Mulch Calculator
How many bags of mulch to cover your beds to the right depth.
What it is
Mulch Calculator tells you how many bags of mulch to buy to cover your beds and borders to the right depth, plus the total volume.
Screenshots


Features
How it works
The volume is the area times the depth; dividing by your bag size and rounding up gives the number of bags. Mulch is usually laid 5–8 cm (2–3 in) deep.
Honest limits
- Bag sizes differ between brands; set the size printed on the bag.
Questions
How many bags of mulch do I need?
Multiply the area by the depth to get the volume, then divide by the bag size and round up. Mulch Calculator does this in metric or imperial.
How deep should mulch be?
Usually 5–8 cm (2–3 in) for beds and borders.
Is Mulch Calculator free?
Yes. It is free with ads and works offline.
Private and offline
Runs entirely on your phone and works offline. No account, no sign-up, and your data stays on your device. The app shows ads through Google AdMob; see the privacy policy. Privacy policy.
Free, with ads.
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