Formulas

All of CarbonWise's calculations use a standard formula that can be applied uniformly across all vehicle types:
$CO2=d\ast ef/p$
Where: - $CO2$ = carbon dioxide emissions in grams
- $d$ = distance travelled (in kilometres)
- $ef$ = emission factor (in grams CO₂ per kilometer)
- $p$ = number of passengers

For electric cars, a specific variant of this formula is used to reflect electricity-related emissions better:
$CO2=d\ast ec\ast ci/p$
Where: - $CO2$ = carbon dioxide emissions in grams
- $d$ = distance travelled (in kilometres)
- $ec$ = energy consumption (in kWh/km)
- $ci$ = carbon intensity of electricity production (in gCO₂/kWh), here set at 240 gCO₂/kWh
- $p$ = number of passengers