Sugar Concentration (Brix) Calculator

About the Sugar Concentration (Brix) Calculator

Converts a solution's Brix (% sugar by weight) to its approximate specific gravity and grams of sugar per litre, useful for brewing and food processing.

How to use this calculator

1. Enter a Brix value, a specific gravity value, or a sugar content value, depending on what you know.
2. Choose the direction of conversion, so the calculator knows which quantity to solve for.
3. Read the converted result and compare it with the example ranges for beverages or food mixtures.
4. Use the output as an estimate, since temperature and ingredients can slightly affect real-world measurements.

The formula explained

Brix is commonly treated as percent sugar by mass, so a reading of \(10\) Brix means about \(10\\%\) sugar in the liquid. Specific gravity is related to Brix through an empirical conversion, which lets the calculator estimate one value from the other.

• Brix = sugar concentration in percent by mass
• SG = specific gravity, the density of the liquid compared with water
• sugar content = the amount of sugar in the mixture, usually shown as a percent or mass value

Step by step method

1. Identify which value you start with, Brix, specific gravity, or sugar content.
2. If needed, convert the starting value into Brix using the calculator's conversion rules.
3. Use the Brix result to estimate specific gravity or sugar content.
4. Check the result against your recipe, fermentation target, or measurement goal.

Worked example

Problem. A juice sample measures \(12\) Brix. Estimate its specific gravity and sugar content.

1. A reading of \(12\) Brix means the juice is about \(12\\%\) sugar by mass.
2. A \(12\) Brix liquid has a specific gravity of about \(1.048\) using the standard conversion.
3. So the sample has about \(12\\%\) sugar and a specific gravity of \(1.048\).

Tips and common mistakes

• Brix is an estimate of dissolved sugar, so very cloudy or mixed liquids can give imperfect readings.
• Temperature can affect specific gravity measurements, so use a temperature-corrected reading when accuracy matters.

Frequently asked questions