Enter the total amount of water (cubic yards) and the total weight of cement used to calculate the water to cement ratio.

## Water to Cement Ratio Formula

The following formula is used to calculate the water to cement ratio.

W:C = WV*1680.5/CW

- Where W:C is the water to cement ratio
- WV is the water volume used (yd^3)
- CW is the cement weight (lbs)

## Water to Cement Ratio Definition

The water to cement ratio is defined as the total ratio of the weight of water to the weight of cement used in a cement mix.

## Water to Cement Ratio Example

How to calculate water to cement ratio?

**First, determine the volume of water.**Measure the total volume of water.

**Next, determine the weight of cement.**Measure the total weight of the cement used.

**Finally, calculate the ratio of water to cement.**Calculate the ratio using the equation above.

## FAQ

**What should the water to cement ratio be?**

In most cases, the water to cement ratio varies between .45 – .60 depending on the mix.