How to Convert mg/dL to mg/L
Both mg/dL (milligrams per deciliter) and mg/L (milligrams per liter) measure the same mass, just over a different volume label. Because a liter is 10 deciliters, the "per litre" number is ten times the "per deciliter" number.
Value mg/L = value mg/dL × 10 Value mg/dL = value mg/L ÷ 10 mg/dL to mg/L Chart
| mg/dL | mg/L | Context |
|---|---|---|
| 0.3 mg/dL | 3 mg/L | CRP (hs-CRP high threshold) |
| 1 mg/dL | 10 mg/L | CRP upper normal |
| 5 mg/dL | 50 mg/L | Moderate |
| 10 mg/dL | 100 mg/L | High |
| 20 mg/dL | 200 mg/L | Very high |
| 50 mg/dL | 500 mg/L | Markedly high |
mg/L to mg/dL Reverse Chart
| mg/L | mg/dL |
|---|---|
| 3 mg/L | 0.3 mg/dL |
| 10 mg/L | 1 mg/dL |
| 50 mg/L | 5 mg/dL |
| 100 mg/L | 10 mg/dL |
Where This Conversion Comes Up
The most common reason to convert mg/dL to mg/L is comparing markers like CRP and albumin across reports, since these are often reported in mg/L internationally and mg/dL in the US. For CRP with hs-CRP cardiovascular risk bands, see the CRP conversion calculator; for the reverse direction, use the mg/L to mg/dL calculator.
Worked Example
Suppose a CRP is 0.8 mg/dL and you want mg/L:
0.8 × 10 = 8 mg/L Reversing, a value of 40 mg/L equals 4 mg/dL.
Frequently Asked Questions
How do you convert mg/dL to mg/L?
Multiply by 10. For example, 5 mg/dL is 50 mg/L.
Why multiply by 10?
A liter is 10 deciliters, so the per-liter figure is ten times larger.
What is 1 mg/dL in mg/L?
10 mg/L.
Which tests use these units?
CRP and albumin are common examples.
References
- Metric unit relationships: 1 L = 10 dL, so mg/dL × 10 = mg/L.
Conclusion
Converting mg/dL to mg/L is a simple ×10 (and ÷10 the other way). It most often comes up with CRP and albumin — convert with confidence and compare against your lab's range.