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Implement Working Width Calculator

Work out implement working width instantly with clear inputs, formula shown and shareable results.

About Implement Working Width Calculator

Effective working width is the nominal width less the overlap the operator leaves to avoid strips. Overlap is unavoidable without guidance, and every centimetre of it directly wastes fuel, time and input. Width utilisation shows how much of the machine is really doing new work each pass.

Formulas

Effective width

Effective width = nominal width - overlap; utilisation % = effective / nominal x 100

Passes

Passes = ceil(field width / effective width)

Worked example

With the default values below, Implement Working Width Calculator returns Effective Working Width of 2.350. Change any input above and every figure here is recalculated in your browser.

Inputs used

Nominal Implement Widthminimum 0.1 m
2.5 m
Overlap Per Passminimum 0 cm
15 cm
Passes To Completeminimum 1
20
Field Widthminimum 0.1 m
50 m

Results

Effective Working Width
2.350
Width Utilisation
94.00%
Passes To Cover Field Width
22
Width Covered In Given Passes
47.00

Step by step

  1. 1Values used
  2. 2Effective width
  3. 3Passes
  4. 4Effective Working Width= 2.350
  5. 5Width Utilisation= 94.00
  6. 6Passes To Cover Field Width= 22
  7. 7Width Covered In Given Passes= 47.00

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 3 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

How much overlap is typical without guidance?

Manual steering on a wide boom commonly overlaps 5-10% of the width. GPS guidance cuts it to 2-3% or less, which is where most of its fuel and input saving comes from.

Does overlap matter for tillage as well as spraying?

It wastes fuel and time in tillage, but double-spraying also risks crop damage and residue exceedances, so the cost is higher for chemicals.

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