Measure circular, rectangular, strip, or sector wetting in gardens. Adjust units, emitters, and overlap easily. Review charts, tables, formulas, and downloads for better planning.
| Zone | Shape | Input Size | Emitters | Overlap Factor | Estimated Wetted Area |
|---|---|---|---|---|---|
| Herb Bed | Rectangle | 2.0 × 1.2 m | 2 | 0.95 | 4.56 m² |
| Tree Basin | Circle | 1.4 m diameter | 1 | 0.90 | 1.39 m² |
| Hedge Line | Strip | 3.0 × 0.4 m | 3 | 0.85 | 3.06 m² |
| Corner Patch | Sector | 1.5 m radius, 90° | 1 | 0.92 | 1.63 m² |
Circle: Wetted Area = π × (Diameter ÷ 2)²
Rectangle: Wetted Area = Length × Width
Strip: Wetted Area = Length × Width × Emitters
Sector: Wetted Area = π × Radius² × Angle ÷ 360
Adjusted Total Area: Base Area × Overlap Factor × Application Factor × Emitters
Overlap factor reduces or expands coverage based on spacing overlap. Application factor adjusts the practical wetting estimate using local field observations.
Select the wetted shape that best matches your garden zone. Enter dimensions using one unit system. Choose your desired output area unit.
Set the number of emitters serving the zone. Enter an overlap factor below 1.00 for tighter overlap, or above 1.00 for broader effective wetting.
Add an application factor if field conditions increase or reduce actual spread. Submit the form to view the total wetted area above the calculator.
Use the chart to compare per-emitter coverage. Export the results with the CSV or PDF buttons for field records or irrigation planning notes.
This gardening calculator estimates how much ground becomes wet under common irrigation layouts. It supports circular basins, rectangular beds, strip layouts, and sector coverage. The tool helps compare irrigation patterns for lawns, borders, hedges, kitchen gardens, and fruit trees.
Gardeners often need more than a simple area formula. Real wetting changes with emitter count, spacing, overlap, and field conditions. That is why this calculator includes overlap and application factors. These advanced inputs help create a more practical estimate for planning irrigation zones.
Use it when setting drip lines, checking basin coverage around trees, or planning the spread of water along hedges and raised beds. It can also help during redesign work when you want to compare existing coverage against a new irrigation layout.
The example table shows common garden scenarios. The formula section explains how each shape is handled. The graph gives a quick visual view of per-emitter coverage. Export options make it easier to save your findings for maintenance logs, landscaping proposals, or future adjustments.
Always compare the result with field observation. Soil texture, slope, mulch, pressure, and irrigation duration all affect the final wetted area. This tool gives a strong planning estimate, but testing in real garden conditions remains the best final check.
Wetted area is the ground surface that receives water from irrigation. It helps gardeners estimate coverage around plants, beds, trees, and drip zones for better watering decisions.
Overlap factor adjusts the estimate when wetting patterns intersect or leave gaps. It helps reflect how closely spaced emitters change effective watering coverage across a garden zone.
Use the circle option for tree basins, round watering rings, or isolated emitters that spread water evenly around one center point.
Strip wetting works well for hedges, narrow beds, row crops, and drip lines where repeated emitters create long bands of moisture instead of one compact patch.
No. It is a planning tool. Soil type, pressure, slope, mulch, and run time change real wetting behavior, so field checks should confirm the final coverage.
Application factor lets you adjust the base formula for practical conditions. Use it when observed wetting is larger or smaller than the geometric area suggests.
Choose the unit that matches your design notes or site measurements. Square meters and square feet are usually the easiest for garden planning.
Yes. After calculation, use the CSV or PDF buttons to save the summary. This helps with reporting, planning, and irrigation maintenance records.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.