Topsoil Calculation Formula:
From: | To: |
The Topsoil Calculator estimates the volume of topsoil needed for gardening or landscaping projects in cubic yards. It helps determine how much soil to purchase or transport for your project.
The calculator uses the formula:
Where:
Explanation: The formula calculates cubic feet first, then converts to cubic yards by dividing by 27.
Details: Accurate topsoil calculation prevents over-purchasing (saving money) or under-purchasing (preventing project delays). It also helps estimate transportation needs.
Tips: Measure the length and width of your area in feet. Determine desired depth (typically 6-12 inches for gardens). Enter all values as positive numbers.
Q1: How deep should topsoil be?
A: For lawns, 4-6 inches. For gardens, 8-12 inches. For new beds, 12-18 inches.
Q2: What if my area isn't rectangular?
A: Break irregular shapes into rectangles, calculate each separately, then sum the volumes.
Q3: How much does a cubic yard of topsoil weigh?
A: Approximately 1,000-1,500 lbs depending on moisture content and composition.
Q4: Should I buy extra topsoil?
A: It's recommended to purchase 10-15% more than calculated to account for settling and irregularities.
Q5: Can I use this for mulch or gravel?
A: Yes, the same calculation works for any bulk material measured in cubic yards.