Measure solution concentration precisely from mass and volume. Plan dilutions, compare units, and export reports. Built for fast laboratory calculations and clearer documentation today.
| Example | Mass | Volume | % w/v | mg/mL | g/L |
|---|---|---|---|---|---|
| Buffer prep A | 5 g | 100 mL | 5.00% | 50.00 | 50.00 |
| Cleaning mix B | 2.5 g | 250 mL | 1.00% | 10.00 | 10.00 |
| Media prep C | 12 g | 300 mL | 4.00% | 40.00 | 40.00 |
| Prototype wash D | 0.8 g | 80 mL | 1.00% | 10.00 | 10.00 |
| Stock sample E | 25 g | 500 mL | 5.00% | 50.00 | 50.00 |
1) Weight/volume concentration:
% w/v = (mass in grams / volume in mL) × 100
2) Required mass:
mass in grams = (% w/v × volume in mL) / 100
3) Required volume:
volume in mL = (mass in grams × 100) / % w/v
4) Dilution planning:
C₁V₁ = C₂V₂, where concentration units stay consistent.
The calculator first converts mass into grams and volume into milliliters. That keeps every mode consistent and reduces common unit conversion mistakes.
% w/v means grams of solute in every 100 mL of final solution. A 5% w/v mixture contains 5 grams dissolved and adjusted to a total volume of 100 mL.
They are related, not identical labels. For example, 1% w/v equals 10 mg/mL. This calculator shows both values so you can compare laboratory and production-style concentration expressions quickly.
Use dilution mode when you already have a stronger stock solution. It tells you how much stock to use and how much diluent to add for a lower target concentration.
Unit conversion prevents mixed-input errors. A mass entered in milligrams and a volume entered in liters still become consistent before the formula runs, which keeps the output reliable.
Yes. The form accepts liters and milliliters. Internally, the page converts liters to milliliters, performs the calculation, and then reports clear concentration results.
A normal dilution lowers concentration. If your target equals or exceeds the stock, you need evaporation, added solute, or a different preparation method instead.
The graph changes with the selected mode. It helps visualize how concentration, required mass, required volume, or dilution components shift when one key variable changes.
Common uses include solution prep, testing fluids, media preparation, cleaning mixtures, prototype workflows, and any process requiring quick weight-to-volume concentration checks with exportable records.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.