Concentration Calculator
Calculate the exact mass/volume concentration of a solution without memorizing metric prefixes. Enter any two known variables to instantly solve for the third, complete with step-by-step unit conversion proofs.
Mastering the Concentration Forumla
Mass Concentration (also called mass density) describes how much solid substance (solute) is dissolved inside a specific volume of liquid (solvent). The formula itself is trivial—the challenge is ensuring your metric units are universally aligned before hitting the divide button.
The Baseline Formula
Where C is Concentration, m is the Mass of the Solute, and V is the Total Volume of the Solution.
Solving for other components
Because of the simple linear nature of the equation, if you have a specific target concentration you need to hit, you can algebraically rearrange the formula to find exactly how much powder or liquid you need to start with:
Finding Required Mass
Multiply the target Concentration by your container's Volume.
Finding Target Volume
Divide the Mass you have available by the target Concentration.
Dealing with PPM and PPB
In environmental science and water testing, values are so diluted that using standard grams per liter (g/L) results in messy decimals like 0.000005 g/L. Instead, scientists use Parts Per Million (ppm) or Parts Per Billion (ppb). Because 1 Liter of water weighs roughly 1,000,000 milligrams, a concentration of 1 mg/L precisely equals 1 ppm. Likewise, 1 µg/L precisely equals 1 ppb. The calculator automatically handles these massive decimal leaps behind the scenes to prevent lab mistakes.
Frequently Asked Questions
Working in a Chemistry Lab?
Share this step-by-step conversion tool with your lab partners to instantly verify dilution numbers without second-guessing decimal places.
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