Sprayer Calibration Calculator
Fill in the values and the answer updates as you type.
How the Sprayer Calibration Calculator works
Spray volume in gallons per acre = 5,940 × flow per nozzle (gal/min) ÷ (speed in mph × nozzle spacing in inches). The constant 5,940 converts miles, inches, minutes, and acres. Acres per tank = tank size ÷ spray volume, and product per tank = product rate per acre × acres per tank. Always check the real flow by catching the output of each nozzle for one minute, since nozzles wear. Follow the product label for rates, water volumes, and safety, and wear the protective equipment it asks for. Example: with Flow per nozzle 0.4 gal/min, Ground speed 6 mph, Nozzle spacing 20 in, Tank size 300 gal, and Product rate 24 fl oz per acre, the result is Spray volume (gal per acre) = 19.8; Acres covered per tank = 15.2; Product per tank (fl oz) = 364.
Inputs and results
The Sprayer Calibration Calculator takes 5 inputs and gives 5 results.
What you enter
- Flow per nozzle (gal/min) — starts at 0.4.
- Ground speed (mph) — starts at 6.
- Nozzle spacing (in) — starts at 20.
- Tank size (gal) — starts at 300.
- Product rate (fl oz per acre) — starts at 24.
What you get
- Spray volume (gal per acre)
- Acres covered per tank
- Product per tank (fl oz)
- Product per tank (US gal)
- Spray volume (L per ha)
Example: Sprayer Calibration Calculator with the starting values
With flow per nozzle 0.4 gal/min, ground speed 6 mph, nozzle spacing 20 in, tank size 300 gal and product rate 24 fl oz per acre, the calculator returns:
| Spray volume (gal per acre) | 19.8 |
|---|---|
| Acres covered per tank | 15.2 |
| Product per tank (fl oz) | 364 |
| Product per tank (US gal) | 2.84 |
| Spray volume (L per ha) | 185.2 |
Change any value above and the results update straight away.
Sprayer Calibration Calculator FAQ
How do I use the Sprayer Calibration Calculator?
Enter flow per nozzle, ground speed, nozzle spacing and tank size in the fields, then read spray volume (gal per acre), acres covered per tank, product per tank (fl oz) and product per tank (us gal) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Sprayer Calibration Calculator calculate?
Spray volume per acre and product to add to each tank. It returns spray volume (gal per acre), acres covered per tank, product per tank (fl oz) and product per tank (us gal) from the 5 values you provide.
What values does the Sprayer Calibration Calculator start with?
It opens with flow per nozzle 0.4 gal/min, ground speed 6 mph, nozzle spacing 20 in and tank size 300 gal so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Sprayer Calibration Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Sprayer Calibration Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.