Volume Formula:
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The Flower Pot Soil Calculator estimates the volume of soil needed to fill a cylindrical flower pot based on its radius and height. This helps gardeners purchase the right amount of soil for their planting needs.
The calculator uses the cylindrical volume formula:
Where:
Explanation: The formula calculates the space inside a perfect cylinder, which approximates most standard flower pots.
Details: Knowing the exact soil volume helps prevent over-purchasing potting mix and ensures proper root space for healthy plant growth.
Tips: Measure the radius (half the diameter) and height of your pot in feet. Enter these values to get the soil volume in cubic feet.
Q1: What if my pot isn't perfectly cylindrical?
A: The calculation will be approximate. For irregular shapes, consider adding 10-15% extra soil.
Q2: How do I convert cubic feet to bags of soil?
A: Most bagged soil is sold by quarts or liters. 1 cubic foot ≈ 25.7 dry quarts.
Q3: Should I measure inside or outside dimensions?
A: Always use inside dimensions for accurate soil volume calculation.
Q4: Does this account for plant displacement?
A: No, this calculates total volume. Reduce by 10-20% for plant root balls.
Q5: What about pots with tapered sides?
A: Use the average radius for slightly tapered pots. For severely tapered pots, use the cone volume formula instead.