Progesterone conversion: ng/mL to nmol/L
For progesterone, 1 ng/mL = 3.17996 nmol/L, and 1 nmol/L = 0.314469 ng/mL.
Common values
ng/mL to nmol/L
| ng/mL | nmol/L |
|---|---|
| 0.1 | 0.3 |
| 0.2 | 0.6 |
| 0.5 | 1.6 |
| 1 | 3.2 |
| 2 | 6.4 |
| 3 | 9.5 |
| 5 | 15.9 |
| 10 | 31.8 |
| 15 | 47.7 |
| 20 | 63.6 |
| 25 | 79.5 |
| 30 | 95.4 |
nmol/L to ng/mL
| nmol/L | ng/mL |
|---|---|
| 0.5 | 0.16 |
| 1 | 0.31 |
| 2 | 0.63 |
| 3 | 0.94 |
| 5 | 1.57 |
| 10 | 3.14 |
| 15 | 4.72 |
| 20 | 6.29 |
| 30 | 9.43 |
| 50 | 15.72 |
| 80 | 25.16 |
| 100 | 31.45 |
Each converted value is worked out in full and then rounded: nmol/L to one decimal place and ng/mL to two decimal places.
Source: molar masses summed from the IUPAC CIAAW abridged standard atomic weights, 2024.
The values are facts and free to use; this table’s selection and presentation are © 2026 ScienceQuest.
Why the factor is specific to progesterone
Progesterone, C₂₁H₃₀O₂, has a molar mass of 314.469 g/mol, summed from the standard atomic weights of its atoms. A result in ng/mL is a mass and one in nmol/L an amount of substance, so converting divides by the molar mass and multiplies by 1000 for the millilitres in a litre: 1 ng/mL = 1000 ÷ 314.469 = 3.17996 nmol/L.
A factor fits one analyte only: 1 ng/mL of 25-hydroxyvitamin D is 2.49596 nmol/L, as the 25-hydroxyvitamin D conversion table shows.
- nmol/L = ng/mL × 1000 ÷ 314.469
- ng/mL = nmol/L × 314.469 ÷ 1000
Which countries report which unit
American laboratories usually report progesterone in ng/mL; British, Canadian and Australian ones report nmol/L.
Worked example
- 10 ng/mL in nmol/L
- = 10 × 1000 ÷ 314.469
- = 31.7996 nmol/L