What you provide
What you provide
- Solute mass expressed in ug, using the same scenario as the other inputs
- Mixture mass expressed in kg, using the same scenario as the other inputs
CHEMISTRY / TRACE COMPOSITION
Parts per Billion Calculator
Calculate mass-based parts per billion from micrograms of solute per kilogram of mixture. Inspect the chemical relationship, substituted values, result, assumptions, and unit convention in one guided workspace.
- 01 Calculated in this tab
- 02 Values stay in this browser tab
- 03 Use boundary
Use boundary
Calculation path
Calculate mass-based parts per billion from micrograms of solute per kilogram of mixture. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
Calculation path
ppb by mass = ug solute/kg mixture
What you receive
What you receive
- Mass concentration in ppb from the stated equation
- A symbolic formula plus substituted working with your values
- Visible assumptions, field guidance, and an authoritative learning reference
Use boundary
Choose the maximum decimal places shown. This does not increase source accuracy.
The ug/kg convention is used; volume-based environmental reporting may require density and method corrections.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors