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Spray Volume Per Acre Calculator

Work out spray volume per acre instantly with clear inputs, formula shown and shareable results.

About Spray Volume Per Acre Calculator

Application volume is the standard sprayer calibration identity: L/ha = total nozzle output (L/min) x 600 / (swath width in metres x speed in km/h). The factor 600 converts minutes and kilometres into hectares. Getting this right matters more than the tank mix, because volume error translates directly into dose error.

Formulas

Sprayer calibration

L/ha = flow (L/min) x 600 / (swath width (m) x speed (km/h))

Acre basis

L/acre = L/ha x 0.4047

Worked example

With the default values below, Spray Volume Per Acre Calculator returns Spray Volume Per Acre of 77.70. Change any input above and every figure here is recalculated in your browser.

Inputs used

Output Per Nozzleminimum 0.01 L/min
0.8 L/min
Number Of Nozzlesminimum 1
12
Effective Swath Widthminimum 0.1 m
6 m
Forward Speedminimum 0.1 km/h
5 km/h

Results

Spray Volume Per Acre
77.70
Spray Volume Per Hectare
192.00
Total Boom Flow
9.600
Area Covered Per Hour
3.000

Step by step

  1. 1Values used
  2. 2Sprayer calibration
  3. 3Acre basis
  4. 4Spray Volume Per Acre= 77.70
  5. 5Spray Volume Per Hectare= 192.00
  6. 6Total Boom Flow= 9.600
  7. 7Area Covered Per Hour= 3.000

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.
  • Pesticide application rates are legally binding label conditions. Verify calibration by physical measurement before spraying and observe buffer zones and re-entry intervals.

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

Pesticide application rates are legally binding label conditions. Verify calibration by physical measurement before spraying and observe buffer zones and re-entry intervals.

Frequently Asked Questions

How do I check the calculated volume in the field?

Spray a measured area with a known tank volume and compare. Or catch output from each nozzle for one minute — replace any nozzle more than 10% off the average, as worn tips over-apply.

Does driving faster save chemical?

No. Faster travel cuts the volume applied per hectare but the product concentration in the tank is unchanged, so the dose per hectare drops and control fails. Re-calibrate the mix if the speed changes.

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