All calculators
60 calculators across 6 project types. Search below, or browse by category.
Cooking & Kitchen
Convert cups to grams, scale a recipe up or down, and swap one baking pan for another without wrecking the bake.
Cooking Measurement Converter
Convert cups, tablespoons, millilitres, grams and ounces for flour, sugar, butter and other common ingredients.
Recipe Scaling Calculator
Scale a recipe up or down by servings and convert each adjusted amount into cups, tablespoons, teaspoons, millilitres or grams.
Baking Pan Size Converter
Work out whether a recipe fits the pan you own, and how much to scale the batter when it does not.
Coffee to Water Ratio Calculator
Work out how much coffee to use for any amount of water, or how much water for a given dose, at any brew ratio.
Bread Hydration Calculator
Turn a baker's percentage formula into weights: water, salt and leaven for any quantity of flour, with sourdough starter accounted for.
Pizza Dough Calculator
Work backwards from how many pizzas you want and how big each ball should be to the exact flour, water, salt and yeast.
Yeast Conversion Calculator
Convert between instant yeast, active dry yeast and fresh yeast by weight, with teaspoon and packet equivalents.
Cake Serving Calculator
Work out how many people a round or rectangular cake will serve, at wedding, party or generous slice sizes.
Turkey Thawing Time Calculator
Work out how long a frozen turkey needs to thaw in the refrigerator or in cold water, and what day to start.
Turkey Cooking Time Calculator
Estimate how long a turkey needs in the oven by weight, whether it is stuffed, and what temperature you are roasting at.
Brine Calculator
Work out the salt for a wet brine by water volume or a dry brine by meat weight, in grams and in cups for your brand of salt.
Slow Cooker Conversion Calculator
Convert a conventional oven or stovetop cooking time into slow cooker time on the low or high setting.
Recipe Cost Calculator
Turn total ingredient cost into cost per serving, and into a selling price at your target food cost percentage.
Ingredient Cost Calculator
Work out what the amount you actually used costs, from the package price and size, plus the unit price for comparing brands.
Garden & Yard
Work out how much compost, topsoil, mulch, seed or fertilizer your beds and lawn need — by the bag, the cubic yard or the truckload.
Mulch Calculator
Work out exactly how many cubic yards or bags of mulch you need for any bed, at any depth.
Bark Calculator
Calculate cubic yards, bags and weight of bark chips or bark nuggets for beds, borders and play areas.
Topsoil Calculator
Find how many cubic yards, tons or bags of topsoil you need to fill, level or top-dress an area.
Compost Calculator
Calculate how much compost you need to amend beds, top-dress a lawn or fill a planter.
Wood Chips Calculator
Estimate cubic yards and weight of wood chips for paths, play areas and around trees.
Gravel Calculator
Calculate cubic yards and tons of gravel for paths, patios, drainage and base layers.
Pea Gravel Calculator
Work out cubic yards, tons and bags of pea gravel for patios, paths, play areas and drainage.
Crushed Rock Calculator
Calculate the cubic yards and tons of crushed rock needed for bases, driveways and drainage.
Decorative Rock Calculator
Estimate the cubic yards, tons and bags of decorative rock or river rock for beds and borders.
Sand Calculator
Calculate cubic yards, tons and bags of sand for levelling, bedding, sandboxes and paver joints.
Sod Calculator
Work out how many rolls or pallets of sod you need, plus the cost, for any lawn shape.
Grass Seed Calculator
Calculate pounds of grass seed for a new lawn or an overseed, by grass type and area.
Fertilizer Calculator
Work out how much lawn fertilizer you need to hit a target nitrogen rate, by area and product.
Concrete & Masonry
Size slabs, footings, patios and paver bases. Convert cubic yards into the exact number of bags or ready-mix trucks.
Concrete Calculator
Calculate cubic yards of concrete and the exact number of bags for slabs, footings, columns and post holes.
Concrete Slab Calculator
Size a concrete slab: cubic yards, bags, weight and cost for patios, driveways, sheds and garage floors.
Footing Calculator
Calculate concrete for strip footings and foundations — cubic yards, bags, weight and cost.
Concrete Bag Calculator
Convert a concrete volume into the number of 40, 50, 60 and 80 lb bags — all four sizes side by side.
Gravel Base Calculator
Size the compacted gravel base under a slab, patio, shed or driveway — in cubic yards and tons.
Paver Base Calculator
Calculate the crushed base and bedding sand needed under a paver patio, path or driveway.
Paver Sand Calculator
Work out the bedding sand and polymeric joint sand needed for a paver patio or walkway.
Paver Calculator
Count the pavers you need for any patio, path or driveway — by paver size, with a waste allowance.
Patio Calculator
Get a complete paver patio material list: pavers, base gravel, bedding sand, joint sand and edging.
Home Improvement
Estimate paint, flooring, tile, carpet, drywall, insulation and roofing for any room or whole-house project.
Paint Calculator
Work out how many gallons of paint you need for a room, including coats, doors and windows.
Flooring Calculator
Work out square footage and how many boxes of laminate, vinyl plank or hardwood flooring you need.
Tile Calculator
Calculate how many tiles you need for a floor, wall or backsplash, by tile size and area.
Carpet Calculator
Estimate carpet square footage and square yards, including waste for seams and pattern match.
Roofing Calculator
Calculate roofing squares and shingle bundles from your roof footprint and pitch.
Insulation Calculator
Work out how many bags or batts of insulation you need for walls, attics and floors.
Drywall Calculator
Calculate drywall sheets, plus screws, joint compound and tape, for walls and ceilings.
Wallpaper Calculator
Calculate wallpaper rolls and strips for a room, allowing for pattern repeat and trimming.
Woodworking & Building
Count boards, studs, joists, posts and pickets. Convert between linear feet, board feet and finished project size.
Board Foot Calculator
Convert lumber dimensions into board feet and total cost — the unit hardwood is sold in.
Lumber Calculator
Work out how many boards you need for a run, plus linear feet, board feet and total cost.
Decking Calculator
Calculate deck boards, joists, screws and cost for any deck size, by board width and spacing.
Fence Calculator
Calculate posts, rails, pickets and concrete for a wood fence of any length.
Fence Post Calculator
Work out post count, hole depth and exactly how much concrete each fence post needs.
Framing Calculator
Full wall framing material list: studs, plates, headers, blocking and sheathing.
Stud Calculator
Count studs for a wall at 12, 16 or 24 inch spacing, and see where each one lands.
Joist Calculator
Count floor or deck joists for a given span and spacing, plus rim joists, blocking and hangers.
Beam Calculator
Estimate the load a beam carries, its tributary width, and the built-up beam material you need.
Stair Calculator
Calculate risers, treads, stringer length and total run from your total rise.
Property & Outdoor
Driveways, firewood, raised beds and snow removal — the seasonal jobs that come with owning the place.
Firewood Calculator
Work out cords from a stack size, check whether you are getting a full cord, and compare prices.
Driveway Gravel Calculator
Calculate cubic yards and tons of gravel for a new or resurfaced driveway, by layer.
Garden Soil Calculator
Work out how much garden soil or planting mix you need to fill or amend a bed.
Raised Bed Soil Calculator
Calculate the soil volume to fill a raised bed, split into a topsoil, compost and aeration mix.
Garden Mulch Calculator
Size a mulch order for vegetable beds and borders, at the shallower depths planting needs.
Snow Removal Calculator
Estimate snow volume, weight, shovelling time and how much ice melt your driveway needs.