Convert a powder charge in grains to cc using a built-in powder VMD chart or your own density, convert cc back to grains, and find the closest Lee dipper.

VMD is the volume of one grain of powder in cc. Chart values are averages; batches vary.

Pick your powder to use its typical VMD, or choose a custom VMD or density at the end of the list.

Batch planning (optional)

Blank = 1 lb. One pound is 7,000 grains.

Grain To CC Formula

The following equation is used to calculate the number of cubic centimeters from grains.

CC = gr × VMD
  • Where CC is the cubic centimeter (CC)
  • gr is the grains
  • VMD is the volume measured density

To calculate CCs from grains, multiply the grains by the volume measured density.

Grains to Cubic Centimeters Conversion Table (Assumes VMD = 14.64 gr/cc ≈ 240 gr/in³)
Grains (gr) Cubic Centimeters (cc)
10.068
20.137
30.205
40.273
50.341
60.410
70.478
80.546
90.615
100.683
120.819
151.024
181.229
201.366
251.707
302.048
352.390
402.731
453.073
503.414
* Rounded to 3 decimals. Uses CC = Grains ÷ VMD. Assumes VMD = 14.64 gr/cc (equivalently ≈ 240 gr/in³). 1 in³ = 16.387 cc.

What is a grain?

Definition:

A grain is a unit of weight equal to .065 grams.

How to Calculate Grain To CC?

Example Problem:

The following example outlines the steps and information needed to calculate cc from grains.

First, determine the number of grains. In this example, the number of grains is 40.

Next, determine the volume measured density. In this example, this is determined to be .06479791.

Finally, calculate the CC from grains using the formula above:

CC = gr * VMD

CC = 40 * .06479791

CC = 2.591 cm3