Find how much of two products to blend for the right strength, how much concentrate or water to add to an off-spec batch and the strength of several batches blended together. Works in % w/w, °Brix and g/L.
Pre-sizing and estimating tool: results do not replace design, calculations or reports signed by a licensed professional, nor verification against the applicable codes and standards.
How strength changes with the ratio or with the amount added. The dot marks the result.
Amount, volume and solute of each part. The solute total checks the result.
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It is the quickest way to find the ratio for blending two products of different strengths to reach a third: parts of the stronger = C − B and parts of the weaker = A − C. In the example, going from 65 and 20 °Brix syrups to 45 °Brix takes 25 parts of the first to 20 of the second, or 1,111 lb + 889 lb in a 2,000 lb batch. It works for syrups, juices, brines, cleaning solutions and any product you can dilute.
The math is the same but the basis changes. In % w/w and °Brix the amounts are weights, and the result is exact. In g/L strength is per volume, so amounts are volumes and the math assumes volumes add up, which does not hold for strong acids, alcohol and very concentrated solutions. Do not mix bases: a % w/w strength cannot be combined directly with a g/L one without converting.
Use correction mode: enter the amount in the tank, the measured strength and the target. If the batch is weak, the calculator uses product A (the stronger one); if it is strong, diluent B. In the example, 1,600 lb at 42 °Brix needs 240 lb of the 65 °Brix syrup to reach 45 °Brix, and the batch grows to 1,840 lb. Add it gradually, mix and measure again before release.
In batch mode, paste up to four lines with name, amount and strength. The result is the average weighted by amount: 1,000 lb at 44, 600 lb at 47 and 400 lb at 41 °Brix give 2,000 lb at 44.30 °Brix. The simple average of the readings would be 44.00 °Brix, a common mistake when batch sizes differ.
Only to convert weight to volume, which helps check tank capacity or read a sight glass. In the example, 1,111 lb of A take 101 gal (11.0 lb/gal) and 889 lb of B take 98.8 gal (9.0 lb/gal); the 2,000 lb final batch at 10.0 lb/gal takes 200 gal. The example values are approximate for sucrose solutions at 68 °F: use your product’s, measured with a hydrometer.
Asking for a strength outside the range between A and B (impossible, and the calculator warns you); blending by volume when strength is by weight; reading the refractometer at different temperatures; and sampling before the tank is mixed. People also forget that diluting grows the batch: check tank volume and container count.
This one handles blends and corrections of finished products, with no reaction. To dilute sulfuric acid, caustic soda or bleach, with heat of dilution and final temperature, use the dilution calculator; to convert ppm, mol/L and percent, the concentration converter; and to prepare and standardize lab solutions, the solution preparation calculator. The next-step buttons carry this page’s values over to them.
Important notice: Indus Metrics tools produce estimates and pre-sizing results from the data you enter and from published engineering methods. They do not replace design, calculations or reports signed by a licensed professional engineer (PE), nor verification against the applicable codes, standards and regulations, such as OSHA rules and the ASME codes. Material and fuel properties vary: check manufacturer data or your own process analyses before deciding. By using this site you agree to the Terms of Use.
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