Row Spacing Plan Calculator

Work out row spacing plan instantly with clear inputs, formula shown and shareable results.

About Row Spacing Plan Calculator

Rows fit across the field width, so the count is width divided by row spacing rounded down. Headlands at each end for turning machinery shorten each row, and multiplying the usable row length by the row count gives the total linear metres to be sown, sprayed or harvested.

Formulas

Row count

Rows = floor(field width / row spacing)

Row metres

Total row length = rows x (field length - 2 x headland)

Worked example

With the default values below, Row Spacing Plan Calculator returns Number Of Rows of 133. Change any input above and every figure here is recalculated in your browser.

Inputs used

Field Widthminimum 1 m: 60 m
Field Lengthminimum 1 m: 100 m
Row Spacingminimum 0.05 m: 0.45 m
Headland Left At Each Endminimum 0 m: 3 m

Results

Number Of Rows: 133
Usable Row Length: 94.00
Total Row Length: 12,502.0
Net Cropped Area: 0.5626

Step by step

1Values used
2Row count
3Row metres
4Number Of Rows= 133
5Usable Row Length= 94.00
6Total Row Length= 12,502.0
7Net Cropped Area= 0.5626

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why does total row length matter?

Seed, granular fertiliser, drip tape and in-row spray volumes are all consumed per linear metre of row, so the total row metres is the real basis for ordering.

Should rows run along the length or the width?

Run rows across the slope on sloping land to limit erosion, and along the longest dimension on flat land to reduce turning time. Change the width and length inputs to compare both layouts.