Hormones

Progesterone unit converter

Sex hormone (range depends strongly on cycle phase and pregnancy)

Also known as: P4, Serum progesterone, Progesterona

Converter

Enter a value in any unit and all other units fill in.

ng/mL = µg/L nmol/L µg/dL ng/dL

Worked example

10 ng/mL (middle of the reference range) = 31.8 nmol/L

Conversion formulas

nmol/L	nmol/L = ng/mL × 3.18	ng/mL = nmol/L × 0.3145
µg/dL	µg/dL = ng/mL × 0.1	ng/mL = µg/dL × 10
ng/dL	ng/dL = ng/mL × 100	ng/mL = ng/dL × 0.01

Reference range

Unit	Adults	Men	Women
ng/mL = µg/L	0 – 20	0 – 1	0 – 20
nmol/L	0 – 63.59	0 – 3.18	0 – 63.59
µg/dL	0 – 2	0 – 0.1	0 – 2
ng/dL	0 – 2000	0 – 100	0 – 2000

Source: MedlinePlus (NLM): Serum progesterone · Last reviewed: 2026-10-14

Note from the source: Women: below 1 ng/mL before ovulation, 5-20 ng/mL mid-cycle; men and postmenopausal women below 1 ng/mL; pregnancy 11-150 ng/mL or more (MedlinePlus)

Frequently asked questions

How do I convert Progesterone from ng/mL to nmol/L?

nmol/L = ng/mL × 3.18. In the other direction: ng/mL = nmol/L × 0.3145.

What is the reference range of Progesterone?

For adults the range is 0 – 20 ng/mL (MedlinePlus (NLM): Serum progesterone). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Progesterone?

Common units are ng/mL, nmol/L, µg/dL, ng/dL.