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Calcimator

Biodiversity Credit Calculator

Size pollinator habitat patches, estimate biodiversity scores, pollination service coverage, and potential biodiversity credit revenue.

Inputs

%
%

Results

Total habitat area (acres)

10

Average patch size (acres)2.5
Biodiversity quality score (0-100)74
Estimated pollinator species27
Pollination service coverage (%)90
Establishment cost ($)$3,500.00
Annual credit revenue ($)$111.00
Annual Maintenance Cost$750.00
How to Use This Calculator
  1. Enter Total farm (acres), Habitat target (%), and Number of habitat patches.
  2. Set Flowering months coverage, Native plant species (%), and Seed cost ($/acre).
  3. Adjust Biodiversity credit price ($) as needed.
  4. Review the Total habitat area (acres) result.
  5. Use Average patch size (acres) and Biodiversity quality score (0-100) to inform your decision.

How the result changes with Total farm (acres)

Total farm (acres)Total habitat area (acres)
10,001500.05
35,0011,750.05
65,0003,250
90,0004,500

What each input means

Total farm (acres)
Total farm acreage including all production and non-production land.
Habitat target (%)
Percentage of farm to dedicate to pollinator/biodiversity habitat. USDA recommends 3-5%.
Number of habitat patches
Distribute habitat across multiple patches for better connectivity. Each should be at least 0.25 acres.
Flowering months coverage
Months with continuous bloom (March-November). Use diverse species for longer coverage.
Native plant species (%)
Percentage of planting mix that is native species. Higher native content supports more pollinator species.
Seed cost ($/acre)
Native wildflower/grass seed mix cost. High-diversity mixes: $300-$800/acre.
Biodiversity credit price ($)
Price per biodiversity credit unit in voluntary markets. Emerging market: $5-$30.

What each result means

Total habitat area (acres)
Total acres to convert to pollinator/biodiversity habitat.
Average patch size (acres)
Size of each habitat patch. Minimum 0.25 acres recommended.
Biodiversity quality score (0-100)
Composite score based on patch size, native plants, flowering coverage, and connectivity.
Estimated pollinator species
Approximate number of pollinator species your habitat could support.
Pollination service coverage (%)
Percentage of farm within pollinator foraging range of habitat patches.
Establishment cost ($)
One-time cost for seed purchase and planting.
Annual credit revenue ($)
Potential annual income from biodiversity credit sales.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Total farm (acres) = 200, Habitat target (%) = 5, Number of habitat patches = 4, Flowering months coverage = 6 = 7 input(s) provided
  2. Calculate Total habitat area
    Total habitat area = farmAcres * (habitatTargetPct / 100)
    10 = 10
  3. Calculate Average patch size
    Average patch size = habitatAcres / numPatches
    2.5 = 2.5
  4. Calculate Biodiversity quality score
    Biodiversity quality score = min(100
    74 = 74

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