How to Convert Grams to Grains

Use a calculator to be accurate when you convert grams into grains.

A gram is a metric unit of weight and mass. The metric grain is a weight unit. The grain is a decimal unit of weight based on the gram.

Medications given in the hospital, nursing home and other health-care settings can be ordered in metric grams or metric grains. Confusing grams and grains could result in a significant medication error or even death.

The abbreviation for a grams is g.
The abbreviation for a grain is gr.

Things You'll Need

• Calculator
• Online math conversion calculator

Instructions

1. Remember that a gram is equal to 15.4323584 grains. The grain can be rounded off to 15. Multiply the number of grams you have by 15 to get the number of grains.

   1 gram is = 15 metric grains.
   1 g. X 15 = 15 metric grains.

   3 grams is = 45 metric grains.
   3 g. X 15 = 45 grains.

   5 gram is = 75 metric grains.
   5 g. X 15 = 75 grains.

2. The process of converting grains to grams is completed by division. Divide the grains by 15 to get the number of grams.

   75 grains divided by 15 = 5 grams.

   75 grains is equal to 5 grams.

3. Use a calculator to check the multiplication and division of the conversion from grams to grains and grains to grams.

References

• Metric Conversion; Convert Grams to Grains
• SI Metric; Apothecary / Metric and Other Conversion Equivalents