Mix garden disinfectants with confidence and less waste. Choose units, presets, costs, and batch size. See concentrate, water, and ratio results in seconds clearly.
| Scenario | Input | Output (summary) |
|---|---|---|
| Tools and pruners | Stock 5%, target 0.5%, final 10 L | Concentrate 1.0 L, water 9.0 L |
| Pots and trays | Ratio 1:9, final 1 US gal | Concentrate 0.10 gal, water 0.90 gal |
| Bench wipe-down | Stock 6%, target 1000 ppm, final 5 L | Concentrate 0.083 L, water 4.917 L |
| Small spray bottle | Stock 8.25%, target 0.3%, final 500 mL | Concentrate 18 mL, water 482 mL |
Garden tools, pots, benches, and irrigation parts can spread fungal spores, bacteria, and viruses between plants. Measuring concentrate and water precisely helps you reach an effective working solution while avoiding plant damage, corrosion, and unnecessary chemical use. This calculator standardizes mixing across common units and container sizes.
Product labels may describe active ingredient as a percent solution or as ppm (parts per million) for the working mix. In water-like solutions, 1 mg/L is approximately 1 ppm. Converting each strength to a fraction lets the calculator compare stock and target values consistently, even when you switch display units.
The strength-based method uses C1×V1=C2×V2 to compute the concentrate volume needed for your final batch size. The parts-based method divides the total volume into “parts,” which matches many garden disinfectant directions such as 1:9 or 1:19. Optional rounding helps you measure with common jugs or syringes.
When you enter a sprayer size, the tool estimates how many fills your batch provides. This is useful for greenhouse benches, pruning runs, or recurring tool dips. Planning batches reduces mid-job mixing, improves contact-time compliance, and supports safer storage because you can mix only what you need.
Always follow label directions for contact time, surface compatibility, and disposal. Use clean containers, measure concentrate first, then top up with water for better control. Label the bottle with date and strength, and avoid mixing different chemistries in the same sprayer. Rinse tools when required by the label.
Use strength-based when you know stock and target strengths. Use ratio when your label gives parts like 1:9. Both return concentrate and water volumes for your final batch.
Yes. Select ppm for the target unit and percent for the stock unit. The calculator converts both to a common fraction internally, then returns an equivalent working strength.
Dilution can only reduce strength. If target is equal to or higher than stock, you would need to concentrate the product, not dilute it, so the tool blocks that case.
Rounding adjusts the displayed concentrate amount to an easy measuring increment (for example 5 mL). Water is adjusted to keep the final volume consistent. Set rounding to 0 to disable.
No. Cost is calculated for concentrate only, based on your entered cost per liter and the computed concentrate volume. Water costs vary widely and are usually negligible for small batches.
Follow the label. Many disinfectants lose activity over time or when exposed to light and dirt. Mix fresh when possible, keep containers closed, and clearly label the date and strength.
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.