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Electrolytes & minerals

Phosphate unit converter

Inorganic phosphorus (bones and energy metabolism)

Also known as: Phosphorus, Inorganic phosphate, Inorganic phosphorus, PO4, Pi, Phosphor

Converter

Enter a value in any unit and all other units fill in.

Worked example

1.15 mmol/L (middle of the reference range) = 3.56 mg/dL

Conversion formulas

g/Lg/L = mmol/L × 0.03097mmol/L = g/L × 32.29
mg/dLmg/dL = mmol/L × 3.097mmol/L = mg/dL × 0.3229
mg/Lmg/L = mmol/L × 30.97mmol/L = mg/L × 0.03229
µmol/Lµmol/L = mmol/L × 1000mmol/L = µmol/L × 0.001
µg/dLµg/dL = mmol/L × 3097mmol/L = µg/dL × 0.0003229

Reference range

UnitAdults
g/L0.0248 – 0.0465
mmol/L0.8 – 1.5
mg/dL2.478 – 4.645
mg/L24.78 – 46.45
µmol/L800 – 1500
µg/dL2478 – 4646

Source: Pathology Harmony Group (ACB, IBMS, RCPath): Agreed Adult Clinical Biochemistry Reference Intervals, January 2011 · Last reviewed: 2026-10-14

Note from the source: 0.8-1.5 mmol/L. UK Pathology Harmony consensus of the Association for Clinical Biochemistry, the Institute of Biomedical Science and the Royal College of Pathologists.

Frequently asked questions

How do I convert Phosphate from mmol/L to mg/dL?

mg/dL = mmol/L × 3.097. In the other direction: mmol/L = mg/dL × 0.3229.

What is the reference range of Phosphate?

For adults the range is 0.8 – 1.5 mmol/L (Pathology Harmony Group (ACB, IBMS, RCPath): Agreed Adult Clinical Biochemistry Reference Intervals, January 2011). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Phosphate?

Common units are g/L, mmol/L, mg/dL, mg/L, µmol/L, µg/dL.

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