Plan mixes for greenhouses, decks, and walkways. Choose dilution, rate, and allowance for overspray easily. Get consistent coverage results across every garden cleaning job.
Estimate cleaner coverage for patios, paths, and tools. Convert area into spray volume and concentrate needs. Reduce waste with zones, rates, and safety buffers today.
| Scenario | Area (m²) | Rate (L/m²) | Waste (%) | Total Spray (L) | Dilution |
|---|---|---|---|---|---|
| Patio light soil | 60 | 0.10 | 8 | 6.48 | 1:30 |
| Walkway algae | 35 | 0.14 | 12 | 5.49 | 1:20 |
| Greenhouse benches | 22 | 0.12 | 10 | 2.90 | 25 mL/L |
Outdoor cleaners are usually applied by area, so planning begins with accurate measurements. Measure length and width for flat zones, then subtract ponds, beds, and fixed furniture. For irregular shapes, break the space into rectangles and triangles and sum their areas. Recording areas by zone helps you mix only what you need and prevents runoff from over-application.
Hardscape, greenhouse benches, and tool stations often tolerate stronger solutions than delicate foliage or young seedlings. Start with the product label rate, then adjust within safe limits for heavy biofilm, algae, or greasy residues. Porous stone and weathered wood absorb more liquid, reducing apparent coverage. A small test patch confirms compatibility and expected spread. If you are cleaning edible-garden areas, choose products labeled for food-contact surfaces and rinse as directed. In sandy soils, reduce flow and use a catch tray to prevent infiltration. Always wear gloves and eye protection outdoors.
The calculator multiplies total area by the target application rate to estimate spray volume. Many garden cleaners are specified as liters per square meter or gallons per thousand square feet. After volume is known, the dilution ratio determines concentrate required. Finally, a waste factor accounts for overspray, hose hold-up, and uneven surfaces.
Use a calibrated sprayer and consistent walking speed. Fine mist improves uniformity but drifts in wind; coarse droplets reduce drift but may streak. Clean nozzles and filters before mixing. Apply in cooler hours to slow evaporation. When vertical surfaces are involved, work bottom-up to reduce streaking and ensure full contact time.
After each job, log area, mix strength, weather, and the volume actually used. Over time, you will build a site-specific coverage benchmark for patios, paths, and equipment areas. This record helps you budget concentrate, schedule refills, and standardize cleaning across seasons. Consistency lowers costs and protects plants and soil biology.
It is the spray volume applied per unit area. Use the label guidance when available. For general cleaning, start low and increase slightly only if coverage looks patchy or soils remain.
Use the method shown on your product label. If it lists a ratio like 1:20, select “Ratio.” If it lists mL per liter or ounces per gallon, select “Dose per volume.”
Yes. Overspray, hose hold-up, and uneven surfaces reduce effective coverage. A 5–15% waste factor is common. Use higher values for vertical surfaces or windy conditions.
Yes. Enter each zone’s length and width, then add it to the zone list. The calculator totals all zones and subtracts any excluded areas you enter.
Porous materials absorb solution instead of leaving it on the surface. Absorption lowers visible spread and can shorten contact time. Plan a higher waste factor and avoid flooding nearby soil.
No. It helps estimate volumes and concentrate needs, but label directions and local safety rules come first. Always spot-test sensitive plants and rinse surfaces when required.
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.