Reforestation Density Calculator

Enter your planting assumptions

This calculator works well for restoration, plantations, shelterbelts, and mixed reforestation blocks.

Quick planning outputs for stocking, fill planting, and replant needs.

Trees per acre

Effective acres

Expected survival

Target stocking gap

You can edit the acre conversion factor below if you want to work from hectares or use custom assumptions.

Adjust the values below to match your site plan.

Project area (acres)

Excluded / non-plantable area (%)

Roads, drainage lines, structures, rocks, buffers, and access lanes.

Row spacing (ft)

Tree spacing in row (ft)

Planting pattern

Expected survival rate (%)

Extra fill planting (%)

Optional extra seedlings ordered up front.

Target surviving trees per acre

Default acre area and triangular-spacing adjustment are shown here for transparency.

Factor	Value	Unit
Area per acre		sq ft / acre
Triangular spacing multiplier		relative to square

0.00

Effective plantable acres

Trees per acre

Base total seedlings

Extra fill seedlings

Initial planting total

Expected surviving trees

Expected surviving trees / acre

Target surviving trees total

Replacement trees needed

Stocking gap vs target

For mixed species projects, this can be extended to split conifers, hardwoods, nurse trees, and infill rows.