Parts Per Billion Calculator
🧪 Solutions & Molarity. Use the Parts per billion 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 | ppb |
| Solute | g |
| Solution | g |
Worked example
Find the concentration when Solute = 5 × 10⁻⁶ g, Solution = 1000 g.
Using ppb = msolutemsolution× 10⁹: Concentration = 5 ppb.
Frequently asked questions
What is the formula for Parts per billion?
ppb = msolutemsolution× 10⁹.
What do the letters stand for, and what units are used?
Concentration in ppb, Solute in g, Solution in g.
How do you calculate concentration?
Put the values into ppb = msolutemsolution× 10⁹. For example, with Solute = 5 × 10⁻⁶ g, Solution = 1000 g, concentration = 5 ppb.
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.
