Calculate the perfect amount of soil for your garden project. Whether you're filling raised beds or topdressing your lawn, get accurate estimates instantly.
Getting the right amount of soil is crucial for successful gardening. Too little leaves plants struggling, while too much wastes money. Our calculator helps you get it just right.
A standard 2 cubic foot bag of dry potting soil weighs about 40–50 pounds (18–23 kg). Denser materials weigh far more — dry topsoil runs roughly 75–80 lbs per cubic foot. Use the table below for quick planning estimates by soil type.
| Soil type | 1 cubic foot | 2 cu ft bag | 1 cubic yard |
|---|---|---|---|
| Potting soil (dry) | 20–25 lbs (9–11 kg) | 40–50 lbs (18–23 kg) | 540–680 lbs (245–310 kg) |
| Topsoil (dry) | 75–80 lbs (34–36 kg) | 150–160 lbs (68–73 kg) | 2,000–2,150 lbs (900–975 kg) |
| Topsoil (wet) | 100–110 lbs (45–50 kg) | 200–220 lbs (90–100 kg) | 2,700–3,000 lbs (1,225–1,360 kg) |
| Garden soil / compost blend | 30–40 lbs (14–18 kg) | 60–80 lbs (27–36 kg) | 800–1,100 lbs (365–500 kg) |
| Wood mulch (dry) | 15–20 lbs (7–9 kg) | 30–40 lbs (14–18 kg) | 400–550 lbs (180–250 kg) |
Weights are typical planning averages. Moisture is the biggest variable — saturated soil can weigh 50% or more above its dry weight — and bagged products vary by brand and mix. Check the bag label or ask your supplier for exact weights.
Drag plants, paths, and walls onto a canvas, then walk through your garden in first person — no design skills needed.