Choose ratio or percent method for mixing onsite. Convert gallons and liters with confidence fast. Print results, share batches, and reduce rework risks daily.
| Scenario | Method | Inputs | Output Summary |
|---|---|---|---|
| Surface wipe-down | Percent | Stock 5%, Target 0.5%, Final 20 L | Concentrate 2 L, Water 18 L |
| Tool decontamination | Percent | Stock 12.5%, Target 0.8%, Final 15 L | Concentrate 0.96 L, Water 14.04 L |
| General washdown | Ratio | 1:9, Final 10 US gal | Concentrate 1.00 gal, Water 9.00 gal |
| Light misting | Ratio | 1:49, Final 25 L | Concentrate 0.50 L, Water 24.50 L |
Units are converted internally using liters, then shown back in your selected unit. Rounding helps match available measuring tools onsite.
On construction sites, disinfectant mixing must be repeatable across shifts. Standardizing the target strength reduces under‑treatment and avoids material damage. This calculator outputs concentrate and water volumes for a chosen final batch, helping supervisors issue clear mixing instructions to every sprayer operator. It also supports common tank sizes like 5, 15, and 25 liters with consistent scaling.
Labels typically specify either a percent concentration or a ratio such as 1:9. The percent method uses C1V1=C2V2 to scale from stock to target. The ratio method divides the final volume into total parts, then assigns one part to concentrate and the remainder to water. When stock is pre‑mixed, ratio mode keeps decisions simple for general washdowns.
Field containers vary from liters to gallons. The calculator converts everything through liters internally, then reports in the selected unit for easy measuring. Batch count multiplies totals so you can prepare several identical tanks without re‑entering values, supporting multi‑zone cleaning schedules. Rounding settings match the precision of jugs, syringes, or measuring cups kept in the site store.
Real sites lose liquid to hose priming, overspray, and container residue. The allowance input increases the planned volume by a selected percentage, keeping crews from remixing mid‑task. Using a small allowance also helps maintain contact time, since applicators are less likely to thin mixes to stretch supply. Track typical loss rates by task and adjust allowance to improve forecasting.
Exportable results improve traceability. A saved CSV supports daily logs, while a printed PDF can be attached to method statements or hygiene checklists. Consistent documentation helps align subcontractors, simplifies audits, and supports training by showing the same numbers every time. Record date, area cleaned, and responsible person to strengthen compliance records. If specifications change, update targets and reprint sheets so crews never rely on outdated mix cards posted in lockers or taped to sprayers again.
Use the stock percent from the container label and the target percent from your method statement. Enter the final volume you want in the tank. The calculator returns concentrate and water volumes for that batch.
Choose ratio mode when the label specifies 1:X, or when crews mix from pre-portioned concentrates. Ratio mixing is fast onsite and reduces mistakes when percent figures are not provided.
Allowance increases the planned final volume to cover sprayer priming, overspray, and residue. A 5% allowance multiplies the final volume by 1.05, then splits it into concentrate and water.
Yes. Set the batch count to the number of tanks you need. The calculator multiplies concentrate and water totals so you can measure once and distribute consistently across crews.
The math does not change. Units only change how the same volumes are displayed. Internally the calculator converts to liters, performs calculations, then converts back to your selected unit.
No. It only performs the mixing math. Always follow label directions for allowed strengths, surface compatibility, contact time, and required PPE. Use the calculator to apply those requirements consistently.
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.