Estimate how much soil you need to fill a raised garden bed. Calculate cubic feet, cubic yards, bag count, bagged soil cost, bulk soil cost, compost amount, topsoil amount, and raised bed mix amounts.
Rectangular mode:
The calculator multiplies length, width, fill depth, and number of beds to estimate total raised bed soil volume.
Square mode:
The calculator uses the same length and width value to estimate a square raised bed.
Round mode:
The calculator uses the bed diameter to calculate the circular area, then multiplies by fill depth.
Mix estimate:
The calculator breaks the total volume into compost, topsoil, and peat or coco coir amounts based on your mix percentages.
A raised bed soil calculator helps estimate how much soil to buy before filling a raised garden bed, planter box, vegetable bed, or elevated growing box.
It can help compare bagged soil and bulk soil, estimate project cost, plan soil mix ratios, and avoid buying too little material for your raised bed.
Your result shows the total raised bed soil needed in cubic feet and cubic yards, the number of bags needed, estimated bagged soil cost, estimated bulk soil cost, bed area, fill depth, settling allowance, and suggested mix amounts for compost, topsoil, and peat or coco coir.
Multiply the raised bed length by the width, then multiply by the fill depth in feet. If you have more than one bed, multiply the result by the number of beds.
Many raised vegetable beds use 8 to 12 inches of soil. Deeper beds may be better for root crops, larger vegetables, and plants with deeper root systems.
One cubic yard equals 27 cubic feet. Bagged soil is often listed in cubic feet, while bulk soil is commonly sold by the cubic yard.
Yes. Raised bed soil can settle after watering and planting. Adding 5% to 15% extra is a common way to account for settling and uneven filling.
No. This is an estimate. Actual soil needs can vary based on bed shape, how full you want the bed, soil compaction, moisture, settling, and the type of soil mix used.