Dilution Ratio Calculator

Enter your dilution ratio (e.g. 1:10) and total volume needed, and this Dilution Ratio Calculator tells you exactly how much concentrate and water to use. Switch between ratio and percentage mode, pick your preferred unit, and see a full breakdown of your mix.

Usually 1 — the concentrate portion of your ratio

The solvent (water) portion of your ratio

%

Enter the concentrate as a percentage of the total volume

The final total volume of solution you want to make

Results

Concentrate Needed

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Water Needed

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Total Solution Volume

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Dilution Factor

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Concentrate %

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Solution Breakdown

Results Table

Frequently Asked Questions

What is a dilution ratio?

A dilution ratio expresses how much concentrate (solute) is mixed with how much solvent (usually water) to create a solution. For example, a 1:10 ratio means 1 part concentrate to 10 parts water, giving a total of 11 parts solution. It is commonly used for cleaning products, chemicals, and detailing solutions.

How do you calculate a dilution ratio?

To calculate the volumes needed, divide your total desired volume by the sum of the ratio parts. For a 1:10 ratio and 1100 ml total: concentrate = 1100 ÷ (1+10) = 100 ml, and water = 100 × 10 = 1000 ml. This calculator does all of that automatically.

What is the solute volume formula?

The solute (concentrate) volume formula is: Solute Volume = Total Volume ÷ (Concentrate Part + Solvent Part). For example, for a 1:5 dilution with 600 ml total: Solute Volume = 600 ÷ (1+5) = 100 ml, and Water = 500 ml.

How do I make a liter of a 1:10 dilution?

For a 1:10 dilution making 1000 ml total, you need 1000 ÷ (1+10) ≈ 90.9 ml of concentrate and approximately 909.1 ml of water. Mix them together to get your 1 liter of diluted solution.

Is the dilution ratio the same as the dilution factor?

Not exactly. The dilution ratio (e.g. 1:10) describes the parts of concentrate to solvent. The dilution factor is the total fold-dilution, which equals the sum of the parts — so a 1:10 ratio has a dilution factor of 11. Some industries use the terms interchangeably, so always check the context.

Can I enter a percentage instead of a ratio?

Yes — this calculator supports both modes. Switch to Percentage mode and enter the concentrate as a percentage of the total volume (e.g. 10% means 10 ml concentrate per 100 ml total solution). The ratio is automatically derived from the percentage you enter.

Which volume units does this calculator support?

You can calculate in milliliters (ml), liters (L), fluid ounces (fl oz), or gallons (gal). All outputs are displayed in the unit you select, making it easy to work with any recipe or product instruction.

Why does the total volume equal concentrate plus water?

Because in a dilution, you are simply combining two volumes — the concentrate and the diluent (water). The total solution volume is always the sum of both parts. For a 1:10 ratio, that means 1 part concentrate + 10 parts water = 11 parts total solution.

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