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The Flood Water Volume calculator computes the volume of water covering an area at an approximate average depth. 
Instructions: Choose units and enter the following:
- (A) Area in Water
- (d) Depth of Water
Volume of Water (V): The calculator returns the approximate volume of water on the area in Acre-Feet, gallons and cubic meters. However, these can be automatically converted to other volume units (e.g. liters, cubic yards) via the pull-down menu.
The Math / Science
A simple formula for volume is:
V = A * d
where:
- V = Volume
- A = Area
- d = depth of area
This Flood Water Volume uses this formula. Note: this does not take into account the natural slope on the edge that is usually the case with bodies of water such as ponds and lakes. Nonetheless, this can be a useful tool if the area is significant.
| Type of snow or ice | (kg/m3) |
| Fresh New snow | 50-70 |
| Damp new snow | 100-200 |
| Settled snow | 200-300 |
| Depth hoar | 100-300 |
| Wind packed snow | 350-400 |
| Firn (granular) | 400-830 |
| Very wet | 700-800 |
| Glacier ice | 830-917 |
| Rain/Melt | 997 |
Hydrology (Water, Rain and Snow) Calculators:
- Snow Pack to Liquid Water Calculator
- Volume of water in snow or rain
- Weight/Mass of Snow on an Area.
- Weight of Snow on a Rectangular Area.
- Weight of Snow on a Roof.
- Weight of Snow on a Polygon Shaped Area.
- Volume of Water in a Rainfall
- Flow Rate of Broad Crested Weir
- Water Capillary Rise.
- Volume of Flood Water.
- Number of sandbags needed to build a wall or dike.
- Water Saturation Ratio
- Rain Fall Harvesting Calculator
- Peak Discharge from Drainage Basin Runoff
- Gauckler-Manning Equation
- Cipolletti Weir Flow Rate
