Home & DIY Calculators

Enter the room dimensions, doors and windows, coats and the coverage on the can to get gallons needed — with the wall area worked shown.

Pick the pour shape, enter the dimensions, and read cubic yards plus a bag count at the yield of the bag size you choose (60 lb, 80 lb…).

Enter the floor area and the coverage per box to get boxes needed, with an editable waste percentage (10% standard, 15% for diagonal) shown in the working.

Enter the area, tile size, grout width and waste allowance to get the tile count — the grout line is part of each tile's pitch, so small tiles don't under-order.

Enter the rise over run (any units, same for both) to get the conventional x:12 pitch, the angle in degrees, and the slope multiplier roof area needs.

Enter the length and width to get the floor area in square feet and square metres — with an optional subtracted rectangle for L-shaped rooms.

Length × width × height in cubic feet and cubic metres — the number air conditioners, purifiers and heaters are sized against.

Enter the room dimensions, doors and windows, coats and the coverage on the can to get gallons needed — with the wall area worked shown.

Enter the wall area, ceiling height and roll dimensions to get strips per roll, strips needed and rolls to buy — with the pattern repeat added to every strip.

Enter the floor area and the coverage per box to get boxes needed, with an editable waste percentage (10% standard, 15% for diagonal) shown in the working.

Enter the area, tile size, grout width and waste allowance to get the tile count — the grout line is part of each tile's pitch, so small tiles don't under-order.

Enter the room size and roll width (12 or 15 ft are standard) to get the seamed length to order, the seam count, and the area in square yards for pricing.

Pick the pour shape, enter the dimensions, and read cubic yards plus a bag count at the yield of the bag size you choose (60 lb, 80 lb…).

Enter the area and depth in inches to get cubic yards, plus tons at the material's density — loose dry, compacted, pea gravel and sand are preset.

Enter the bed area and depth in inches to get cubic yards and the bag count at 2 or 3 ft³ — with the 2–4 inch depth guidance built into the defaults.

Enter the bed dimensions and fill depth to get cubic yards and bag counts — vegetables want 8–12 inches, and settle is accounted for in the guidance.

Enter the bed size and plant spacing to get the plant count, rows and plants per row — spacing is clearance, so counts floor rather than round.

Enter the total run, post spacing and gate count to get the post count (with the far-end post the estimates forget), panels, and concrete bags per post.

Enter the frame size, board width, gap and stock length to get rows, boards per row and the count to buy — boards run the longer way to cut waste.

Enter the total rise and a target riser height to get the step count and the true riser height, plus tread depth from the run, stringer length, and a flag against the IRC 7¾-inch limit.

Enter the rise over run (any units, same for both) to get the conventional x:12 pitch, the angle in degrees, and the slope multiplier roof area needs.

Enter the house footprint and the pitch to get the sloped surface area, the slope factor applied, and the area in squares (100 ft²) the way roofers quote.

Enter nominal dimensions and the piece count to get board feet per piece and total, with an optional cost at the yard's price per board foot.

Enter the board length and screw count to get each position in inches from the left end, with the end screws half a bay inside the edge offset so the layout reads even.

Enter the length and width to get the floor area in square feet and square metres — with an optional subtracted rectangle for L-shaped rooms.

Length × width × height in cubic feet and cubic metres — the number air conditioners, purifiers and heaters are sized against.

Enter the room dimensions, doors and windows, coats and the coverage on the can to get gallons needed — with the wall area worked shown.

Enter the wall area, ceiling height and roll dimensions to get strips per roll, strips needed and rolls to buy — with the pattern repeat added to every strip.

Enter the floor area and the coverage per box to get boxes needed, with an editable waste percentage (10% standard, 15% for diagonal) shown in the working.

Enter the area, tile size, grout width and waste allowance to get the tile count — the grout line is part of each tile's pitch, so small tiles don't under-order.

Enter the room size and roll width (12 or 15 ft are standard) to get the seamed length to order, the seam count, and the area in square yards for pricing.

Pick the pour shape, enter the dimensions, and read cubic yards plus a bag count at the yield of the bag size you choose (60 lb, 80 lb…).

Enter the area and depth in inches to get cubic yards, plus tons at the material's density — loose dry, compacted, pea gravel and sand are preset.

Enter the bed area and depth in inches to get cubic yards and the bag count at 2 or 3 ft³ — with the 2–4 inch depth guidance built into the defaults.

Enter the bed dimensions and fill depth to get cubic yards and bag counts — vegetables want 8–12 inches, and settle is accounted for in the guidance.

Enter the bed size and plant spacing to get the plant count, rows and plants per row — spacing is clearance, so counts floor rather than round.

Enter the total run, post spacing and gate count to get the post count (with the far-end post the estimates forget), panels, and concrete bags per post.

Enter the frame size, board width, gap and stock length to get rows, boards per row and the count to buy — boards run the longer way to cut waste.

Enter the total rise and a target riser height to get the step count and the true riser height, plus tread depth from the run, stringer length, and a flag against the IRC 7¾-inch limit.

Enter the rise over run (any units, same for both) to get the conventional x:12 pitch, the angle in degrees, and the slope multiplier roof area needs.

Enter the house footprint and the pitch to get the sloped surface area, the slope factor applied, and the area in squares (100 ft²) the way roofers quote.

Enter nominal dimensions and the piece count to get board feet per piece and total, with an optional cost at the yard's price per board foot.

Enter the board length and screw count to get each position in inches from the left end, with the end screws half a bay inside the edge offset so the layout reads even.