Beds & soil.
Measured clearly.
Soil, compost, mulch and container-volume calculators for beds and pots.
Turn a physical garden into checkable quantities.
Healthy gardens begin with a measured growing space and a soil plan that fits it. These tools translate internal bed or container dimensions into purchasable volumes while keeping mix ratios and bag sizes visible.
Choose a calculator
5 focused tools
Raised bed soil
Calculate cubic feet, cubic yards, liters and bags of soil for any rectangular raised garden bed.
Mulch
Estimate mulch volume and whole bags from bed area and target depth.
Compost
Estimate compost volume for top-dressing or incorporating into a garden bed.
Container soil
Calculate potting mix for round containers by diameter, height and quantity.
Soil mix ratio
Split a target soil volume into topsoil, compost and aeration components.
A practical sequence
- Measure the usable inside dimensions.
- Choose the finished fill or application depth.
- Calculate bulk volume before converting to bags.
- Confirm settling and product coverage with the supplier.
Common planning mistakes
- Measuring outside frame dimensions.
- Mixing inches and feet.
- Treating compost as a complete soil in every situation.
- Ignoring the space reserved for mulch or watering.
Beds & soil FAQ
Should I buy soil by bag or cubic yard?
Bags suit small containers and top-ups; bulk delivery is often more practical for multiple or deep beds. Compare delivered price and access.
Do soil volumes settle?
Many loose mixes settle after watering. Use supplier guidance and avoid compacting root-zone soil heavily.