Milligram to Grain calculator (mg to gr)

Convert milligrams to grains (mg to gr) by typing the amount of milligrams in the input field below and then clicking in the "Convert" button. If you want to convert from grains to milligrams, you can use our grain to milligram converter.


Formula used to convert mg to gr:

F(x) = x / 64.79891

For example, if you want to convert 1 mg to gr, just replace x by 1 [mg]:

1 mg = 1 / 64.79891 = 0.01543235835294143 gr


  1. Divide the amount of milligrams by 64.79891.
  2. The result will be expressed in grains.

Milligram to Grain Conversion Table

The following table will show the most common conversions for Milligrams (mg) to Grains (gr):

Milligrams (mg) Grains (gr)
0.0001 mg 0.000001543235835294143 gr
0.001 mg 0.00001543235835294143 gr
0.01 mg 0.0001543235835294143 gr
0.02 mg 0.0003086471670588286 gr
0.03 mg 0.00046297075058824287 gr
0.04 mg 0.0006172943341176572 gr
0.05 mg 0.0007716179176470716 gr
0.06 mg 0.0009259415011764857 gr
0.07 mg 0.0010802650847059002 gr
0.08 mg 0.0012345886682353143 gr
0.09 mg 0.0013889122517647286 gr
0.1 mg 0.001543235835294143 gr
0.2 mg 0.003086471670588286 gr
0.3 mg 0.004629707505882428 gr
0.4 mg 0.006172943341176572 gr
0.5 mg 0.007716179176470715 gr
0.6 mg 0.009259415011764856 gr
0.7 mg 0.010802650847059 gr
0.8 mg 0.012345886682353145 gr
0.9 mg 0.013889122517647286 gr
1 mg 0.01543235835294143 gr
1.1 mg 0.016975594188235573 gr
1.2 mg 0.018518830023529713 gr
1.25 mg 0.019290447941176788 gr
1.5 mg 0.023148537529412143 gr
1.75 mg 0.0270066271176475 gr
2 mg 0.03086471670588286 gr
3 mg 0.046297075058824286 gr
4 mg 0.06172943341176572 gr
5 mg 0.07716179176470715 gr
6 mg 0.09259415011764857 gr
7 mg 0.10802650847059 gr
8 mg 0.12345886682353144 gr
9 mg 0.13889122517647287 gr
10 mg 0.1543235835294143 gr
20 mg 0.3086471670588286 gr
30 mg 0.4629707505882429 gr
40 mg 0.6172943341176572 gr
50 mg 0.7716179176470714 gr
60 mg 0.9259415011764858 gr
70 mg 1.0802650847059 gr
80 mg 1.2345886682353144 gr
90 mg 1.3889122517647285 gr
100 mg 1.5432358352941429 gr
200 mg 3.0864716705882858 gr
300 mg 4.629707505882429 gr
400 mg 6.1729433411765715 gr
500 mg 7.716179176470715 gr
600 mg 9.259415011764858 gr
700 mg 10.802650847059 gr
800 mg 12.345886682353143 gr
900 mg 13.889122517647285 gr
1000 mg 15.43235835294143 gr

About the converter

Note that this is a high-precision mg to gr calculator, but rounding errors may occur (in a very small percentage of the cases).

Convert milligrams to grains (mg to gr) by pasting or typing the amount of milligrams in the milligrams input. Check the formula section to manually convert mg to gr.

In case you want to convert grains to milligrams, please use the gr to mg converter.

How many grains are in a milligram?

1 milligram [mg] is equal to 0.01543235835294143 grains [gr].

About Milligrams (mg)

A milligram is a unit of weight that is based on the International System of Units. The symbol used to represent the milligram is mg. One milligram is equal to 1/1,000 grams, or 1/1,000,000 kilograms. Is often used to measure weight or mass of food, vitamins, minerals and more.

About Grains (gr)

A grain is a unit of mass, equal to exactly 64.79891 milligrams (independently of the type of pound used). It is nominally based upon the mass of a single virtual ideal seed of a cereal. The symbol used to define grains is gr.

FAQs for Milligram to Grain converter calculator

What is Milligram to Grain converter calculator?

Milligram to Grain converter is a free and online calculator that converts Milligrams to Grains.

How do I use Milligram to Grain converter?

  1. Either copy and paste or type the amount of milligrams to convert in the milligrams input.
  2. Click on the Convert button.
  3. It will convert milligrams into grains and output it in the grains input.

Which browsers are supported?

All mayor web browsers are supported, including Internet Explorer, Microsoft Edge, Firefox, Chrome, Safari and Opera.

Which devices does Milligram to Grain converter work on?

Milligram to Grain converter calculator works in any device that supports any of the browsers mentioned before. It can be a smartphone, desktop computer, notebook, tablet, etc.