Enter the amount of sodium (mg) and the amount of water (L) into the Sodium to Water Ratio Calculator. The calculator will evaluate and display the Sodium to Water Ratio.

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## Sodium to Water Ratio Formula

The following formula is used to calculate the Sodium to Water Ratio.

**STW = S / W**

- Where STW is the Sodium to Water Ratio (mg/L)
- S is the amount of sodium (mg)
- W is the amount of water (L)

## How to Calculate Sodium to Water Ratio?

The following example problems outline how to calculate Sodium to Water Ratio.

Example Problem #1:

- First, determine the amount of sodium (mg).
- The amount of sodium (mg) is given as: 500.

- Next, determine the amount of water (L).
- The amount of water (L) is provided as: 3.

- Finally, calculate the Sodium to Water Ratio using the equation above:

STW = S / W

The values given above are inserted into the equation below and the solution is calculated:

STW = 500 / 3 = 166.67 (mg/L)

Example Problem #2:** **

For this problem, the variables required are provided below:

amount of sodium (mg) = 600

amount of water (L) = 2

Test your knowledge using the equation and check your answer with the calculator above.

STW = S / W** = ?**