Carbon Calculator, Rotary
Rotary District 9815 · Club Carbon Calculator

Everything you need to measure your club's footprint

Use the calculator below to build your club's annual carbon footprint, or jump straight to the guidance, data-collection forms and how-to guide that go with it.


0 kg CO2-e / year
0.00 t CO2-e

Rotary District 9815 · Environmental Award

Club Carbon Calculator

Estimate your club's annual carbon footprint from regular meetings, committee sessions and events — catering, travel, waste, venue power and accommodation — for your Environmental Award submission.

Piloted by Rotary District 9815. If it proves useful here, we'd love to see it grow across Zone 8 — and beyond.

Est. reviewed Sept 2026
  1. 1Add your club's regular meetings and one-off events below
  2. 2See your annual footprint and where it comes from
  3. 3Get ideas to reduce it, plus the full source data for your submission

Club details

Sets the region used for electricity, waste, accommodation & EV factors below

Meetings & events

Add each recurring meeting type and one-off event, with how often it happens per year

Counts your club's own activities — meetings, events, and their catering, travel, waste, venue power and accommodation. It doesn't include members' personal day-to-day habits outside club activities.

 

"Save entries file" downloads a working file of what's entered so far — share it with other members adding meetings/events through the year, then use "Import entries" to combine everyone's files (including several at once) into one club total. This is separate from the CSV/Excel downloads below, which are the polished report for your award submission. Tip: delete or rename the example meeting above before saving your file, so it isn't flagged as a possible duplicate when someone combines it with everyone else's.

Annual footprint

Updates live as you fill in activities above
0 kg CO2-e / year

CO2-e ("carbon dioxide equivalent") rolls every greenhouse gas your club's activities produce into one common, comparable unit — it's why figures below can simply be added together.

 
0.00
tonnes CO2-e

By category

 

Ideas to reduce your footprint

 

By meeting / event

Double-click a row to jump to and edit that meeting/event above.

Activity Per occurrence Times / yr Annual (kg CO2-e) Share

Emission factors & references

The exact figure and citation behind every calculation above — always visible and included when you print
What do these terms mean?
CO2-e (carbon dioxide equivalent)
A common unit that lets different greenhouse gases (CO2, methane, nitrous oxide, etc.) be added together, by converting each to the amount of CO2 that would cause the same warming.
Emission factor
The amount of CO2-e produced per unit of an activity — per kWh of electricity, per km travelled, per meal served. Multiplying an activity by its factor gives that activity's emissions.
Grid emission factor
How much CO2-e is released generating one kWh of electricity on a given region's power grid. It varies a lot by region, depending on how much of that grid's power comes from coal/gas vs. renewables.
Scope 2 / Scope 3
Standard greenhouse-gas accounting categories. Scope 2 covers the direct emissions of generating your electricity; Scope 3 adds the "upstream" emissions of getting that energy to the grid in the first place (extracting and transporting fuel, transmission losses, etc.). This tool's Australian electricity factors include both.
Radiative forcing (for flights)
Aircraft warm the climate through more than just their CO2 — contrails and other high-altitude effects add to it. A radiative forcing uplift accounts for that extra effect, which is why a flight's true climate impact reads higher than its CO2 emissions alone.
 
Full methodology write-up
 
Estimation tool for internal club use — not a certified greenhouse gas inventory. Piloted by Rotary District 9815, built with room to grow across Zone 8 and beyond. Adapted from the Toitū Envirocare (NZ, 2021) Rotary carbon calculator.