ug/L to ng/mL Converter: 1 µg/L = 1 ng/mL (Ferritin)

µg/L to ng/mL Converter

µg/L and ng/mL are equal: the value stays the same.

Accurate · Fast · Free

From To

Value (µg/L)

Result

1 ng/mL

1 µg/L = 1 ng/mL

Conversion Factor

1 µg/L = 1 ng/mL

Same numeric value

Reverse Conversion

1 ng/mL = 1 µg/L

Same numeric value

Direct Conversion

ng/mL = µg/L

Common Values (Click to use)

How to Convert µg/L to ng/mL

Use this µg/L to ng/mL converter to change micrograms per liter into nanograms per milliliter. Enter µg/L and read ng/mL.

These two units are equal. A microgram is 1,000 nanograms, and a liter is 1,000 milliliters. The two factors of 1,000 cancel, so 1 µg/L = 1 ng/mL.

For example, 85 µg/L = 85 ng/mL. The number does not change; only the label does.

1 µg/L = 1 ng/mL1 µg/L equals 1 ng/mL. The number stays the same.

Conversion Formula

The formula to convert µg/L to ng/mL is:

ng/mL = µg/L

Where:

µg/L = concentration in micrograms per liter
ng/mL = concentration in nanograms per milliliter

Example Calculation33 µg/L = 33 ng/mL

Conversion Table

Common µg/L to ng/mL conversions are shown below:

µg/L	ng/mL
0.01	0.01
0.1	0.1
0.33	0.33
0.5	0.5
1	1
2.5	2.5
5	5
10	10
33	33
50	50
100	100
250	250
500	500
1,000	1,000

Worked Examples

Here are some common examples of µg/L to ng/mL conversion:

1 µg/L to ng/mL1 × 1 =1 ng/mL

2.5 µg/L to ng/mL2.5 × 1 =2.5 ng/mL

33 µg/L to ng/mL33 × 1 =33 ng/mL

100 µg/L to ng/mL100 × 1 =100 ng/mL

Reverse Conversion Examples (ng/mL to µg/L)

1 ng/mL = 1 µg/L
5 ng/mL = 5 µg/L
33 ng/mL = 33 µg/L
100 ng/mL = 100 µg/L

Unit Definitions

What is micrograms per liter (µg/L)?

Micrograms per liter (µg/L) is a unit of mass concentration. It tells you how many micrograms of a substance are present in one liter of liquid.

1 µg/L = 0.001 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 Are µg/L and ng/mL Equal?

A concentration has two parts: an amount on top and a volume below. To find the factor, compare each part separately and then divide.

Mass: 1 µg = 1,000 ngVolume: 1 L = 1,000 mL

1 µg/L = 1,000 ng ÷ 1,000 mL = 1 ng/mL

Therefore, 1 microgram per liter equals 1 nanogram per milliliter. The number stays the same in both directions; only the unit label changes.

Uses and Importance of µg/L and ng/mL

These two units look different but mean the same concentration. Labs in different countries use different labels for the same result.

Ferritin

Ferritin is reported in ng/mL in some labs and µg/L in others. Labcorp lists a conversion factor of 1 between them.

PSA and tumour markers

Prostate-specific antigen and some other markers are often given in ng/mL, which equals µg/L.

Drug and toxin levels

Therapeutic drug levels can appear in either unit; they read the same number.

Frequently Asked Questions (FAQ)

Is µg/L really the same as ng/mL?

Yes. 1 µg = 1,000 ng and 1 L = 1,000 mL, so 1 µg/L = 1,000 ng ÷ 1,000 mL = 1 ng/mL.

Why do some labs use µg/L?

Many labs outside the US prefer units per liter, the SI-style volume. µg/L keeps the same number as ng/mL.

Is µg/L the same as mcg/L?

Yes. mcg is another way of writing µg.

Does this work for ng/L?

No. ng/L is 1,000 times smaller than ng/mL. For example, 1 ng/mL = 1,000 ng/L.

Why is troponin reported in ng/L?

High-sensitivity troponin tests report in ng/L so results are whole numbers. The College of American Pathologists notes this avoids decimals with many zeros.

Other Related Tools

Molar Amount Convertersmol, mmol, µmol, nmol, pmol, etc.Molar Concentration Convertersmol/L, mmol/L, µmol/L, nmol/L, pmol/L Molar ↔ Mass ConvertersRequires molecular weight

Accuracy and Scope

The relation 1 µg/L = 1 ng/mL is exact.

This page does not interpret ferritin, PSA, troponin or any other result.

Sources

Written by mmolltomgdl.com Editorial Team · Last updated September 28, 2026