mg/g to g/kg Converter

Enter a value in milligrams per gram (mg/g) into the calculator to convert it to grams per kilogram (g/kg). Because both are mass-per-mass units, the numerical value stays the same during the conversion.

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mg/g to g/kg Formula

The following relationship is used to convert milligrams per gram (mg/g) to grams per kilogram (g/kg).

g/kg = mg/g

This can also be shown by converting the numerator and denominator at the same time:

g/kg = mg/g \times \frac{1 \text{ g}}{1000 \text{ mg}} \times \frac{1000 \text{ g}}{1 \text{ kg}} = mg/g

Variables:

• mg/g is the concentration in milligrams per gram
• g/kg is the concentration in grams per kilogram
• The numerical value remains the same when converting from mg/g to g/kg

To convert mg/g to g/kg, keep the same number and change the units from mg/g to g/kg.

What is mg/g to g/kg Conversion?

mg/g to g/kg conversion is the process of expressing the same mass fraction using different units. A value in mg/g tells you how many milligrams of a substance are present per gram of sample, while a value in g/kg tells you how many grams of that substance are present per kilogram of sample. Since both the numerator and denominator scale by the same factor of 1000, the ratio stays unchanged.

How to Convert mg/g to g/kg?

The following steps outline how to convert mg/g to g/kg.

1. First, determine the concentration in milligrams per gram (mg/g).
2. Next, recognize that mg/g and g/kg represent the same mass-per-mass ratio.
3. Finally, write the same numerical value with units of g/kg.
4. After inserting the value and calculating the result, check your answer with the calculator above.

Example Problem: 

Use the following variables as an example problem to test your knowledge.

Concentration = 5 mg/g

Converted Value = 5 g/kg

mg/g to g/kg Conversion Table

The table below lists several example values in mg/g and their equivalent values in g/kg.

Laboratories, technical reports, and product specifications may use either mg/g or g/kg depending on formatting preferences. Knowing that the numeric value stays the same makes it easy to compare results across documents.