15
g
85
g
15
% w/w
15
g
15
g
85
g
15
% w/w
15
g
The Brix to Sugar Converter calculates the sucrose (sugar) content of a liquid solution from its Brix reading. The degree Brix (°Bx) scale was developed in the 19th century by Adolf Ferdinand Wenceslaus Brix and is defined as the percentage by mass of sucrose in an aqueous solution. Therefore, 1 °Bx is exactly equivalent to 1 gram of sucrose dissolved in 100 grams of solution — a direct weight/weight percentage. This makes Brix one of the most directly interpretable scales in food science.
Brix measurements are indispensable across the food and beverage industry. Winemakers use Brix to determine grape ripeness and predict potential alcohol content — each degree Brix in grape juice corresponds to approximately 0.55 % final alcohol by volume (ABV) after fermentation. Fruit juice processors use Brix to meet regulatory standards: orange juice sold in the USA must be at least 11.8 °Bx for single-strength juice. Sugar confectioners use Brix to control the sugar concentration during candy and syrup production, as different concentrations yield soft toffee, hard candy, or fondant at different temperatures.
Refractometers are the most common field instruments for measuring Brix. Handheld optical refractometers are inexpensive and portable — they measure how much a liquid bends (refracts) light, and the refractive index correlates with sugar concentration. Digital refractometers provide higher precision (±0.1 °Bx) and are used in laboratory and production settings. Hydrometers offer an alternative approach by measuring solution density, which also correlates with sugar content.
For non-sucrose sugars, a correction must be applied. Fructose and glucose have slightly different refractive indices than sucrose at the same concentration. Most food science applications use the ICUMSA (International Commission for Uniform Methods of Sugar Analysis) correction tables, but for most practical purposes the direct Brix-to-sucrose equivalence is used as a working approximation for mixed-sugar solutions. High-fructose corn syrup, honey, and fruit-derived sugars all exhibit Brix readings that slightly overestimate or underestimate total sugar compared to pure sucrose standards.
In the wine industry, Brix measured at harvest is the primary indicator of wine style: below 20 °Bx produces dry, light wines; 22–26 °Bx produces full-bodied dry wines; above 28 °Bx is required for dessert wines and late-harvest styles. For winemakers without a laboratory, a simple handheld refractometer and this converter provide all the information needed for harvest decisions and fermentation planning.
Since 1 °Bx = 1 g sucrose per 100 g solution, the sugar percentage equals the Brix value directly. Sugar mass in grams is (Brix / 100) multiplied by the solution mass. Water content is solution mass minus sugar mass.
A Brix reading of 15 on 100 g of grape juice means the juice contains 15 g of dissolved sugars (expressed as sucrose equivalents) and 85 g of water. If winemaking, this predicts approximately 8.25 % ABV after complete fermentation (15 x 0.55).
Inputs
Results
1 litre (approx. 1000 g) of orange juice at 11.8 Brix (the US legal minimum) contains 118 g of dissolved sugars.
Inputs
Results
500 g of grape must at 28 Brix contains 140 g of fermentable sugars — enough to produce approximately 15.4% ABV wine if fully fermented.
1 °Bx means that 1 gram of sucrose is dissolved in 100 grams of the aqueous solution. It is equivalent to 1 % w/w sucrose concentration. This is the formal definition from the International Sugar Scale.
For pure sucrose solutions, yes — Brix equals percent sugar by mass exactly. For solutions containing glucose, fructose, or mixed sugars, Brix still reads the refracted light, giving an approximate sucrose-equivalent; the actual individual sugar percentages may differ slightly.
Ripeness Brix varies by species: strawberries 7–10 °Bx (ripe), apples 12–16 °Bx, grapes 18–26 °Bx, mangoes 15–20 °Bx, pineapple 12–15 °Bx. Higher Brix generally means sweeter fruit.
Use a handheld optical refractometer (available for $20–50). Place 2–3 drops of juice on the prism, close the cover, and read the Brix value through the eyepiece. Calibrate with distilled water to 0.0 °Bx before use.
Commercial tomato paste typically runs 28–36 °Bx. Crushed tomatoes are 4–6 °Bx. Pasta sauce (ready-to-eat) typically sits at 8–12 °Bx depending on added sugar and concentration.
Yes, approximately. The rule of thumb is: potential ABV = Brix x 0.55. So 22 °Bx grape must can produce about 12.1 % ABV wine if completely fermented. More precise predictions use the formula: ABV = (Brix x 0.591) - 0.54 for red wines.
Honey typically reads 78–84 °Bx, representing its very high sugar content (primarily fructose and glucose). This high Brix corresponds to aw below 0.60, which is why honey is shelf-stable and antimicrobial.
Regular cola soft drinks typically measure 10–12 °Bx, representing the dissolved sugar content. Diet/zero-calorie varieties read near 0 °Bx since they use non-caloric sweeteners.
Yes, Brix is conventionally measured at 20 °C. Most modern refractometers include automatic temperature compensation (ATC). If using an older refractometer without ATC, apply a correction: add or subtract approximately 0.06 °Bx per degree Celsius above or below 20 °C.
In chocolate syrup and cocoa powder production, Brix is used to control the concentration of dissolved solids in the final product and during refining. Dark chocolate ganache, for example, is formulated to specific Brix values to control water activity and shelf stability.
Roboculator Team
The Roboculator Team explains calculations, planning tools, and practical formulas in clear language for real-life situations.
How helpful was this calculator?
Be the first to rate!
Water Activity Calculator
Specialized Food Science Calculators
Specific Gravity to Brix Converter
Specialized Food Science Calculators
pH Food Calculator
Specialized Food Science Calculators
Titratable Acidity Calculator
Specialized Food Science Calculators
Salt Concentration Calculator
Specialized Food Science Calculators
Sugar Concentration Calculator
Specialized Food Science Calculators
