Parts Per Million Calculator
🧪 Solutions & Molarity. Use the Parts per million formula to find concentration, solute, solution: pick the value you want, type the others, and the answer updates as you go.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Concentration | ppm |
| Solute | g |
| Solution | g |
Worked example
Find the concentration when Solute = 0.005 g, Solution = 1000 g.
Using ppm = msolutemsolution× 10⁶: Concentration = 5 ppm.
Frequently asked questions
What is the formula for Parts per million?
ppm = msolutemsolution× 10⁶.
What do the letters stand for, and what units are used?
Concentration in ppm, Solute in g, Solution in g.
How do you calculate concentration?
Put the values into ppm = msolutemsolution× 10⁶. For example, with Solute = 0.005 g, Solution = 1000 g, concentration = 5 ppm.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (concentration, solute, solution) and fill in the others: it rearranges the formula for you.
