---
title: "Get CO₂ details for an itinerary from proformas by hash"
method: GET
path: "/co2/v2/proformas/{hash}"
tags: ["By ocean carrier"]
---

# Get CO₂ details for an itinerary from proformas by hash

`GET /co2/v2/proformas/{hash}`

This endpoint retrieves CO₂ emissions details for a specific itinerary, identified by a hash.  
Itinerary hashes are generated and returned in the `/itinerary/v2/proformas` response.

## Response

The CO₂e emissions are returned in grams.

| Field             | Description                                           | Type |
|------------------|-------------------------------------------------------|-------------------------------|
| `co2e`          | Estimated CO₂ emissions data.                         | Statistics (`min`, `max`, `average`, `standardDeviation`) |
| `co2e.wtt`      | Well-to-Tank (`WTT`) emissions data.                   | Statistics (`min`, `max`, `average`, `standardDeviation`) |
| `co2e.ttw`      | Tank-to-Wheels (`TTW`) emissions data.                 | Statistics (`min`, `max`, `average`, `standardDeviation`) |
| `co2e.intensity`| CO₂ intensity values (emissions per unit of cargo).    | Statistics (`min`, `max`, `average`, `standardDeviation`) |
| `distance`      | Total itinerary distance.                              | Numeric (meters) |

### Notes & considerations
- **Hashes** are not intended to be persisted or used as permanent references.

## Support endpoints and resources
- **Retrieve itinerary solutions**: use our [`/itinerary/v2/proformas`](/reference/getItinerariesFromProformas) endpoint to retrieve itinerary hashes for a given carrier, port pair and shipment details. 
- **Learn about our methodology**: visit the [Methodology for sea emissions calculation](/docs/co2-emissions-methodology) page.

## Path parameters

- `hash` string, required

## Response `200`

OK

## Other responses

- `400` — Bad request
- `404` — Not found

---

[API](https://skmtc.net/searoutes/apis/geocoding.md) · [All operations](https://skmtc.net/searoutes/apis/geocoding/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/searoutes/geocoding/versions/59f769fc4f39/schema)