How much do you need?
Free, accurate material calculators for your project — exact bag and yard counts, an estimated cost, and where to buy or get a quote. No sign-up.
Calculators
- Concrete Calculator — bags vs ready-mix, cubic yards, and cost for a slab, footing, or post.
- Paint Calculator — gallons by room size, coats, and surface, with an estimated cost.
- Mulch & Topsoil Calculator — cubic yards and bags by area and depth, bags vs bulk.
- Gravel & Aggregate Calculator — cubic yards and tons by stone type, with coverage and cost.
Why BagsAndYards
- The units you actually buy — bags, cubic yards, tons, boxes — not just a raw volume.
- A cost estimate + where to buy, plus the option to get free quotes from local pros.
- Cited, double-checked numbers — every constant comes from a manufacturer or industry source, with the waste factor shown so you don't run short.
Guides
New to estimating materials? Read our plain-language explainers on concrete, paint, mulch, and gravel — or browse all guides.