Mediki
Phosphate blood test: what your result means
Phosphate measures a mineral important for energy production, bones, and cell signaling.
- Standard unit
- mmol/L
- Reported in
- mmol/L, µmol/L, mg/dL, mg/100mL, mg%, mg/L and more
What does high phosphate mean?
Higher values may suggest reduced kidney clearance or altered bone-mineral balance. What counts as high depends on the reference range printed on your lab report, because ranges differ between laboratories.
What does low phosphate mean?
Lower values may suggest reduced intake, absorption, or shifts into cells. What counts as low depends on the reference range printed on your lab report, because ranges differ between laboratories.
Phosphate units and conversion
Mediki shows phosphate in mmol/L. Labs may report it in other units; Mediki converts them automatically so results from different labs line up on one chart.
| Unit on your report | Convert to mmol/L | Convert back |
|---|---|---|
| µmol/L | 1 µmol/L = 0.001 mmol/L | 1 mmol/L = 1,000 µmol/L |
| mg/dL, mg/100mL, mg% | 1 mg/dL = 0.3226 mmol/L | 1 mmol/L = 3.1 mg/dL |
| mg/L, µg/mL | 1 mg/L = 0.03226 mmol/L | 1 mmol/L = 31 mg/L |
Convert a value from your report with the blood test unit converter.
Why track phosphate over time?
A single phosphate result is a snapshot. Comparing it with your earlier tests shows whether a value is stable, slowly drifting, or responding to a change in treatment or lifestyle, which is often more useful than one number on its own.
Read our guide on how to read blood test results to understand reference ranges, flags and units.
Track your phosphate results in one chart
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Medical disclaimer: This page is general information, not medical advice. Reference ranges differ between laboratories, and only a doctor can interpret your results in the context of your health.