Measure multiple beds, set the fill level, and estimate soil volume and whole bags.
Use this calculator when you are filling one or more raised beds and want to compare bulk soil with whole bags. Each bed gets its own dimensions, so different depths and sizes stay easy to check.
For each bed, multiply length by width by soil depth. Add the beds together and apply the selected fill percentage.
An 8 × 4 ft bed at 12 inches is 32 cu ft. Add a second 6 × 3 ft bed at 10 inches, and the combined volume becomes the starting point for bag planning.
Use the volume printed on the soil product for the bag count. Bagged mixes can be compressed, so the label is more useful than the bag's weight. Stage the bags near the beds before opening them.
Bed walls, liners, drainage layers, settling, fill level, and bag volume can change the practical order. The fill percentage changes volume only; it does not choose a soil blend.
This is a volume calculator only. It does not recommend soil recipes, drainage layers, settling schedules, or crop-specific growing media.
The soil fills the space inside the walls. Outside dimensions would count the wall material as soil.
It reduces the calculated volume when you plan to leave space or top the bed up later. It controls volume, not the soil mix.
No. Give each bed its own row when the dimensions or intended depth are different.
Short, practical help for the next step in this project.