Mass concentration is the mass of a substance in a given volume of liquid. Labs report it in units such as mg/dL, mg/L, µg/L and ng/mL, and these units differ by simple powers of ten: for example 1 mg/dL = 10 mg/L, 1 µg/mL = 1 mg/L and 1 ng/mL = 1 µg/L. Pick a pair below to open its converter, table and worked examples.
Converters in This Group
From mg/dL (milligram per deciliter)
- mg/dL to mg/L× 10
From mg/L (milligram per liter)
- mg/L to mg/dL÷ 10
From ng/dL (nanogram per deciliter)
- ng/dL to ng/mL÷ 100
From ng/mL (nanogram per milliliter)
- ng/mL to ng/dL× 100
- ng/mL to µg/Lsame value
From µg/L (microgram per liter)
- µg/L to ng/mLsame value
Unit Reference
| Unit | Name | Equals |
|---|---|---|
| mg/mL | Milligram per milliliter | 1 mg/mL = 1,000 mg/L |
| mg/dL | Milligram per deciliter | 1 mg/dL = 10 mg/L |
| mg/L | Milligram per liter | 1 mg/L = 1 mg/L |
| µg/mL | Microgram per milliliter | 1 µg/mL = 1 mg/L |
| µg/L | Microgram per liter | 1 µg/L = 0.001 mg/L |
| ng/mL | Nanogram per milliliter | 1 ng/mL = 0.001 mg/L |
| ng/dL | Nanogram per deciliter | 1 ng/dL = 0.00001 mg/L |
| ng/L | Nanogram per liter | 1 ng/L = 0.000001 mg/L |
| pg/mL | Picogram per milliliter | 1 pg/mL = 0.000001 mg/L |
How These Conversions Work
Every unit here is a fixed power of ten away from mg/L, so a conversion is a single multiplication or division. A deciliter is one tenth of a liter, which is why mg/dL is ten times mg/L. For example, 90 mg/dL = 900 mg/L, and 4 ng/mL = 4 µg/L.
More Converters
Looking for a different kind of unit? Try the molar amount converters, molar concentration converters and moles to mass converters. You can also browse all lab converters or open the mmol/L to mg/dL conversion charts.
These tools convert units only and do not give medical advice. Read our editorial policy.