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Raised bed soil calculator

Find the soil volume and whole bags for rectangular or round raised beds, with an optional allowance and budget.

On your device · No sign-up
LIVE ESTIMATE

Raised bed soil

Your garden measurements

Use inside measurements. Results update automatically.

Units
Shape
Use the volume printed on the product bag.
Optional extra material, from 0 to 100%.
Shopping summary

Ready for the garden center

16bags to buy

40 L / bag · 5% extra allowance

Space to fill600 L
Including allowance630 L
Volume in whole bags640 L
Extra after allowance10 L
0.6 m³0.785 yd³2 m²
Estimated material cost

Add a bag price to see the budget.

Calculated on your device. No signup or uploads.

How this is calculated

Length × width × depth × quantity. Add your allowance, divide by one bag’s volume, then round up to whole bags.

Use the actual depth you plan to fill, not the full wall height if you need to leave a watering gap. An allowance adds extra material; it does not predict how your specific soil will settle.

A LITTLE GUIDANCE

Less effort. Clearer results.

01 / Raised bed soil

Raised bed soil calculator

  1. Choose metric or US units, then enter the inside length and width or diameter of your bed.
  2. Enter the depth you need to fill, the number of matching beds and the volume printed on one bag.
  3. Read the live volume and bag count. Add a bag price for a budget, then copy or download your shopping list.

Use the actual depth you plan to fill, not the full wall height if you need to leave a watering gap. An allowance adds extra material; it does not predict how your specific soil will settle.

Open dedicated tool ↗

FAQ

A few useful things to know.

How much soil fills a 2 m × 1 m raised bed?

At a 30 cm fill depth, it holds 600 liters. With 40-liter bags and no allowance, that is 15 bags. A 5% allowance raises the purchase requirement to 630 liters, or 16 bags.

Does this calculate a soil recipe?

No. It calculates total volume. Use your chosen soil recipe or the guidance for the plants you plan to grow to divide that volume into ingredients.

Can I calculate multiple beds?

Yes. The quantity field multiplies identical beds. If your beds have different sizes, calculate each size separately and combine the shopping lists.