Irrigation Flow Rate Converter
Convert irrigation flow rates between litres/second, m³/hour, litres/minute and US gallons/minute.
1 L/s = 3.6 m³/h = 60 L/min = 15.85 US GPM. Enter your flow in L/s (e.g. a channel measurement or pump rating) to read every common irrigation unit at once.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Farmers and irrigation engineers use the free Irrigation Flow Rate Converter to get an accurate answer in seconds — no formulas to remember, works offline in the field.
About Irrigation Flow Rate Converter
Irrigation flow rates come in a confusing mix of units — pump catalogues quote m³/h, drip designers use L/h, field measurements come as L/s, and imported equipment lists US gallons per minute. Mixing them up leads to badly-sized systems. This tool converts any flow given in litres per second into m³/h, L/min and US GPM at once, so you can match a pump, a channel measurement and a system design without arithmetic errors.
How to use Irrigation Flow Rate Converter
- 1Enter your system or field values into the inputs.
- 2Read the headline result and the supporting breakdown.
- 3Apply the guidance in the note to your irrigation plan.
Why use Irrigation Flow Rate Converter?
- ✓Uses the standard, citable irrigation engineering formula
- ✓Clear inputs with sensible defaults
- ✓Instant result with the working shown
- ✓Free, fully in-browser and private
Frequently asked questions
How do I convert L/s to m³/h?+
Multiply litres per second by 3.6. So 10 L/s = 36 m³/h. To go the other way, divide m³/h by 3.6. This tool also gives L/min (×60) and US GPM (×15.85) from the same input.
How can I measure my flow rate in L/s?+
The simplest field method is the bucket-and-stopwatch: time how many seconds to fill a known-volume bucket, then divide volume (litres) by time (seconds). For pipes, a flow meter or the pump's rated discharge gives L/s directly.
Is this tool free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline and your data never leaves the device.
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