Density and Mass
drtot
Convert drams (avoirdupois) (dr) to metric tonnes (t).
Factor1 dr = 1.771845e-6 t
Converter
dr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
t
Rendered to 6 significant figures.
Formula
Formula
t = dr × 1.771845e-6
Multiply any value in drams (avoirdupois) by 1.771845e-6 to obtain the value in metric tonnes.
Worked example
Convert 1.00000e+6 dr to t.
- 01Start with 1.00000e+6 dr.
- 02Multiply by the conversion factor: 1.00000e+6 × 1.771845e-6 = 1.77185 t.
Result1.00000e+6 dr = 1.77185 t
Conversion table
| dr | t |
|---|---|
| 1 | 1.7718e-6 |
| 2 | 3.5437e-6 |
| 5 | 8.8592e-6 |
| 10 | 1.7718e-5 |
| 20 | 3.5437e-5 |
| 50 | 8.8592e-5 |
| 100 | 0.00017718 |
| 200 | 0.00035437 |
| 500 | 0.00088592 |
| 1000 | 0.0017718 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from dr to t?
1 dr equals 1.771845e-6 t. To convert, multiply the value in drams (avoirdupois) by 1.771845e-6.
How do I convert 1 dr to t?
1 dr = 1.77185e-6 t. For any value, multiply by 1.771845e-6.
How do I convert t back to dr?
Divide by the same factor — or equivalently, multiply by 564383.4. So 1 t = 564383 dr.
When would I need to convert dram (avoirdupois) to metric tonne?
Mass conversions appear in material balances, reagent dosing, and reconciling vendor specifications across imperial/metric systems.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).