Planter Fill
Account for container shape, retained soil and loose stock before buying bags.
Open the toolOne project. A few useful next steps.
A clearer plan for your next planter.
Estimate what you need, understand the calculation, then keep a soil-shopping workbook you can edit.
Start with Planter Fill →
Work out the soil you need
Use Planter Fill with your container dimensions, retained soil and loose stock.
Check the details behind the estimate
Read the guide to partly filled planters before finalizing your shopping plan.
What is already inside the pot?
Separate retained soil from loose stock before you buy more bags.
ExploreKeep your plan in a workbook
Download the soil inventory spreadsheet and enter your plan locally. Values are not copied automatically.
Keep ten planter groups in one list
A downloadable sheet for target fill, retained soil and loose inventory.
Explore
Ideas for the project
These are illustrative product concepts. They are not available to buy.
Calibrated 10-Liter Expandable Coco Coir & Perlite Bricks (4-Pack)
Expands to exactly 40 L of airy potting mix. Store dry on a shelf instead of hauling half-used damp bags.
View product conceptAdjustable Tapered-Planter Internal False Bottom & Void Fillers (Set of 2)
Replaces heavy gravel in tall frustum pots, cutting soil volume needed by up to 35% while preventing root rot.
View product conceptSolid Brass Deep-Root Soil Sampler & Moisture Probe
Check what is actually happening at the bottom of a 45 cm pot before watering or repotting.
View product concept