Potassium Conversion: Mmol L To Mg Dl

Glucose Conversion Table Mmol L Mg Dl


Potassium is an essential nutrient that plays a vital role in the proper functioning of our body. It helps regulate the heart’s rhythm, maintain fluid balance, and support muscle and nerve function. The normal potassium level in our body ranges from 3.5 to 5.0 mmol/L. However, the unit of measurement for potassium levels varies across different countries, which often leads to confusion in understanding the results.

What is Mmol/L and Mg/dL?

Mmol/L stands for millimoles per liter, while Mg/dL stands for milligrams per deciliter. These two units are used to measure the concentration of potassium in the blood. Mmol/L is the standard unit of measurement used in most countries, including the UK, Canada, and Australia. However, in the United States, potassium levels are often measured in Mg/dL.

Conversion Formula

To convert potassium levels from mmol/L to Mg/dL, you need to use a conversion factor of 39.1. This factor represents the molecular weight of potassium. The formula for conversion is as follows: Mg/dL = mmol/L x 39.1 For example, if your potassium level is 4.0 mmol/L, the conversion to Mg/dL would be: Mg/dL = 4.0 x 39.1 = 156.4 Therefore, your potassium level is 156.4 Mg/dL.

Why is Conversion Important?

Conversion of potassium levels is crucial for accurate diagnosis and treatment of potassium-related disorders. If the units are not converted correctly, it can lead to misinterpretation of results and inaccurate diagnosis. It is essential to understand the differences in measurement units to ensure proper communication and understanding between healthcare professionals and patients.

Factors Affecting Potassium Levels

Several factors can affect the potassium levels in our body, including:

1. Diet

The intake of potassium-rich foods such as fruits, vegetables, and dairy products can increase potassium levels in the body.

2. Medications

Certain medications such as diuretics, ACE inhibitors, and potassium supplements can affect potassium levels in the body.

3. Kidney Function

The kidneys play a vital role in regulating potassium levels in the body. Any impairment in kidney function can lead to an increase or decrease in potassium levels.


In conclusion, understanding the conversion of potassium levels from mmol/L to Mg/dL is essential for accurate diagnosis and treatment of potassium-related disorders. The conversion factor of 39.1 is used to convert potassium levels from mmol/L to Mg/dL. It is also essential to be aware of the factors that can affect potassium levels in our body to maintain a healthy potassium balance.