8. Dez. 2025
How much does ozone water cost? Per litre and per bucket
This guide helps you calculate the approximate cost of ozone water per litre, per bucket and per year, including maintenance.
How much does ozone water cost in daily use? See the cost per litre, per bucket and per year and compare it with traditional cleaning products.
How much does ozone water cost in practice
How much does ozone water cost?
Ozone water may sound high-tech, but the cost per litre is low and easy to calculate. In practice you pay for tap water, a small amount of electricity and periodic maintenance on the ozone water machine or device.
Step 1: cost per litre
A common rule of thumb is about 0.0017 € per litre of ozone water, well under one fifth of a cent per litre. This already includes the basic cost of water and machine use.
- 1 litre of ozone water ≈ 0.0017 €
- 10 litres ≈ 0.017 €
- 100 litres ≈ 0.17 €
The general introduction can be found in the main article What is ozone water. This guide zooms in on cost.
Step 2: cost per bucket or spray bottle
Cleaning teams often work with 6‑litre buckets or smaller spray bottles. Using the same rule of thumb you can easily convert:
- 6‑litre bucket ≈ 6 × 0.0017 € ≈ 0.01 € (about 1 cent).
- 0.75‑litre spray bottle ≈ 0.0013 € (well below 1 cent).
- 10 buckets per day ≈ 0.10 € per day in ozone water.
Because you generate ozone water on demand, there is no waste from half‑used bottles or products that expire. You simply make what you need for each round.
Step 3: including maintenance
An ozone water machine needs periodic maintenance. A widely used reference is around 1000 operating hours or roughly 500,000 litres of water before parts are replaced.
- Maintenance budget: for example 75 € in parts per 500,000 litres.
- Maintenance per litre: 75 € / 500,000 ≈ 0.00015 € per litre.
- Total per litre: 0.0017 € + 0.00015 € ≈ 0.00185 € (still < 0.002 €).
The exact figures depend on your contract, energy price and usage pattern, but this shows that maintenance adds only a small amount per litre.
Example site: annual cost
Imagine a site using 40 buckets of 6 litres per day, 5 days a week, 48 weeks a year:
- 40 buckets × 6 litres = 240 litres per day.
- 240 litres × 5 days = 1200 litres per week.
- 1200 litres × 48 weeks ≈ 57,600 litres per year.
At 0.00185 € per litre (including maintenance) this adds up to:
- 57,600 litres × 0.00185 € ≈ 106.56 € per year in ozone water.
This replaces a substantial part of your traditional cleaning products, reduces plastic packaging and simplifies stock management.
Comparing with traditional products
With traditional products you pay not only for the contents, but also for packaging, transport and storage. Ozone water is produced on site from tap water.
- Fewer different products on the shelf.
- Less plastic packaging and waste.
- No leftovers from opened bottles that have to be thrown away.
The guide Where to use ozone water shows which surfaces and rooms you can include in your rounds.
Efficiency with the two-cloth method
Cost per litre is only part of the story. Workflow efficiency is just as important. By using ozone water everywhere together with the two-cloth method, training new staff becomes much easier.
- One type of water and one explanation everywhere.
- Cloth A cleans, cloth B dries – done.
- Fewer discussions about “which bottle do we use here?”.
You can find the full instruction in the guide Two-cloth method. For a cleaning schedule, see How to clean with ozone water.
Next articles in the series
This cost breakdown is part of the series around what is ozone water. Related articles include:
How an ozone water device works
Further reading