Pennyweight to Dram Converter
Convert Pennyweight (dwt) to Dram (dr) instantly. 1 dwt = 0.877714 dr.
Mass Converter
26 units available
1 dwt = 0.877714 dr
Formula:
dr = dwt × 0.8777142857With your value: 1 dwt = 0.87771429 dr
How big is that?
Everyday references on a logarithmic scale, all expressed in pennyweight so you can sanity-check the result.
Other Pennyweight to Dram conversions
Pennyweight to Dram Conversion Table
| Pennyweight (dwt) | Dram (dr) |
|---|---|
| 0.5 | 0.438857 |
| 1 | 0.877714 |
| 2 | 1.755429 |
| 5 | 4.388571 |
| 10 | 8.777143 |
| 15 | 13.165714 |
| 20 | 17.554286 |
| 25 | 21.942857 |
| 50 | 43.885714 |
| 100 | 87.771429 |
| 250 | 219.428571 |
| 500 | 438.857143 |
| 1000 | 877.714286 |
Dram to Pennyweight Conversion Table
| Dram (dr) | Pennyweight (dwt) |
|---|---|
| 0.5 | 0.569661 |
| 1 | 1.139323 |
| 2 | 2.278646 |
| 5 | 5.696615 |
| 10 | 11.393229 |
| 15 | 17.089844 |
| 20 | 22.786458 |
| 25 | 28.483073 |
| 50 | 56.966146 |
| 100 | 113.932292 |
| 250 | 284.830729 |
| 500 | 569.661458 |
| 1000 | 1,139.322917 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Pennyweight (dwt)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Dram (dr)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Pennyweight to Dram
To convert from Pennyweight (dwt) to Dram (dr), multiply the value by 0.8777142857.
Formula: dr = dwt × 0.8777142857
Reverse: dwt = dr × 1.1393229167
Step-by-Step Example
- Start with your value in Pennyweight. For example: 5 dwt
- Multiply by the conversion factor: 5 x 0.8777142857
- The result is: 4.388571 dr
About Pennyweight
The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.
Common uses: jewellery trade, gold scrap, assaying.
About Dram
The dram (dr) is a unit of mass and weight. One dram equals 0.001771845195 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: mass calculations, engineering and science, education.
Frequently Asked Questions
How many Dram are in 1 Pennyweight?
There are exactly 0.8777142857 Dram in 1 Pennyweight. This means the conversion factor from Pennyweight to Dram is 0.8777142857.
What is the formula to convert Pennyweight to Dram?
The formula to convert Pennyweight to Dram is: dr = dwt × 0.8777142857. For example, to convert 10 Pennyweight to Dram, you would multiply 10 by 0.8777142857.
What is a Pennyweight?
The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.
What is a Dram?
The dram (dr) is a unit of mass and weight. One dram equals 0.001771845195 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Pennyweight?
The Pennyweight is commonly used in jewellery trade, gold scrap, assaying.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Pennyweight to Dram converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/pennyweight-to-dram