Free Scope 3 Business Flights Distance and Emissions Excel Calculator

Tracking business travel emissions shouldn’t mean spending hours inputting flight routes into online calculators. That’s why we created the Free Scope 3 Business Flights Distance and Emissions Excel Calculator — a time-saving tool for sustainability and finance teams working to meet the requirements of Scope 3 Category 6: Business Travel under the GHG Protocol.

Whether you're a sustainability consultant or financial controller, this spreadsheet helps you move from manual data entry to streamlined, auditable calculations in minutes.

Why calculating Scope 3 for business travel is so painful

Emissions from business travel are a classic reporting headache. You’re usually handed a spreadsheet of flights — some with city names, others with IATA codes — and expected to convert them into emissions estimates fast. Online flight distance calculators might help, but not if you have to enter every trip manually. That’s where the time drain begins.

The Scope 3 Category 6 requirement covers indirect emissions from air travel not owned or operated by the reporting company, making accuracy and completeness essential. But getting there shouldn’t require heroic levels of patience.

A tool built for busy teams

The Excel calculator automates key steps in emissions estimation so you don’t have to:

• Flight distance calculations: Simply enter origin and destination airport codes or city names — the spreadsheet looks up the route for you.
• Emission factors by class: Choose from economy, premium economy, business, or first class and the tool assigns the right factor automatically. If no class is available, an average factor is used.
• Customisable inputs: Specify return trips and passenger counts per flight to scale the estimates.
• Emissions estimates that match reporting standards: All calculations follow the GHG Protocol and DEFRA/BEIS conversion factors, ready for audit or reporting.

This free resource is especially valuable for teams who receive bulk flight data from finance or travel management systems. Instead of copying and pasting each trip into an online calculator, the Excel file lets you process everything at once.

⚠️ Important:
This tool only works with Excel 2021 or Microsoft 365. The XLOOKUP formulas used won’t function in older versions of Excel.

Save time now — Then scale with Avarni

This tool is a great starting point for teams not yet using automated platforms. But once you’re dealing with more than a few data sources, or you need to calculate emissions across all Scope 3 categories — not just travel — Avarni is a better fit.

Here’s how the free tool compares with what Avarni automates:

With Avarni, you also gain a platform that helps map, normalise, and visualise all your Scope 3 data, so travel becomes just one piece of a much bigger, automated picture.

👉 Download: Scope 3 Business Flights Distance and Emissions Excel Calculator