How to Use the Livestock Slurry Storage Required Calculator

The Livestock Slurry Storage Calculator helps you estimate slurry storage needs for your farm based on livestock types, numbers, and housing periods. Follow these steps to calculate your requirements, save your data, and download a PDF summary for planning.

Step 1: Enter Livestock Data

The calculator displays a table with 14 livestock types (e.g., Dairy Cow, Beef Suckler Cow, Calf), each with a predefined slurry volume (m³/week):

1. No Of Head: Enter the number of animals for each relevant livestock type (e.g., 50 for Dairy Cows with over 9000 litre milk yield).
2. Slurry (%): Adjust the slurry percentage if needed (default is 100%). For example, use 80% if dilution occurs.
3. Housing (Wks): Enter the number of weeks livestock are housed (e.g., 20 weeks for winter housing).
4. View Results: The table updates automatically:
   • Slurry/Wk (m³): Calculated as Heads × Volume × (Slurry % / 100). E.g., 50 cows × 0.45 m³/wk × 100% = 22.50 m³/week.
   • Total Slurry (m³): Slurry/Wk × Housing Weeks. E.g., 22.50 × 20 = 450.00 m³.

Step 2: Review Totals

Below the table, check the summary cards:

• Total Heads: Sum of all livestock entered (e.g., 50).
• Total Slurry / Week (m³): Total weekly slurry production (e.g., 22.50 m³).
• Total Slurry For Period (m³): Total slurry for the housing period (e.g., 450.00 m³).
• Total Gallons: Total slurry in gallons (1 m³ ≈ 220 gallons; e.g., 450.00 × 220 = 99,000 gallons).

Step 3: Download Your Summary

You can save your calculations and download a PDF for farm planning or compliance:

1. Download PDF: Scroll to the Download Your Slurry Storage Summary section. Click Download PDF (enabled after entering valid data). A file named slurry_storage_summary.pdf will download, detailing your inputs, totals, and farm details (if configured).

Your data is securely stored per our Privacy Policy.

Plan Your Farm’s Slurry Storage

Managing slurry storage is critical for livestock farmers to ensure compliance, optimize resources, and protect the environment. The Livestock Slurry Storage Calculator on makes this task simple, accurate, and efficient. Whether you run a dairy, beef, or mixed farm, our tool helps you calculate slurry production based on your livestock numbers and housing periods. Here’s why it’s a must-have for modern farmers and how it can streamline your operations.

Why Slurry Storage Planning Matters

Slurry, a mix of manure and water, is a valuable fertilizer but requires careful storage to meet regulations and avoid environmental issues like runoff. In the UK and Ireland, for example, farms must have adequate storage for periods when spreading is restricted (e.g., winter months). Underestimating storage needs can lead to costly upgrades or fines, while overestimating wastes space and resources. Our calculator provides precise estimates to help you:

• Ensure Compliance: Meet regulations like the UK’s Nitrate Vulnerable Zones (NVZ) rules or Ireland’s Nitrates Action Programme.
• Optimize Storage: Plan tank or lagoon capacity to save costs.
• Reduce Waste: Accurately calculate slurry to use as fertilizer, minimizing excess.

Benefits of Using Slurry Storage Required Calculator

• Comprehensive Livestock Data: Covers 14 livestock types, from high-yield dairy cows (0.45 m³/week) to calves (0.05 m³/week), ensuring accuracy for diverse farms.
• Flexible Inputs: Adjust slurry percentage (e.g., for diluted slurry) and housing weeks to match your farm’s setup.
• Instant Calculations: See weekly and total slurry production (in m³ and gallons) in real-time, with totals for all livestock.
• Professional PDF Reports: Download a detailed summary (login required) for farm records, budgeting, or regulatory submissions.

Example: Planning for a Dairy Farm

Imagine you manage 50 dairy cows (over 9000 litre milk yield) housed for 20 weeks with 100% slurry production:

• Input: 50 heads, 0.45 m³/week volume, 100% slurry, 20 weeks.
• Output: 22.50 m³/week (50 × 0.45), 450.00 m³ total (22.50 × 20), and 99,000 gallons (450.00 × 220).
• Action: Save the calculation as “Dairy 2025” and download the PDF to plan a 450 m³ storage tank or verify existing capacity.

This insight helps you budget for storage upgrades or confirm compliance with local regulations.