Irrigation Runtime Calculator
Enter the required volume in cubic metres and the delivered flow rate in cubic metres per hour.
A QUICK WALKTHROUGH
How to use this tool
- Enter a non-negative water volume.
- Enter a positive delivered flow rate.
- Review runtime in hours and minutes.
Formula and scope
Runtime (hours) = volume (m³) ÷ flow (m³/hour). The result can be split among zones by the user.
Limitations
Assumes the entered flow continues for the full runtime. Startup, pressure changes, scheduled downtime, zone changes and water-use permissions are not assessed.
Local calculation
Values are processed in this browser. This is a planning estimate, not agronomic or regulatory advice.
GOOD TO KNOW
Common questions
Does this include multiple zones?
It calculates total runtime at one flow rate. Calculate zones separately when their delivered flow differs.
Does this determine a crop water requirement?
No. Enter a volume determined separately for your situation.