Travel Carbon Cost
Estimate a flight's CO2 emissions and the price of offsetting them.
About Travel Carbon Cost
Distance is multiplied by a per-kilometer emissions factor for flying, then converted to tonnes to price an offset. Aviation carbon is high per passenger-kilometer, so estimating it is the first step to flight choices or offsets.
Formula
Travel Carbon Cost
CO2 = flight km x kg per km; offset = tonnes x price per tonne
- CO2 per km
- Per-passenger emission factor for short-haul flying
Worked example
With the default values below, Travel Carbon Cost returns CO2 Emissions of 230.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Flight distanceminimum 0 km
- 2,000 km
- CO2 per kmminimum 0 kg
- 0.115 kg
- Offset price per tonminimum 0
- 30
Results
- CO2 Emissions
- 230.0 kg
- Emissions
- 0.230 t
- Offset Cost
- $6.90
Step by step
- 1Values used
- 2Travel Carbon Cost
- 3CO2 Emissions= 230.0 kg
- 4Emissions= 0.230 t
- 5Offset Cost= 6.90
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Travel Carbon Cost calculated?
CO2 = flight km x kg per km; offset = tonnes x price per tonne Distance is multiplied by a per-kilometer emissions factor for flying, then converted to tonnes to price an offset.
Why does Travel Carbon Cost matter?
Aviation carbon is high per passenger-kilometer, so estimating it is the first step to flight choices or offsets.
What values do I need to enter?
This calculator takes 3 inputs: Flight distance, CO2 per km, Offset price per ton. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.