Volora Français

Methodology

Methodology and sources

A short, honest walk through how Volora turns a kilometre into a number.

01 — How we calculate

How we calculate

Two parallel calculations — one for your EV, one for the petrol or diesel car you would otherwise drive. The difference is your savings.

EV

EV cost
  1. 01 distance
  2. 02 kWh / 100 km
  3. 03 €/kWh

distance × kWh / 100 km × €/kWh

= EV cost

Thermal

Thermal cost
  1. 01 distance
  2. 02 L / 100 km
  3. 03 €/L

distance × L / 100 km × €/L

= Thermal cost

You save

Thermal cost − EV cost

kWh = distance × consumption ÷ 100 · Liters = distance × consumption ÷ 100 · CO₂ EV = kWh × g/kWh ÷ 1000 · CO₂ thermal = liters × kg/L

02 — Where the numbers come from

Where the numbers come from

Country defaults

Documented country defaults used by the web calculator and app at launch. For each supported country, the home-electricity baseline relies on reliable country-specific sources; operator charging tariffs are a separate editable layer in the app.

Fresher live data

Where supported, the Volora app refreshes prices and grid carbon from reliable official sources specific to each country. The web calculator stays static for speed and privacy.

Your overrides

Every value is editable in the app — electricity price, fuel price, consumption — per trip and per vehicle.

03 — Honest CO₂ estimates

Honest CO₂ estimates

CO₂ figures are usage-based estimates, not a full lifecycle analysis. Reference factors used: roughly 2.7 kg CO₂e per litre of petrol, 3.1 kg per litre of diesel. Grid carbon varies by country and source quality.

Real values shift with

04 — Privacy at a glance

Privacy at a glance

A short summary — full details on the Privacy page.

  • Your vehicle data stays on your device by default
  • Anonymous analytics, no advertising tags
  • Optional cloud backup if you sign in
Read the full Privacy policy