ng/dL to ng/mL Converter
To convert ng/dL to ng/mL, divide the value in nanograms per deciliter by 100.
How to Convert ng/dL to ng/mL
Use this ng/dL to ng/mL converter to change nanograms per deciliter into nanograms per milliliter. Enter ng/dL and read ng/mL.
The mass unit (ng) stays the same. One deciliter is 100 milliliters, so the amount in one mL is one hundredth of the amount in one dL. Divide by 100.
For example, 450 ng/dL ÷ 100 = 4.5 ng/mL.
1 ng/dL = 0.01 ng/mLDivide the value in ng/dL by 100 to get ng/mL.Conversion Formula
The formula to convert ng/dL to ng/mL is:
Where:
- ng/dL = concentration in nanograms per deciliter
- ng/mL = concentration in nanograms per milliliter
Conversion Table
Common ng/dL to ng/mL conversions are shown below:
| ng/dL | ng/mL |
|---|---|
| 0.01 | 0.0001 |
| 0.1 | 0.001 |
| 0.33 | 0.0033 |
| 0.5 | 0.005 |
| 1 | 0.01 |
| 2.5 | 0.025 |
| 5 | 0.05 |
| 10 | 0.1 |
| 33 | 0.33 |
| 50 | 0.5 |
| 100 | 1 |
| 250 | 2.5 |
| 500 | 5 |
| 1,000 | 10 |
Worked Examples
Here are some common examples of ng/dL to ng/mL conversion:
- 0.01 ng/mL = 1 ng/dL
- 0.05 ng/mL = 5 ng/dL
- 0.33 ng/mL = 33 ng/dL
- 1 ng/mL = 100 ng/dL
Unit Definitions
What is nanograms per deciliter (ng/dL)?
Nanograms per deciliter (ng/dL) is a unit of mass concentration. It tells you how many nanograms of a substance are present in one deciliter of liquid. One deciliter is 0.1 liter, or 100 milliliters.
1 ng/dL = 0.00001 mg/L.
What is nanograms per milliliter (ng/mL)?
Nanograms per milliliter (ng/mL) is a unit of mass concentration. It tells you how many nanograms of a substance are present in one milliliter of liquid. One milliliter is 0.001 liter.
1 ng/mL = 0.001 mg/L.
Why Is the Conversion Factor 0.01?
A concentration has two parts: an amount on top and a volume below. To find the factor, compare each part separately and then divide.
Therefore, 1 nanogram per deciliter equals 0.01 nanograms per milliliter. To convert ng/dL to ng/mL, you divide by 100, and to convert ng/mL to ng/dL, you multiply by 100.
Uses and Importance of ng/dL and ng/mL
ng/dL and ng/mL are both used for hormones. The same hormone can be reported in either unit, depending on the lab.
Testosterone
In the US, total testosterone is often reported in ng/dL. Some labs and papers use ng/mL. 500 ng/dL is 5 ng/mL.
Aldosterone and free T4
Labcorp lists serum aldosterone and free T4 in ng/dL as conventional units. Some references use ng/mL instead.
Reading research papers
Studies from different countries may use different units. Converting lets you compare numbers directly.
Frequently Asked Questions (FAQ)
How many ng/dL make 1 ng/mL?
100 ng/dL = 1 ng/mL, because 1 dL = 100 mL.
What is 300 ng/dL of testosterone in ng/mL?
300 ÷ 100 = 3 ng/mL.
Is ng/dL the same as ng%?
Yes. Older reports sometimes wrote ng% to mean ng per 100 mL, which is ng/dL.
Do I need the molecular weight?
No. Both units are mass per volume. Molecular weight is only needed to convert to nmol/L.
How do I get testosterone in nmol/L?
Labcorp uses a factor of 0.0347: ng/dL × 0.0347 ≈ nmol/L. That step does need the molecular weight, which is built into the factor.
Other Related Tools
Accuracy and Scope
The factor 1 ng/dL = 0.01 ng/mL is exact, because 1 dL = 100 mL.
This converter does not interpret hormone levels; ask a healthcare professional about your results.
Sources