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Calcimator

Soil Sampling Grid Calculator

Plan a grid or zone soil sampling strategy with sample count, spacing, and cost estimates.

Inputs

acres
acres
$

Results

Sample Points

64

Total Sampling Cost

$1,600.00

≈ 12 pairs of sneakers

Total Sub-samples960
Grid Spacing330 ft
Cost per Acre$10.00
How to Use This Calculator
  1. Enter Field Size, Sampling Method, and Grid Sampling.
  2. Set Zone Sampling, Grid / Zone Size, and Lab Cost per Sample.
  3. Adjust Sub-samples per Point as needed.
  4. Review Sample Points and Total Sampling Cost ($).
  5. Use Total Sub-samples and Grid Spacing (ft) to inform your decision.

How the result changes with Field Size

Field SizeSample PointsTotal Sampling Cost
1,001401$10,025.00
3,5011,401$35,025.00
6,5002,600$65,000.00
9,0003,600$90,000.00

What each input means

Field Size
Total field area to sample.
Sampling Method
Grid provides uniform coverage; zone targets management zones.
Grid / Zone Size
Acres per sample point. Smaller = more precision, higher cost.
Lab Cost per Sample
Laboratory analysis cost per composite sample.
Sub-samples per Point
Cores combined into each composite sample (12-20 typical).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Field Size = 160, Sampling Method = 1, Grid / Zone Size = 2.5, Lab Cost per Sample = 25 = 5 input(s) provided
  2. Calculate Sample Points
    Sample Points
    64 = 64
  3. Calculate Total Sampling Cost
    Total Sampling Cost
    1600 = $1,600
  4. Calculate Total Sub-samples
    Total Sub-samples
    960 = 960
  5. Calculate Grid Spacing
    Grid Spacing
    330 = 330

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