Grain: One Grain is equal to 1/7000 pound (lb) or 64.79891 milligrams.
Gram: One Metric Gram is equal to 15.43236 gr.
grains to grams
grams to grains
Please enter a value in grains.
Unit
Relative value
Metric value
Notes
grain (gr)
1/7000
≈64.80 mg
1/≈27.34 dr*
dram (dr)
1/256
≈1.772 g
1/16 oz
ounce (oz)
1/16
≈28.35 g
16 dr
pound (lb)
1
≈453.6 g
16 oz
• The grain (originally a grain of barley) is the foundation for the traditional English weight systems, and is the only unit
that is equal throughout the standard British/American system (avoirdupois), troy and apothecaries' systems of mass. In the
standard British/American system, there are precisely 7,000 grains per pound, and 5,760 grains per troy pound or apothecaries' pound. * Many antique powder-measures and weights are graded in dra(ch)ms. It is important to determine
which system they adhere to - in the standard system, there are 27 11/32 gr per dram (dr), whereas an apothecaries' dram
(Ʒ) is equal to 60 gr.
• Antique weights can be a fun way of measuring powder if you have a good scale. Keep your eyes open for old grain weights and other
antique apothecaries' and mercantile weights. Although you need to be careful to determine the system for weights marked in drams,
ounces or pounds, many others are still useful. A common type is the 'Pennyweight' (dwt), where 1 dwt = 24 gr. Some apothecaries'
weights can also be of use, for example 1 scruple (Э), which equals 20 gr.
Grain: One Grain is equal to 1/7000 pound (lb) or 64.79891 milligrams.
