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Parts Per Thousand to mg/L Calculator

Formula

To convert parts per thousand (ppt) to milligrams per liter (mg/L):

$mg/L = ppt \times \text{Density} \times 1000$

Where:

ppt is the concentration in parts per thousand
Density is the density of the solution in grams per cubic centimeter (g/cm³)
mg/L is the concentration in milligrams per liter

What is Parts Per Thousand?

Parts per thousand (ppt) is a unit of measure used to describe the concentration of a substance in a solution. It represents the number of parts of a substance in a thousand parts of the total solution. It is commonly used in fields such as oceanography and chemistry to express salinity or other substance concentrations.

Example Calculation 1

Let's assume the following values:

Concentration ( $ppt$ ) = 35
Density of Solution = 1.025 g/cm³

Using the formula:

$mg/L = 35 \times 1.025 \times 1000 = 35875$

The concentration is 35875 mg/L.

Example Calculation 2

Let's assume the following values:

Concentration ( $ppt$ ) = 10
Density of Solution = 1.000 g/cm³

Using the formula:

$mg/L = 10 \times 1.000 \times 1000 = 10000$

The concentration is 10000 mg/L.