Garden Soil Calculator
Area × amendment depth for renovating beds.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Use bed footprint and average depth of new soil layer.
What the math is doing
Volume = area × depth when entered as length=sqrt area approximation — use area field with square workaround: enter length=width=sqrt(area) OR use length×width with depth
Frequently asked questions
Double digging?
Volume increases with deeper disturbance.
Weeds?
Solarize or smother before adding soil.
pH?
Test before amending.
Paths?
Exclude from area.