1. What is the Litres per Hectare Calculation?

The litres per hectare calculation converts rainfall measurements into total water volume over a specific area. This is particularly useful for agricultural planning, irrigation management, and water resource assessment in Australia.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• 1 mm of rain = 1 litre per square metre
• 1 hectare = 10,000 square metres
• Therefore, 1 mm rain over 1 ha = 10,000 litres

Explanation: The calculation multiplies the rainfall depth by the area to determine total water volume.

3. Importance of Rainfall Volume Calculation

Details: Knowing the total volume of rainfall helps farmers estimate water availability for crops, plan irrigation schedules, and manage water storage effectively.

4. Using the Calculator

Tips: Enter rainfall in millimetres (mm) and area in hectares (ha). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why multiply by 10,000?
A: Because 1 hectare equals 10,000 square metres, and 1 mm of rain over 1 m² equals 1 litre.

Q2: How accurate is this calculation?
A: It's mathematically precise for the given inputs, but actual field conditions may vary due to runoff, evaporation, or uneven rainfall distribution.

Q3: Can I use this for smaller areas?
A: Yes, you can enter fractional hectares (e.g., 0.5 for half a hectare).

Q4: What's typical rainfall for Australian agriculture?
A: Varies widely by region - northern Australia may receive 1000+ mm annually while some southern areas receive less than 300 mm.

Q5: How does this relate to dam storage?
A: This calculation helps estimate how much rainfall could potentially fill dams or tanks when combined with catchment area and efficiency factors.