Grain to Dram Converter
Convert Grain (gr) to Dram (dr) instantly. 1 gr = 0.036571 dr.
Mass Converter
26 units available
1 gr = 0.036571 dr
Formula:
dr = gr × 0.0365714286With your value: 1 gr = 0.03657143 dr
How big is that?
Everyday references on a logarithmic scale, all expressed in grain so you can sanity-check the result.
Other Grain to Dram conversions
Grain to Dram Conversion Table
| Grain (gr) | Dram (dr) |
|---|---|
| 0.5 | 0.018286 |
| 1 | 0.036571 |
| 2 | 0.073143 |
| 5 | 0.182857 |
| 10 | 0.365714 |
| 15 | 0.548571 |
| 20 | 0.731429 |
| 25 | 0.914286 |
| 50 | 1.828571 |
| 100 | 3.657143 |
| 250 | 9.142857 |
| 500 | 18.285714 |
| 1000 | 36.571429 |
Dram to Grain Conversion Table
| Dram (dr) | Grain (gr) |
|---|---|
| 0.5 | 13.671875 |
| 1 | 27.34375 |
| 2 | 54.6875 |
| 5 | 136.71875 |
| 10 | 273.4375 |
| 15 | 410.15625 |
| 20 | 546.875 |
| 25 | 683.59375 |
| 50 | 1,367.1875 |
| 100 | 2,734.375 |
| 250 | 6,835.9375 |
| 500 | 13,671.875 |
| 1000 | 27,343.75 |
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.
Grain (gr)
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 Grain to Dram
To convert from Grain (gr) to Dram (dr), multiply the value by 0.0365714286.
Formula: dr = gr × 0.0365714286
Reverse: gr = dr × 27.34375
Step-by-Step Example
- Start with your value in Grain. For example: 5 gr
- Multiply by the conversion factor: 5 x 0.0365714286
- The result is: 0.182857 dr
About Grain
The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.
Common uses: ammunition, archery, pharmacy (historic).
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 Grain?
There are exactly 0.0365714286 Dram in 1 Grain. This means the conversion factor from Grain to Dram is 0.0365714286.
What is the formula to convert Grain to Dram?
The formula to convert Grain to Dram is: dr = gr × 0.0365714286. For example, to convert 10 Grain to Dram, you would multiply 10 by 0.0365714286.
What is a Grain?
The grain equals exactly 64.79891 milligrams and was originally the weight of a single barleycorn. It is still the standard unit for bullets, propellant and arrows.
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 Grain?
The Grain is commonly used in ammunition, archery, pharmacy (historic).
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Grain to Dram converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/grain-to-dram