Gain calculator

This calculator is aimed at landowners who wish to obtain an estimate of the value (in conservation credits) of potential biodiversity enhancement work on their land. Please enter all habitats present on your land to be managed for conservation to get a total biodiversity value for the site.

The calculator is based on a Government metric, tested by Defra in 6 county-sized pilots in 2013/2014 and by other local authorities who wanted to use it. The metric design draws upon offsetting metrics that have already been used for decades in other countries (e.g. Australia).

When entering the size of your site, please only enter values rounded up or down to whole numbers. e.g an area of 3.7 ha will be rounded up to 4 and an area of 3.2ha be rounded down to 3.

Please Note This information relies on certain assumptions. It has only been designed to give a useful general indication of the potential biodiversity value of your site if management was to take place. It is important that a detailed assessment is made of your site before acting on the information provided by the calculator. We cannot accept responsibility for any errors.

If you require a more accurate calculation, or would like to find out more about becoming a provider of biodiversity compensation you should contact us.. Alternatively, please register your site with us here.

Baseline value


Result: 0 credits

Saved calculations will appear here

Total value

Biodiversity: 0 credits