1. What Is This Compost Calculator?

This calculator helps determine the amount of compost needed for your garden based on the area to be covered and the desired depth of compost application.

2. How Does The Calculator Work?

The calculator uses the simple volume formula:

Where:

• \( Area \) — Garden area in square feet
• \( Depth \) — Desired compost depth in inches (converted to feet for calculation)

Explanation: The calculator converts depth from inches to feet, calculates volume in cubic feet, then converts to cubic yards (since compost is often sold by the cubic yard).

3. Importance Of Proper Compost Volume

Details: Using the right amount of compost improves soil structure, provides nutrients, and enhances water retention without over-application which can harm plants.

4. Using The Calculator

Tips: Measure your garden area accurately. For new gardens, 3-4 inches of compost is typical. For existing beds, 1-2 inches annually is often sufficient.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure my garden area?
A: For rectangular areas, multiply length by width. For irregular shapes, break into rectangles or use online mapping tools.

Q2: What's the ideal compost depth?
A: Typically 1-4 inches depending on use. 3-4" for new beds, 1-2" for top dressing existing beds.

Q3: How many bags of compost equal a cubic yard?
A: About 13-14 bags of 2 cubic foot compost equal 1 cubic yard (since 27 cubic feet = 1 cubic yard).

Q4: Can I use this for potting mixes?
A: No, this calculates bulk compost for garden beds. Potting mixes have different volume requirements.

Q5: Should I account for compost settling?
A: Yes, compost settles about 20-30% over time. You may want to add 25% more than calculated.