Whether you are estimating on the spot or checking a result somebody else gave you, the percent solution calculator is the quickest way to get from custom mass, mass of solution, volume of solute, custom volume and mass of solute to concentration (ppm, ppb), concentration (m/v) and volume of solution.
What Is the Percent Solution Calculator?
The percent solution calculator turns custom mass, mass of solution, volume of solute, custom volume and mass of solute into concentration (ppm, ppb), concentration (m/v) and volume of solution.
It is a quick way to get from the numbers you have to the number you need, without setting up a spreadsheet or reaching for a formula.
How the Percent Solution Works
Each result follows from the ones before it, and the calculator shows every step, so a surprising answer can be traced back to the input that caused it.
Round your inputs to the precision you actually know, and keep more precision than that in the intermediate steps.
Getting a Result You Can Trust
Run the calculation twice with slightly different inputs. A sensible calculator moves its output in proportion; a wild change points to a unit or a decimal point problem in what you entered.
Write the inputs down next to the answer. It takes a moment and it is the difference between a number you can explain and one you cannot.
A Worked Example
Working through an example, with custom mass set to 10, mass of solution set to 5, volume of solute set to 2, the calculator returns concentration 3 of 0.1, and concentration of 0.1, and concentration (ppm, ppb) of 100. Substitute your own figures and the same steps produce the same kind of answer.
Frequently Asked Questions
What do I need to work out concentration (ppm, ppb)?
Enter custom mass, mass of solution, volume of solute, custom volume and mass of solute. The calculator then works through the relationship and reports concentration (ppm, ppb), concentration (m/v) and volume of solution.
What does the percent solution actually calculate?
It takes custom mass, mass of solution, volume of solute, custom volume and mass of solute and converts them into concentration (ppm, ppb), concentration (m/v) and volume of solution using the standard relationship for this problem. Each step is applied in turn, so every output is traceable back to the numbers you typed in.
How should I enter custom mass?
Use the value you actually have, in the unit shown next to the field. Enter every value in the same unit system. The calculator assumes the figures you supply are consistent, so it cannot correct a mistake that happens before the calculation starts.
Does anything you type get stored?
No. The whole calculation runs inside your browser, and nothing you enter is uploaded, logged or sent anywhere.
Why does a small change in one value move the answer so much?
That happens when an output depends on a ratio, because dividing by a small number magnifies any change in it. Check the units first, then check whether the value you entered is in the range the relationship was designed for.