Calculateur de Paillis Gratuit
Découvrez la quantité de paillis nécessaire pour un massif en yards cubes, pieds cubes et sacs de 2 ft³. Gratuit, rapide et entièrement dans votre navigateur, sans inscription.
Mis à jour le
Mulch coverage
Extra material for cuts, spillage and breakage.
Mulch needed
1.56
cubic yards
- Volume
- 42.0cubic feet
- 2 ft³ bags
- 21bags
How this is calculated
volume ft³ = area × (depth ÷ 12); bags = ft³ ÷ 2 (rounded up)
- Bagged mulch is most commonly sold in 2 ft³ bags; there are 13.5 such bags per cubic yard.
- 2–3 in is the usual depth for beds; deeper than 4 in can hold moisture against stems.
- Bag counts are rounded up.
Questions Fréquentes
How does the Mulch Calculator work?
It applies the formula volume ft³ = area × (depth ÷ 12); bags = ft³ ÷ 2 (rounded up). Enter your measurements and the result updates instantly in your browser — nothing is uploaded and no sign-up is needed.
Why should I include a waste allowance?
Offcuts, spillage, breakage and an uneven sub-base all consume material that the raw geometry does not account for. The default allowance is deliberately modest; increase it for complex layouts, and remember that running short usually costs more in a second delivery than the surplus did.
Are the results exact?
They are a close estimate, not a guarantee. Bagged mulch is most commonly sold in 2 ft³ bags; there are 13.5 such bags per cubic yard. Real materials vary by supplier, moisture content and compaction, so confirm the rate with your supplier before placing a large order.
Is this tool free?
Yes, completely free with no registration. All calculations happen client-side in your browser.
Does it work on mobile?
Yes. The calculator is fully responsive and works on phones and tablets in any modern browser — useful when you are measuring on site.
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About the Mulch Calculator
The Mulch Calculator turns a bed size and a target depth into the mulch you need, both as bulk cubic yards and as a count of the 2 ft³ bags sold at garden centres. Enter your measurements and the result updates as you type — there is nothing to submit and nothing to wait for.
Everything runs in your browser. Nothing you enter is sent to a server, there is no sign-up, and there is no usage limit.
Who it's for
Gardeners refreshing beds in spring and landscapers quoting a job.
How the calculation works
volume ft³ = area × (depth ÷ 12); bags = ft³ ÷ 2 (rounded up)
The result depends on a few standard constants, which are stated on the page rather than hidden:
- Bagged mulch is most commonly sold in 2 ft³ bags; there are 13.5 such bags per cubic yard.
- 2–3 in is the usual depth for beds; deeper than 4 in can hold moisture against stems.
- Bag counts are rounded up.
Getting an accurate estimate
Measure twice. Small errors in a linear dimension compound, because material volume scales with two or three of them at once — a 6-inch error across a 20-foot run is over a cubic foot of material on a 4-inch pour.
Keep the waste allowance. The default is deliberately conservative: offcuts, spillage, uneven sub-base and breakage are all real, and running short mid-job usually costs more in a second delivery than the surplus did.
Round up when you order. Suppliers sell in fixed increments — quarter yards, whole bags, full boxes — so treat the figure here as the minimum you need rather than the exact amount to buy.