WaterCalcLabRaised Bed Water Calculator
Convert a selected water depth over the rectangular bed surface into a water volume.
Your result
Bars compare only results in the same unit group. They are normalized, not a time-series forecast.
Planning result based on your inputs.
How this tool works
Convert a selected water depth over the rectangular bed surface into a water volume.
V = length × width × net depth/ηExample calculation
The prefilled form is a worked example. Its base-unit inputs and expected outputs are shown below; use the reset button to restore it.
| Input | Example |
|---|---|
| Horizontal length | 10 |
| Horizontal width | 8 |
| Target net water depth | 20 |
| System efficiency (separate losses) | 0.9 |
Frequently asked questions
How should I choose the inputs?
Use measurements and local records for the stated period. All preset values are illustrative examples, not recommendations.
What does this result leave out?
This does not infer water demand from bed depth. Substrate, drainage and container exposure require observation.
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Sources & method references
Method version 1.0 · Last reviewed: 2026-10-10