Calculate exactly how much water your farm needs using FAO-standard ET₀ equations, real weather data, and your soil profile. No expensive subscriptions. No server overload. Just results.
Enterprise-grade water budgeting without the enterprise price tag. Your calculations run in your browser, not on our servers.
Uses the Penman-Monteith equation with crop-specific coefficients (Kc) to calculate precise evapotranspiration. The same method used by the UN Food and Agriculture Organization.
Automatically fetches 7-day forecast and historical data from Open-Meteo. Cached locally for instant reloads. No API key needed, no rate limits to worry about.
Generate professional water budget reports as PDFs right in your browser. No server processing, no wait times. Your multi-core laptop does it faster than any cloud server.
Install on your own server in under 5 minutes. Your farm data stays on your server. No third-party analytics, no data harvesting. Complete privacy by design.
Deploy in a subfolder, subdomain, or root domain without changing a single line of code. Dynamic base URL detection means zero configuration headaches.
SQLite with WAL mode, edge-cached weather data, and client-side caching. Pages load in under 200ms. No bloated frameworks, no 3-second white screens.
Enter your farm location, select your soil type, and define your irrigation zones with crop-specific parameters. The app automatically fetches your local weather data.
The engine calculates daily soil moisture balance using FAO Penman-Monteith ET₀, crop coefficients, rainfall, and your soil's water-holding capacity. All in your browser.
View your 7-day irrigation schedule, download a professional PDF report, and share it with your team. Updated daily with fresh weather forecasts.
Join thousands of farmers who have ditched guesswork for science-based irrigation planning.
Start Your Free Water Budget →