Description
Convert a concentration between nanograms and micrograms per millilitre.
Pharmacokinetic records distinguish concentration, amount, elapsed time, dilution basis and assay quantification status. Multiplying concentration by compatible volume gives an amount, while a first-order decay factor assumes a supplied constant rate. These local terms and labels do not estimate a person's drug exposure or establish a dose, therapeutic threshold or safe medication decision.
Convert a concentration between nanograms and micrograms per millilitre.
When to use this tool
Use PK Bioanalytical Unit Prefix when you already have concentration, inputUnit and need to convert a concentration between nanograms and micrograms per millilitre.
How to use the tool and how it works
- Enter concentration, inputUnit. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read nanogramsPerMilliliter, microgramsPerMilliliter. Use the output convention below.
Require concentration>=0 and inputUnit ng/mL or ug/mL; use 1000 ng=1 µg.1
Micrograms and nanograms differ by a factor of 1000. Keeping the same millilitre denominator preserves that concentration conversion.2
| Input field | Meaning and units | Accepted input |
|---|---|---|
| concentration | Concentration | Required. Finite number; minimum 0. |
| inputUnit | Input Unit | Required. Text; one of "ng/mL", "ug/mL"; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| nanogramsPerMilliliter | Nanograms Per Milliliter | Required. Finite number. |
| microgramsPerMilliliter | Micrograms Per Milliliter | Required. Finite number. |
{
"input": {
"concentration": 2,
"inputUnit": "ug/mL"
},
"output": {
"nanogramsPerMilliliter": 2000,
"microgramsPerMilliliter": 2
}
}Limitations and assumptions
- Both denominators are mL; no molar/mass conversion, assay correction, dosing or clinical threshold is supplied.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified assay data and an appropriate complete pharmacokinetic model for exposure analysis. Keep dilution, concentration/amount units, sampling time and quantification conventions attached to the observations; a scalar decay or limit comparison does not estimate a regimen.
References
Similar or alternative tools
- PK Collected Volume Recovery Term
Calculate an amount from supplied concentration and collected volume.
- Pharmacognosy Marker Unit Crosswalk
Convert a recorded marker mass fraction between percentage and milligrams per gram.