Carbon Emission
Calculation Tools
for Travel

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Try out the API

const axios = require("axios"); axios.get('') .then(function (response) { console.log(; }) .catch(function (error) { console.log(error); });
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Carbon Compute

An embeddable carbon calculator for your website.

Coming Soon
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Open Source

There are plans to make the core functionality of trip to carbon open source soon.
Current Objective: developing API wrappers for different languages.
If this is something you may be interested in then join the discord :)

Join the Discord


The API uses two methods outlined by the IPCC, DEFRA U.K & GHG Protocol. Here is a document detailing the calculation method

The free API has a rate limit of about 5 requests per minute. Authenticated requests using API keys have a higher limit of 20 requests/min. The self-hosted APIs will not have one set by Trip to Carbon.

The API is free to use at the current rate limits. Trip to Carbon will soon have a new open model that allows people to self-host the API and other tools (thus, you decide the limit). Sign up to the newsletter to be updated when this is launched!

The use cases are similar to any A.P.I. If you are looking for ideas:
- Calculate your personal or business travel carbon emissions
- Carbon offset app
- Travel carbon analytics app
- Integrate the A.P.I into a travel site or map application like waze

You can send an email here: