Tapestry Crochet Yarn Calculator

How this works

For each color, the calculator multiplies your stitch count by your yards per 100 stitches rate, then adds a safety buffer and rounds up to whole yards:

• Raw yards = stitch count × yards per 100 stitches ÷ 100
• Yards to buy = raw yards × (1 + buffer%), rounded up
• Share = this color's stitches ÷ total stitches

Each color is rounded up on its own, because you buy yarn one skein per color — not as one shared pool. The shares are each color's portion of the whole project; because each is rounded to one decimal, they may not add up to exactly 100%. That's expected rounding, not a bug.

Want a shopping count instead of yards? Enter your yards per skein (from the ball band) and the calculator adds a Skeins column — each color's buy-yards divided by the skein length, rounded up — plus a project skein total. Leave it blank to get yardage only.

How to calibrate yards per 100 stitches

The default of 5 is only a worsted-weight starting point. Your real rate depends on your hook, your tension, and the stitch you work in. The reliable way to find it is to measure:

1. Crochet a swatch in tapestry crochet using the same hook and yarn as your project.
2. Count the stitches in the swatch (rows × stitches per row).
3. Unravel it and measure the yarn used, in yards.
4. Divide: yards ÷ stitches × 100 = your yards per 100 stitches. Enter that number above.

Crocheters don't tend to think in "inches per stitch," so this single calibrated number does the work for you. Measure once and reuse it for every project at that gauge.

Why tapestry uses more yarn than plain crochet

In tapestry crochet you carry the colors you aren't using along the top of the previous row and crochet over them, so they're hidden inside the stitches. That carried strand is extra yarn that plain single-color crochet never spends. The more often you switch colors — and the longer each carry runs — the more it adds up. That's why the buffer here defaults to 15% rather than the 10% you might use for solid crochet. If you work slip-stitch colorwork instead of carrying full strands, the mosaic crochet yarn calculator uses a lower carry overhead. Knitters carrying floats across the back of stranded colorwork should reach for the Fair Isle yarn calculator instead.

Tips for accurate tapestry yardage

• Buy all of each color in the same dye lot — color counts mean you'll use a full skein of some colors, and lots can shift noticeably.
• Carry your floats firmly but not tightly. Loose carries waste yarn and pucker; very tight ones distort the fabric.
• Swatch in your pattern. Dense motif areas and long solid runs consume yarn at different rates, so calibrate on something representative.
• Add a little buffer for finishing and joining tails — weaving in ends and seaming eats more yarn than people expect.