Plan Watering with Confidence - Anytime, Anywhere
Smart irrigation planning for farmers, gardeners, and agricultural professionals. Based on FAO standards. 100% offline.
Smart Irrigation Calculator
Soil & Weather Insights
Analytics Dashboard
Seasonal Recommendations
History & Records
60+ Crop & 6 Soil Types
🌱 How It Works
Irrigation Calculator Pro is built on FAO-56 standards, the global reference for crop water management. FAO-56 defines a simple yet powerful framework:
Reference Evapotranspiration (ETâ‚€) - the baseline water use from a well-watered grass surface, usually provided by weather stations.
Crop Coefficient (Kc) - a factor that adjusts ET₀ to match a specific crop’s water demand, which changes as the plant grows.
Total Available Water (TAW) - the amount of water a soil type can hold within the root zone.
Management Allowable Depletion (MAD) - the safe threshold for how much of that stored water can be used before irrigation is needed.
Traditionally, calculating irrigation means juggling all these variables manually or in spreadsheets. With Irrigation Calculator Pro, the process is reduced to just a few taps: select your crop and soil type, enter your field and weather data, and the app instantly delivers how much water to apply and when. Behind the scenes, it runs the FAO-56 equations and alerts you when soil moisture approaches the MAD threshold, ensuring your crops get exactly what they need without waste.
âš¡ Features with Benefits
Smart Irrigation Calculator: Instantly turns complex FAO-56 formulas into a simple watering plan.
Analytics Dashboard: Track water use, soil health, and costs to make smarter, data-driven decisions.
Soil & Weather Insights: Factor in soil type, rainfall, and ETâ‚€ for field-specific accuracy.
Seasonal Recommendations: Adjust irrigation as needs shift from spring through winter.
History & Records: Review past calculations to plan and compare across seasons.
60+ Crops & 6 Soil Types: Works for everything from backyard gardens to large farms.
Frequently Asked Questions
💰 Pricing & Availability
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Irrigation Calculator Pro is a one-time purchase of €1.99 / $1.99 (price may vary slightly depending on your country or App Store region). There are no subscriptions, ads, or hidden fees.
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No. Once you buy the app, all future updates are included for free.
📱 Compatibility & Requirements
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Irrigation Calculator Pro is designed for iPhone running iOS 18.5 or later. It works on all modern iPhone models, including the latest series.
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While the app is optimized for iPhone, it can be installed on iPad as well.
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No. The app is 100% offline. All calculations happen directly on your device.
🌾 Features & Usage
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Irrigation Calculator Pro helps farmers, gardeners, and agricultural professionals calculate water volume, timing, and irrigation frequency. It uses FAO-standard formulas (ETâ‚€, Kc, soil AWC, rainfall, root depth) to provide accurate results.
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Corn, Wheat, Rice, Barley, Oats, Sorghum, Millet, Rye, Soybeans, Peanuts, Beans, Peas, Lentils, Chickpeas, Cowpeas, Apples, Oranges, Grapes, Strawberries, Bananas, Mangoes, Avocados, Pineapples, Peaches, Pears, Cherries, Plums, Tomatoes, Potatoes, Lettuce, Carrots, Onions, Cabbage, Broccoli, Cauliflower, Cucumbers, Peppers, Spinach, Kale, Sweet Corn, Green Beans, Cotton, Sugarcane, Tobacco, Coffee, Tea, Cocoa, Rubber, Jute, Alfalfa, Pasture, Clover, Ryegrass, Bermudagrass, Fescue
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Six standard soil types (sandy, loamy, clay, and more) with correct Available Water Capacity (AWC) values are built in.
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Yes. You can switch between metric (mm, L) and imperial (inches, gallons) at any time.
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Yes. The app keeps a complete history of your irrigation runs, searchable by crop, soil, or date.
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Yes. Irrigation Calculator Pro helps you manage water use across different seasons with smart scheduling.
🔒 Privacy & Security
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No accounts, logins, or sign-ups are required.
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No. All data stays on your iPhone. The app does not track you or send information to servers.
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No. The app is completely ad-free.
🚀 Updates & Support
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Yes. Irrigation Calculator Pro is actively maintained and will continue to improve with new features and enhancements.
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You can reach us anytime at contact@techy.how or through our support page.
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Absolutely. We welcome feedback and suggestions from users. Just send us an email and we’ll consider it for future updates.