# Area

The area of a biodiversity credit is always 1 hectare. Marine science is usually expressed in square kilometers, and easily converted as equal to 100 hectares.

<figure><img src="https://2055272986-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fkf6maUVyWIHELE0GGRSJ%2Fuploads%2FHYHSIQsA3oGFL01XnmBb%2FCopy%20of%20Voluntary%20Biodiversity%20Credit_%20Public%20(11).png?alt=media&#x26;token=a789a472-d2b9-4394-a415-e9cae873faf3" alt=""><figcaption><p>Depiction of biodiveristy unit area — Ecological Benefits Foundation</p></figcaption></figure>