Biodiversity Net Gain Calculator

Trace habitats on our interactive map and instantly generate a planning-ready biodiversity metric using our free biodiversity net gain calculator tool.

Map drawing preview placeholder

Who the BNG Tool is For

Automated Completion of the Small Site Metric

  • Simply by drawing habitats on the map, our tool will automatically complete the small-site biodiversity net gain metric for you.
  • You can also experiment with different habitats and see in real time how you can abide by the 10% biodiversity net gain.
  • Our built in biodiversity gain plan tool lets you complete the bng report and download the pdf for free.
  • While our built in biodiversity survey tool will detect priority habitats and designated sites within and nearby your redline boundary.

How much profit can your land generate you from biodiversity?

  • See which habitats on your land are of low value and how you can replace them with more valuable habitats.
  • Experimentally draw new habitats to maximize biodiversity credits your land can generate.
  • We will give you completed, planning ready biodiversity metrics ready to be sent off to your Local Planning Authority.
  • Even without creating new habitats you can use our tool to gain credits by enhancing your existing habitats.
  • becoming a biodiversity provider has never been so easy. Try our tool today for free.

Automated Completion of the Large Site Metric

  • By mapping out habitats across your development area, our tool will automatically complete the large-site biodiversity net gain metric for you.
  • Test alternative layouts, habitat mixes, and enhancements to understand how your project can achieve and exceed the 10% biodiversity net gain requirement.
  • Our built-in biodiversity gain strategy tool helps you prepare comprehensive BNG plans, generate impact assessments, and download necessary reports in PDF format.
  • The integrated biodiversity survey tool highlights priority habitats, designated sites, and ecological constraints across large, complex boundaries.
  • Experiment with compensating for lost habitat loss on site, without the need to purchase off-site credits

How It Works

Four quick steps from site sketch to downloadable metric.

Step 1

Boundary

Select or draw your red line boundary on the map to set the project extent.

Step 2

Existing Habitats

Draw or Smart Select the habitats that are already present on your site. Choose types from a guided list and view the biodiversity value of each.

Step 3

Proposed Habitats

Add the habitats you intend to create or enhance. We'll calculate biodivesity units and changes automatically in the background. You can also experiment with multiple drafts.

Step 4: That’s it!

Review the biodiversity units you've created, if you're happy download your completed biodiversity net gain metric.

if you need a BNG plan, use the built in BNG Plan tool

Export metric placeholder

Key Features - Measure Biodiversity With Ease

Create or enhance habitats and see how many credits each is worth

  • Draw habitats on your site to see how many biodiversity units each is worth
  • Replace or enhance low value habitats to maximise biodiversity net gain
  • Each habitat has a distinctiveness value and is labelled in the tool

Complete the biodiversity metric by drawing habitats on our map

  • Instead of measuring distances and inputting into the excel manually, simply draw your habitats on the map
  • The biodiversity net gain metric will be automatically completed for you and free to download
  • The tool handles all of your planning needs including with the built in biodiversity gain plan tool

Built In Trading Rule Violation Detection

  • There are many rules when it comes to habitat loss, including which habitats must replace removed habitats.
  • Our tool alerts you if you have violated any trading rules and shows you how to compensate.
  • The tool will also detect priority and irreplaceable habitats with the built in biodiversity survey tool
© 2025 Naturefy. All rights reserved.