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Flight Emissions Calculator

Estimate a base flight CO₂ scenario from passenger distance, cabin class, and user-entered emission factors, with an optional non-CO₂ radiative-forcing multiplier.

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Fill in the highlighted fields to see your result.

km
kg CO₂/passenger-km

A transparent worksheet using measured values and explicit user-entered scenario factors.

Results update as you type.

Arithmetic scenario only. Verify measurements, product data, and source applicability for your use.

Worked example

distance: 1000 · emissionsFactor: 0.12 · cabinMultiplier: 1 · rfMultiplier: 1.7 · factorSource: ICAO ICEC methodology 2024 · rfSource: IPCC AR6 WGI non-CO2 context · provenance: ICAO/AR6 versions, geography global · uncertainty: ±30% on base factor and RF multiplier

Result: 120 kg CO₂

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Flight Emissions Calculator

The Flight Emissions Calculator estimates a base flight CO₂ scenario from passenger distance, cabin class, and user-entered emission factors, with an optional non-CO₂ radiative-forcing multiplier.

Inputs and method

Base CO₂ = passenger distance × entered emissions factor × cabin multiplier. Optional scenario = base CO₂ × entered RF multiplier.

All empirical factors, rates, percentages, clearances, product yields, and model values shown as inputs are scenario values supplied by you. Their source or measurement basis appears beside the inputs and result. Units remain visible, calculations use unrounded values, and rounding occurs only for display or a whole-package ceiling.

Interpreting the result

Factors, cabin treatment, geography, year, and RF choice must come from the selected source. Results are not an exact footprint and include no car/tree equivalents. For scenario-style comparisons in other areas, see the Food Miles Calculator, Meat Footprint Calculator, and Home Energy Efficiency Calculator.

Treat scenario ranges as sensitivity ranges, not confidence intervals. Check the factor’s version, geography, population or product, system boundary, and date before using the result. A finite arithmetic result does not establish code compliance, certification, safety, forecast accuracy, or model validity.

Validation and rounding

The calculator rejects blank required factors, invalid numeric values, prohibited negatives, impossible relationships, and unsupported modes. No malformed value silently selects another branch. Continuous outputs use the precision displayed in the result; package quantities round up only after waste is applied.

Worked example

For 1,000 passenger-km, 0.12 kg CO₂/passenger-km, and cabin multiplier 1, base CO₂ is 120 kg. An RF multiplier of 1.7 gives 204 kg CO₂e; 0 gives a zero optional scenario without changing base CO₂.

Frequently asked question

What does “none” mean for RF? Enter 0 and identify that choice in the RF source field; base CO₂ remains separate.

Sources

Compare Flight Emissions Calculator with related tools

All comparisons →
CO2 Breathing Emission vs Flight EmissionsCompare the CO2 breathing emission and flight emissions calculators: exhaled CO2 volume and mass from ventilation assumptions versus flight CO2 from passenger distance, emission factors, and an optional radiative-forcing multiplier.Flight Emissions vs Meat FootprintCompare the two lifestyle emissions scenario calculators: passenger flight CO₂ from distance, cabin class, and an entered factor with an optional radiative-forcing multiplier, versus meat serving emissions from servings, serving mass, and an entered lifecycle factor.Food Miles vs Flight Emissions CalculatorCompare the two transport-emissions scenario calculators: freight tonne-kilometres from shipment mass, distance, and a factor versus passenger flight CO₂ from distance, cabin class, and an optional radiative-forcing multiplier.Flight Emissions vs Tree BenefitsCompare the two sides of the offset question: what a flight scenario produces in CO₂ and CO₂e, and what a set of trees provides per year — and how to combine them yourself.

Frequently asked questions

How is base CO2 calculated?
Base CO2 is passenger distance times the entered emissions factor times the cabin multiplier. For 1,000 passenger-kilometers at 0.12 kg CO2 per passenger-kilometer with a cabin multiplier of 1, the base is 120 kg.
What does the radiative-forcing option do?
The optional scenario is base CO2 multiplied by the radiative-forcing multiplier you enter. A multiplier of 1.7 turns the 120 kg base into 204 kg CO2e, while entering 0 leaves the optional scenario at zero without changing the base CO2.
What does the result not include?
The result is not an exact footprint and includes no car or tree equivalents. The factors, cabin treatment, geography, year, and radiative-forcing choice must come from the selected source.

Sources

Related calculators

Solar Panel Carbon Offset CalculatorEstimate solar panel carbon offset from rated system size, sun hours, regional grid intensity, and the calculator's preserved performance and manufacturing assumptions.CO2 Breathing Emission CalculatorConvert an entered breathing scenario into CO₂ gas volume and mass for a selected duration.Composting Impact CalculatorMultiply food-waste mass by user-selected avoided-emissions and compost-yield factors.Food Miles Calculator (kg CO₂e Transport Emissions)Calculate food miles and transport-only emissions from shipment mass, distance, and an entered emissions factor — tonne-kilometres and kg CO₂e per tonne-km.Meat Footprint CalculatorEstimate the carbon footprint of meat servings from serving mass and an entered kg CO₂e-per-kg lifecycle factor.Plastic Footprint CalculatorConvert an entered item frequency and measured mass into an annual mass scenario.

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