Biomarker Unit Converter

Convert any lab value
— instantly.

Punch in a result, switch units, or line up two tests from different labs. Trusted conversion factors, no sign-up, nothing stored.

How it works
Biomarker
Popular:
Value
From
To
Result
— nmol/L
nmol/L = ng/mL × 2.496
What it is

Your vitamin D status — important for bone, muscle and immune health.

Also known as

25-OH vitamin D, 25-hydroxyvitamin D, calcidiol, 25(OH)D

Low can mean

lower may reflect limited sun exposure or dietary intake

High can mean

very high is usually associated with high supplement intake

Read the full explanation

Your labs, always in the right units.

Longetic reads your reports, converts every marker, and tracks the trend over time.

Download on theApp Store
How this works

Precise conversions, honest about the rest.

Each biomarker carries its own conversion factors. To move a value from one unit to another, the tool first expresses it in the marker’s canonical unit — canonical = factor · x + offset — then re-expresses that into your target unit and rounds to the precision that unit is normally reported in.

Conversion factors come from standard clinical references and may vary slightly by lab. This tool is informational, not medical advice or a diagnosis — it converts and compares numbers, and never interprets your health. For borderline changes, confirm with a doctor.

Your results are only the beginning.

Longetic turns every lab into a clear history, tracks what is due, and reminds you before it slips between visits.