Construction
Mulch Circle Volume Calculator
Mulch volume for a circular bed.
Free to use — no sign-up or login.
Area
ft²
Volume
ft³
Volume
yd³
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
|---|---|---|---|---|---|---|
Circle area is π r². Radius 7 ft at 2 inches is 153.94 ft² and 25.66 ft³.
A ring around a tree is the mulch annulus calculator.
Radius, not diameter
The field is the radius. A 7 ft radius reaches 14 ft across.
Depth turns area into volume
π times 7² is the area. Two inches is 2/12 ft, so the disk volume is 25.66 ft³.
Worked example: Circle Mulch
Radius 7 ft, depth 2 in. Volume 25.66 ft³ and 0.95 yd³.
\[ V = \pi (7)^{2} \times 2/12 \]
Frequently asked questions
What does the Circle Mulch – π r² Times Depth measure?
Radius 7 ft, depth 2 in. Volume 25.66 ft³ and 0.95 yd³.
How many decimal places does Circle Mulch – π r² Times Depth show?
Radius 7 ft, depth 2 in. Volume 25.66 ft³ and 0.95 yd³. Lengths, areas, volumes, and money use two decimals. Purchase counts are whole numbers.
Does Circle Mulch – π r² Times Depth include waste?
Circle mulch fills the whole disk. It does not subtract a hole or count bags.
Can Circle Mulch – π r² Times Depth mix units?
No. Circle Mulch – π r² Times Depth expects every input in the unit printed on its label.
Is Circle Mulch – π r² Times Depth a code or structural check?
No. Circle Mulch – π r² Times Depth is a quantity estimate. Local rules and site conditions stay outside the formula.
References
Assumptions and limitations
No bag count. A ring around a tree is the annulus page, not this full disk.