Enter the oven dry weight (g), the SSD weight (g), and the weight in water (g) into the Bulk Specific Gravity Calculator. The calculator will evaluate the Bulk Specific Gravity.

## Bulk Specific Gravity Formula

The following formula is used to calculate the Bulk Specific Gravity.

GSB = DW / (SSD - WW)

Variables:

- GSB is the Bulk Specific Gravity ( )
- DW is the oven dry weight (g)
- SSD is the SSD weight (g)
- WW is the weight in water (g)

To calculate the bulk specific gravity, divide the oven dry weight by the difference between the SSD weight and the weight in water.

## How to Calculate Bulk Specific Gravity?

The following steps outline how to calculate the Bulk Specific Gravity.

- First, determine the oven dry weight (g).
- Next, determine the SSD weight (g).
- Next, determine the weight in water (g).
- Next, gather the formula from above = GSB = DW / (SSD – WW).
- Finally, calculate the Bulk Specific Gravity.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

oven dry weight (g) = 50

SSD weight (g) = 30

weight in water (g) = 20

GSB = DW / (SSD – WW) =** ** ?