Irrigation Water Usage Calculator

• Free online irrigation water usage calculator supporting drip, sprinkler, surface, center-pivot, and micro irrigation methods.
• Based on crop type, growth stage, and irrigation method — combined with ET0 and irrigation efficiency — it estimates total water volume, water per unit area, irrigation depth, plus irrigation duration and flow rate, helping you plan water-saving irrigation.

1. Open the tool page — no installation needed.
2. Select the crop type, growth stage, and irrigation method, then enter the area, area unit, ET0, and irrigation efficiency.
3. Click "Calculate" to view the result. Use "Example Data" to try a sample, or "Clear Inputs" / "Reset All" to clear.

• This tool is completely free and requires no sign-up.
• Everything runs locally in your browser — your data never leaves your device.

Free online irrigation water usage calculator supporting drip irrigation, sprinkler irrigation, surface irrigation and more. Scientifically calculate irrigation water requirements based on crop type, growth stage, and soil conditions for agricultural water conservation planning.

Open the tool page — no installation needed. Select the crop type, growth stage, and irrigation method, then enter the area, area unit, ET0, and irrigation efficiency. Click "Calculate" to view the result. Use "Example Data" to try a sample, or "Clear Inputs" / "Reset All" to clear.

This tool is completely free and requires no sign-up. Everything runs locally in your browser — your data never leaves your device.

Yes, Irrigation Water Usage Calculator is completely free. No download or installation required — it runs right in your browser.