent an electric bike fleet avoids when it replaces car journeys. It depends on no lease payment and no price, only on the volumes you enter. The emission factors are the public ones from ADEME, on a life-cycle assessment basis, recorded on 29 July 2026 and displayed below the result. The kilometres are pre-filled only when you come from the estimator on the home page, from your own entries, and can still be changed: the result depends entirely on them.

The calculation

Car journeys replaced: your volumes, never your euros

Your journeys
Pre-filled if you come from another tool on the site; always editable.
Count only the kilometres that would have been driven by car. A new journey, or one shifted from the metro, avoids nothing.
Only the modes whose ADEME factor has been recorded at source are offered.
The scope applies to both terms of the comparison, never to one alone.
The result, from what you entered

Emissions avoided per year

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enter your kilometres

What the car would have emitted

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over the same kilometres

What the bikes emit

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electrically assisted bike, charging included

This result is a comparative order of magnitude, rounded, based on conventional average factors: it depends on your actual modal shift, which this site does not know. It does not turn your fleet into a “carbon neutral” activity, a claim regulated by article L. 229-68 du code de l'environnement (French environmental code) that this site never makes. The electrically assisted bike factor is applied to all models, longtails included, since ADEME publishes no factor specific to them, which limits the precision of the result for those models.

To gauge what is at stake: the greenhouse gas emissions report is mandatory for companies with more than 500 employees in metropolitan France, updated every four years with a published transition plan (article L. 229-25 du code de l'environnement, French environmental code). Travel emissions are part of it; a fleet of bikes is a documented lever, not an offset.

Sources

ADEME emission factors: where they come from

Next review of these factors: 29 October 2026.

  1. ADEME, Impact CO2 / Base Empreinte, electrically assisted bike 10.95 g CO2e per kilometre in life-cycle assessment (manufacturing included); 2.23 g per kilometre in use only (charging, French electricity mix). impactco2.fr/outils/transport recorded on 29 July 2026
  2. ADEME, Impact CO2 / Base Empreinte, combustion car around 218 g CO2e per kilometre in life-cycle assessment for a driver alone; 142.25 g per passenger-kilometre at average occupancy; around 110 g per passenger-kilometre in use only. impactco2.fr/outils/transport recorded on 29 July 2026
  3. Légifrance, article L. 229-25 du code de l'environnement (French environmental code) Greenhouse gas emissions report: more than 500 employees in metropolitan France, more than 250 overseas, update every four years, transition plan. www.legifrance.gouv.fr/codes/article_lc/LEGIARTI000039369665 accessed on 29 July 2026
  4. Légifrance, article L. 229-68 du code de l'environnement (French environmental code) and décret n° 2022-539 du 13 avril 2022 Regulation of carbon neutrality claims in advertising; basis for the absence of any such claim in the result. accessed on 29 July 2026

Fleet size, lease, pay rise: the financial calculators

How many bikes, what rent, company bike or pay rise, buying a bike yourself: each of these questions has its own tool in the Tools menu.

Comparative order of magnitude based on public ADEME factors. Neither a regulatory report, nor an offset, nor a neutrality claim. Wander SAS sends no costing to any given client.

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