🧵 Hobby & Craft Calculators
3D printing costs, fabric yardage, lumber board feet and coffee brew ratios.
3D Print Cost CalculatorWork out what a 3D print really costs: filament, electricity, printer wear and failed prints, plus a suggested sale price with your markup.Baker's Percentage CalculatorTurn baker's percentages into gram weights for bread, sourdough and pizza. Start from flour weight or from dough balls, with starter and effective hydration.Blanket Yarn CalculatorEstimate how much yarn a knit or crochet blanket needs by size and yarn weight, from baby to king, plus skeins to buy with a safety margin and total cost.Board Foot CalculatorCalculate board feet for hardwood and lumber from thickness, width and length, add a waste allowance, and see the total cost at your price per board foot.Candle Wax CalculatorFind how much wax and fragrance oil to melt for a batch of container candles, from the water your jar holds, plus cost per candle and a retail price.Coffee Ratio CalculatorFind how much coffee to use for pour-over, French press, AeroPress, drip, cold brew or espresso, in grams and tablespoons, from your water or number of cups.Cross Stitch Fabric CalculatorFind the finished size of a cross stitch design and how much Aida or evenweave to cut, from the stitch count, fabric count and margin, in inches and cm.Epoxy Resin CalculatorWork out how much epoxy resin you need for a table top, coasters or a river table, split into part A and part B, with kits to buy and total cost.Fabric Yardage CalculatorEstimate how many yards of fabric to buy from your cut pieces, fabric width, pattern repeat and shrinkage allowance, rounded up to the nearest 1/8 yard.Knitting Gauge CalculatorTurn your swatch gauge into stitches to cast on and rows to knit, rounded to a pattern multiple, or see how a different gauge changes a pattern's size.Photo Print Size CalculatorSee how big you can print a photo from its pixel dimensions at 300, 240 or 150 DPI, plus the effective DPI and crop for 4×6 up to 24×36 prints.Quilt CalculatorWork out quilt backing yardage and panel layout, binding strips and yardage, and the right pre-cut batting size from your quilt top width and length.