How many grains are there in 1170mg?

To determine how many grains are in 1170 mg, it's important to understand the conversion factor between milligrams and grains. One grain is equivalent to approximately 64.8 milligrams.

To find the number of grains in 1170 mg, you can use the following formula:

Number of grains = Amount in mg / Conversion factor (mg per grain)

So, you would calculate:

Number of grains = 1170 mg / 64.8 mg/grain ≈ 18.07 grains.

Rounding this to the nearest whole number gives approximately 18 grains. Therefore, this aligns with the option identified as correct. Understanding this conversion is crucial for pharmacy technicians, as it is common practice to convert between different units of measurement for medications.