Hobby and Craft

  • Gold Melt Value Calculator
    Calculate the intrinsic melt value of gold from weight, karat purity, and the current spot price per troy ounce. Supports grams, pennyweight, and troy ounces.
  • Paper Thickness (Stack Height) Calculator
    Calculate the total stack height of a pile of paper from the number of sheets and the caliper (thickness) per sheet, in mm, cm or inches.
  • Tent Size Calculator
    Calculate the right tent floor area for your group. Enter number of people and comfort level to get recommended m² and square footage instantly.
  • Clay Shrinkage Calculator
    Calculate clay shrinkage rate or fired size for pottery. Find linear shrinkage % from wet and fired dimensions, or predict the fired size from a known rate.
  • Hammock Hang Calculator
    Calculate hammock anchor height, center sag and strap tension from distance, hang angle and body weight. Get the ideal 30-degree hang fast.
  • Helium Balloons Calculator
    Find how many helium balloons it takes to lift a given weight. Enter weight, balloon size and gas densities to get the count, lift and balloon volume.
  • Paper Weight Calculator
    Calculate the total weight of paper from sheet size, grammage (gsm) and number of sheets. Get weight in grams and kilograms instantly.
  • Price per Round Calculator
    Calculate the price per round instantly. Enter total price and number of rounds to get cost per round and cost per 100 rounds for easy comparison.
  • Picture Frame Calculator
    Calculate the outer frame size and length of moulding needed for a picture frame, including mat border and mitre-cut allowance.
  • Bag Fabric Calculator
    Estimate the fabric area needed to sew a box-bottom bag or tote from its width, height, depth and seam allowance. Free, instant results in cm² and m².
  • Shoelace Length Calculator
    Calculate the ideal shoelace length from your eyelet pairs, spacing, and width gap. Get the right lace size in centimeters and inches with knot allowance.
  • Cross-stitch Fabric Calculator
    Calculate cross-stitch design size and the fabric you need from stitch count, fabric count and margin. Works for Aida, evenweave and linen.
  • Curtain Size Calculator
    Calculate the right curtain width and length from your window size, fullness ratio, rod height, header and hem allowances. Free, instant and accurate.
  • Curtain Panel Calculator
    Find out how many curtain panels you need for any window. Enter window width, panel width and fullness ratio for an instant, rounded-up panel count.
  • Hexagon Quilt Calculator
    Calculate how many hexagons you need for a quilt. Enter quilt size and hexagon side length to get the count, hexagon area, and total area instantly.
  • Quilt Calculator
    Free quilt calculator. Enter your quilt width, height and block size to find how many blocks you need across, down and in total.
  • Quilt Binding Calculator
    Calculate how many binding strips and how much fabric you need to bind a quilt. Enter quilt size, strip width, and fabric width for instant yardage.
  • Fabric Calculator
    Calculate how many yards of fabric you need from the total area and the usable fabric width. Free, fast estimator for sewing and upholstery projects.
  • Half Square Triangle Calculator
    Calculate the cut square size for half square triangles. Just add 7/8" to your finished HST size to get the perfect starting square for quilting.
  • Belt Size Calculator
    Use the Belt Size Calculator to find your correct belt size from your waist measurement. Quick, accurate rule: belt size = waist size + 2 inches.
  • Bean Bag Filling Calculator
    Calculate how many litres or cubic feet of bean bag filler beads you need based on your bag's shape and dimensions, filled about two-thirds full.
  • Balloon Arch Calculator
    Estimate how many balloons you need for an arch. Enter arch length, balloon diameter, and balloons per cluster to get a quick, accurate total.
  • Tablecloth Size Calculator
    Calculate the ideal tablecloth size from your table dimensions and desired drop. Get the exact length and width you need for any rectangular table.
  • Scale Calculator
    Convert between real size and scaled size using any scale ratio (1:N). Perfect for model building, maps, drawings and architecture.

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