Total T3 unit converter
Convert total T3 between ng/dL, nmol/L and ng/mL. Type in either box. The factors come from our catalog and are checked by code.
AI-drafted. Awaiting verificationLast reviewed 2026-10-03
1 ng/dL = 0.0154 nmol/L. Nothing you type here leaves your browser.
The conversion
- 1 ng/dL = 0.01536 nmol/LFrom ng/dL to nmol/L: divide by 65.1. Back again: multiply by 65.1.
- 1 ng/dL = 0.01 ng/mLFrom ng/dL to ng/mL: divide by 100. Back again: multiply by 100.
Mass and molar units are linked by the molecular weight: 650.97 g/mol (triiodothyronine (liothyronine), C15H12I3NO4). Source: PubChem, National Library of Medicine.
Common values
From zero to about twice the usual upper limit, plus the usual limits themselves.
| ng/dL | nmol/L | ng/mL |
|---|---|---|
| 50 | 0.77 | 0.5 |
| 71 | 1.09 | 0.71 |
| 100 | 1.54 | 1 |
| 150 | 2.3 | 1.5 |
| 180 | 2.77 | 1.8 |
| 200 | 3.07 | 2 |
| 250 | 3.84 | 2.5 |
| 300 | 4.61 | 3 |
| 350 | 5.38 | 3.5 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the Total T3 page.
| Who | ng/dL | nmol/L | ng/mL |
|---|---|---|---|
| 1.08–5 | 83–252 | 1.28–3.87 | 0.83–2.52 |
| 6–10 | 92–219 | 1.41–3.36 | 0.92–2.19 |
| 11+ | 71–180 | 1.09–2.77 | 0.71–1.8 |