This calculator uses DEFRA or GHG methodology and Great Circle Distances to create a carbon emissions estimate of your journey. Actual emissions per flight will vary depending upon a wide range of variable factors, including actual load factors and aircraft types. For a clearer idea of what your flight may create try our advanced air calculator, which uses a wide range of factors to try and determine real world emissions impact. When offsetting any values, remember to use DEFRA or GHG values as the basis of your donation/payment.

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