Mulch bed
10×10 bed at 3 inches
13 Vigoro 2 cu ft bags
25 cubic feet ÷ 2 cubic feet per bag = 12.5, rounded up to 13 bags. Enter your local bag price to estimate the material cost.
Mulch 10×10 walkthrough
Free DIY material calculators
You’re in the aisle guessing gallons and bags
Turn project measurements into material quantities and a practical shopping budget. Use manufacturer coverage information, review worked examples, and replace dated example prices with your local quotes.
Price Index 2026-08-27
From measurements to a shopping list
- Measure the job. Start with the area, depth, or length the tool asks for. Calculations run in your browser.
- Choose the material. Product coverage and pack size affect how much you need. Check the cited specifications against the product you plan to buy.
- Check the budget. Replace dated example prices with your store’s quote. A blank price is an item you still need to price.
Worked examples you can check
Follow the quantities and assumptions for these example project sizes, then adjust them for your own measurements.
Concrete patio
12×12 patio at 4 inches
80 × 80 lb bags · $478.40
48 cubic feet ÷ 0.60 cubic feet per bag = 80 bags. At the dated August 27, 2026 example price of $5.98, that is $478.40 before tax and other project costs.
Patio bag countWall insulation
R-13 for a 12×12 room
4 bags @ 106.56 sq ft/bag
Each bag contains 11 batts covering about 106.56 square feet in total. The example rounds up to four bags; enter your local bag price.
R-13 room takeoffBlown-in attic
AttiCat for 1,000 sq ft
19 bags at R-38
The manufacturer chart specifies 19 bags per 1,000 square feet at R-38 and a minimum installed thickness of 13.5 inches. Check the product instructions for your installation.
AttiCat 1,000 sq ftPrice the whole tool rental
Check the rental period, accessories, transport and return terms before comparing rent with buy.
Read the guideOpen a calculator
Choose a project below. Each tool explains its inputs, assumptions, and the costs outside its estimate.
Paint
Paint
Estimate gallons for your walls and ceiling, with openings, coats, and extra paint included.
Paint calculator
Exterior paint
Turn measured exterior wall areas into gallons and an editable paint budget.
Exterior calculatorTile
Tile
Estimate tile counts and mortar bags from your floor area, tile size, and allowance for cuts.
Tile calculator
Grout
Find a bag count for your tile size, thickness, and joint width using a product coverage chart.
Grout calculatorWalls
Drywall
Estimate 4-by-8 sheets for walls and ceilings, allowing for doors, windows, and waste.
Drywall calculator
Drywall mud
Estimate how many pails of joint compound to buy for the area you are finishing.
Mud calculator
Insulation
Estimate R-13 batt bags using the dimensions and number of batts in the selected pack.
Insulation calculator
Blown-in attic
Estimate AttiCat bags for your attic area and selected R-value using the manufacturer chart.
Blown-in calculatorYard
Fence
Estimate panels, posts, and concrete for a straight fence run. Check gates and corners separately.
Fence calculator
Roof
Roofing
Estimate shingle bundles from a simple roof plan and pitch. Accessories are separate.
Roofing calculatorPractical project guides
Bagged concrete or ready-mix?
Compare quantity, transport weight, and an itemized delivered quote for a 12-by-12 patio.
Read the guideBudget for a painted room
See why coverage and the amount you buy are different, and list the supplies beyond paint.
Read the guideMulch bags or bulk delivery?
Use a break-even calculation that includes delivery rather than comparing unit prices alone.
Read the guideBuild a complete materials budget
A reusable checklist for exclusions, local quotes, waste, delivery, and tax.
Read the guideBudget the paint prep
Inspect the surface, price the needed prep work and check older paint before shopping.
Read the guideUnderstand what your estimate includes
Quantity estimates use the coverage information and assumptions explained beside each tool. Dollar examples use the published August 27, 2026 retailer snapshot where available.
Prices vary by store and date. These are planning examples, not live quotes. Labor, delivery, tax, tools, preparation, and project-specific accessories may cost extra.
Check local prices
Replace the dated example price with a quote for the exact product and location. Leave an unpriced item visible as a gap in your budget.
Check product coverage
Follow the manufacturer source links and review the calculation. Changing the material may also change the quantity you need.
Choose an allowance
Waste allowances are planning choices. Package rounding and the shape of the job affect the amount you buy.
Keep your inputs private
Calculator entries are processed in your browser. There is no account or calculation-upload service.
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The pack price is not the whole quote
Compare two local material quotes with pack rounding, minimum orders, sales tax and delivery. Start with the quantity from a calculator here.