Free DIY calculators — no signup Know exactly
Know exactly
how much you need.
Precise quantity and cost calculators for home and DIY projects. Enter your measurements, get accurate results, material lists, and costs in seconds.
Real quantitiesSquares, bags, yards and more
Instant resultsNo signup, no waiting
Shopping readyMaterial lists & costs you can use
Popular Calculators
Trusted by DIYers and pros for accurate planning and smarter builds.
Concrete Calculator Slabs, footings, bags, and cost. Decking Calculator Boards, framing, and deck cost. Landscaping Calculator Mulch, soil, gravel, and sand. Roofing Calculator Shingles, squares, and roof cost. Interior Calculator Paint, tile, flooring, and drywall. HVAC Calculators BTU sizing and mini-splits.
Landscaping
Mulch, sand, soil and cubic yards — figure out how much bulk material to order by area and depth.
Why CalcBooth
- Built for projects: every tool asks for the few measurements that matter and returns a real quantity — squares of roofing, bundles of shingles, the cost of the job.
- Walk in ready: results come with a shopping list, so you know exactly what to buy before you get to the store.
- Free & instant: the math runs right in your browser, updates as you type, and needs no account.
CalcBooth tools give carefully built planning estimates. Confirm exact quantities and pricing with your supplier or contractor before you buy.