Cubic Metres to Tonnes Bark Mulch Converter
Instantly calculate the weight of bark mulch and wood chippings in metric tonnes based on volume in cubic metres. Accurate for landscaping, gardening, and driveway projects.
Calculate Your Mulch Weight
Enter the volume of bark mulch in cubic metres and select the material type below to get an instant, accurate conversion to metric tonnes.
Weight Converter
Enter your volume to see the estimated weight in tonnes
Calculate volume: Length (m) × Width (m) × Depth (m)
Density varies based on chip size, moisture, and compaction
Estimated Weight
Converted based on standard material densities
Bark Mulch Density Reference Chart
Standard average densities for different types of bark mulch and wood chippings. Use this to verify your manual calculations or adjust the estimator above.
| Mulch Type | Density (Tonnes/m³) | Density (kg/m³) | Common Use |
|---|---|---|---|
| Fine Bark Mulch (Loose) | 0.25 | 250 | Flower beds, borders, weed suppression |
| Fine Bark Mulch (Compacted) | 0.30 | 300 | Settled pathways, long-term beds |
| Chunky Bark (Loose) | 0.20 | 200 | General landscaping, decorative borders |
| Chunky Bark (Compacted) | 0.25 | 250 | Driveways, heavy-duty garden paths |
| Play Wood Chips (Loose) | 0.15 | 150 | Playgrounds, safety surfacing, animal bedding |
Bark Mulch Weight FAQ
Everything you need to know about converting bark mulch volume to weight for your landscaping project.
On average, one cubic metre of loose bark mulch weighs between 0.15 and 0.25 metric tonnes, depending on the size of the chippings. Fine bark mulch is denser and can weigh up to 0.30 tonnes per cubic metre when compacted.
Yes, significantly. Wood acts like a sponge, so wet or freshly delivered bark mulch can weigh 20% to 40% more than dry, seasoned mulch due to the absorbed moisture content.
To calculate the volume in cubic metres (m³), measure the length, width, and desired depth of the area in metres, then multiply them together: Volume = Length × Width × Depth. For example, a flower bed 4m long, 2m wide, and 0.05m (5cm) deep requires 0.4 m³ of mulch.
Coverage depends on the depth. At a standard depth of 5cm (0.05m), 1 tonne of chunky bark mulch (approx. 0.20 t/m³) will cover approximately 8 to 10 square metres. Fine bark mulch will cover slightly less area per tonne due to its higher density.