*Estimates for travel emissions can be included below. Refer to the
source document
for methodology and sources. Do not use for GHG reporting.
Tip: visit maps.google.com for exact road
distances
(can be used as good approximate values for rail distances as
well)
0.0 kg CO2e
Results Summary
Hotel Operations Emissions
Total Hotel Operations0.0 kg
CO2eCalculated from the hotel's average
footprint per guest, weighted 2/3
for overnight guests and 1/3 for
daytime participants.
Food & Beverage Emissions
Breakfast0.0 kg CO2eTotal emissions from all breakfasts
served, based on the number of
overnight guests.
Morning break0.0 kg CO2eAutomatically includes one standard
morning break per day based on
participant counts.
Afternoon break0.0 kg CO2eAutomatically includes one evening
break for full-day schedules.
Beverage0.0 kg CO2e
Other F&B0.0 kg CO2e
Total F&B0.0 kg CO2e
Travel Emissions
Total Travel0.0 kg
CO2e
Total Emissions Breakdown
Hotel & F&B Emissions
Total 0.0kg CO2e
Travel Emissions
Total 0.0kg CO2e
Per Attendee & Peak Numbers
Emissions per participant0.0 kg CO2eTotal event emissions divided by
the peak number of participants on
any single day.
Participants (peak day)0
Conference Impact Totals
Energy
0 kWhEnergy used in hotel
operations.
Water
0 litersThis estimate combines water used
by overnight guests (based on the
hotel's average) with the usage
from day-only attendees. Daytime
usage is calculated from a base
amount per person, plus additional
water for meals and breaks served.
Tap water selections are also
included.
Emissions (Total est.)
0 kgCO2eEmissions from hotel operations,
food and beverage choices and
travel emissions.
Your Footprint in Perspective
Sources & Methodology
Travel Emissions
Travel emissions datasets (summary).
Flights use distance-binned averages with an engine-only CO₂ (TTW) default,
with optional lifecycle (WTW) and optional additional non‑CO₂ warming.
Factors come from established public sources (e.g., ICAO methodology, UK
government conversion
factors, ADEME/Base Carbone, Nordic research datasets).
Non‑aviation factors are WTW per passenger‑km.
Flights: choose TTW (default), WTW, or TTW + non‑CO₂ warming.
Units: factors in kg CO₂e per passenger‑km; totals include attendees
and
distance.
Food & Beverage
Food and beverage emissions calculations use the
methodology provided by
Klimato
and are based on the actual ingredients used.
Representative emissions for breakfast and for
lunch (salads,starter, dessert, bread, spread
etc., are averages based on typical serving sizes
and ingredient composition.
Hotel Operations
Hotel emissions, energy, and water calculations are
based on the selected hotel's measured results for
2024.You can see full list of factors used here
here.
Documentation & Contact
You can find a complete description of the
calculation logic
here.
Calculate CO2 emissions, energy and water usage from:
Hotel operations (based on the selected hotel)
Food and beverages (based on the selected food and beverage options)
Attendee travel emissions (optional, for flights, cars, buses, and
trains)
Compare different scenarios by duplicating your
configuration
and adjusting values.
See the numbers in perspective with understandable
examples.
Toolbar Overview
Compare – Create a copy of your current setup to explore
different scenarios side-by-side. You can add up to 5 options and rename
them
for easy identification.
Sources – View the methodology and data sources used for
travel, food & beverage, and hotel operations calculations.
Reset – Clear all inputs and start fresh with default
values.
How to use the tool
Step 1: Conference Details
Select your event's Country, City, and
Hotel.
Enter the baseline Number of Participants
to
prefill daily counts.
Set the Total Number of Days (use .5 for
half-days).
Set the Total Number of Nights guests will
stay.
Adjusting per-day/per-night counts: If
attendance varies across days (e.g., fewer people on the
last
day), you can adjust the individual day counts. The same
applies
to overnight guests – adjust per-night counts if some guests
arrive or leave on different dates.
Step 2: Food & Beverage Choices
For each day, expand the accordion to see the meal options.
Quick Diet Selection: Use the diet buttons
at
the top of each day's F&B section to quickly populate
typical
menus:
Meat – Meat-focused dishes
Fish – Fish and seafood dishes
Balanced – A mix of meat, fish, and
vegetarian options
Vegetarian – Plant-based dishes
only
Select the F&B items you plan to serve from the dropdown
lists.
Enter the total number of portions for each item.
Use the "+" button to add multiple items per category (e.g.,
two
different lunch options).
Step 3: Attendee Travel (Optional)
Click "Include Travel Emissions" to expand
the
travel section.
Click "+Add Travel Mode" to add a new
travel
leg.
For each leg, select the transport type:
Plane,
Car, Bus, or
Train.
For planes, enter airport codes or city names in the From/To
fields for automatic distance calculation.
For ground transport, enter the distance in kilometers or
use
the From/To fields.
Toggle Round trip on or off depending on
whether the journey is one-way or return.
Enter the number of Persons traveling this
leg.
Use the × button to remove a travel leg.
Note: Travel estimates are for planning purposes and
should
not be used for official GHG reporting.
Step 4: Review Results
The results pane on the right updates automatically as you
make
changes.
Expand the accordions to see detailed breakdowns, charts,
and
contextual information about your event's footprint.
When travel is included, a separate Travel
Emissions section appears in the results with a
breakdown by transport mode.
Understanding Your Results
Results Summary: Shows breakdowns for Hotel Operations,
Food &
Beverage, and (if enabled) Travel Emissions.
Charts: Visual pie charts show the proportion of emissions
from
each category.
Per Attendee & Peak Numbers: See the emissions per
participant
based on peak daily attendance.
Conference Impact Totals: View total energy (kWh), water
(liters), and CO2 emissions for the entire event.
Your Footprint in Perspective: This section appears when
you
have results and puts your total emissions into context with relatable
examples
(like equivalent car trips or household energy usage).