Sprayer water-only calibration calculator

Calculate mean nozzle water flow and water application rate with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use mean nozzle water flow and water application rate to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Water caught per nozzle (mL)
500,600,400
Collection time (seconds)
30
Nozzle spacing (m)
0.5
Measured travel speed (km/h)
6
Mean nozzle water flow (L/min)
1
Water application rate (L/ha)
200
Individual nozzle flows (L/min)
1, 1.2, 0.8
Largest deviation from mean flow (%)
20

Try another scenario

Water caught per nozzle (mL)
250,250
Collection time (seconds)
15
Nozzle spacing (m)
0.25
Measured travel speed (km/h)
4
Mean nozzle water flow (L/min)
1
Water application rate (L/ha)
600
Individual nozzle flows (L/min)
1, 1
Largest deviation from mean flow (%)
0
Calculation method

Calculation method

Mean nozzle water flow (L/min)

Mean collected mL × 60 / (1000 × collection seconds).

Water application rate (L/ha)

600 × mean L/min / (speed km/h × nozzle spacing m).

Individual nozzle flows (L/min)

Each collected volume × 60 / (1000 × seconds).

Largest deviation from mean flow (%)

Largest absolute individual-flow deviation / mean flow × 100.

Symbols and units
a
Water caught per nozzle (mL)
b
Collection time (seconds)
c
Nozzle spacing (m)
d
Measured travel speed (km/h)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Water-only broadcast boom calibration at measured speed, spacing and collection time. Returns water rates and measured variation; it does not choose pressure, nozzles, pesticide dose or an acceptable uniformity threshold.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

UGA Extension: measured sprayer calibration and unit conversions ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

Share this page
Share this calculator

Leave unchecked to share the page without your entered values.