A 60 × 80 cm small blanket
A dry 15 × 15 cm swatch weighs 12 g. A 60 × 80 cm rectangle uses about 256 g before allowance. Add 15% for a 294.4 g estimate, or 6 whole 50 g balls. The sample yarn is not added separately.
Start with a swatch. Plan the yarn.
Estimate yarn weight and whole balls for a rectangle from the measured area and yarn weight of your own swatch.
KNITKIND / 04
Swatch yarn estimate
Use the whole swatch area that corresponds to its weight. Yarn weight always uses grams.
YOUR CALCULATION
Estimated yarn weight
294.4g
whole balls6
Grams per ball50 g
Before allowance256 g
Allowance added (15%)38.4 g
An area-based estimate for the same fabric and yarn. Add allowance for borders, finishing and any swatch you keep separately.
Scale the same fabric by area
YOUR SWATCH15 × 15 cm
225 cm² → 12 g
YOUR PROJECT60 × 80 cm
4,800 cm² → 256 g
256 g × (1 + 15 / 100) = 294.4 g · round up to 6 whole balls
WORKED EXAMPLE
Try a worked example
FROM INPUT TO PLAN
How to use this result
- 01
Weigh the dry, finished swatch without needles or other objects. Use the whole swatch dimensions corresponding to that weight.
- 02
Enter the finished rectangular project size, an allowance percentage, and the grams per ball from the yarn label.
- 03
The estimate assumes the same yarn, fabric and tension throughout. Borders, seams, fringe, color changes, shaping and a swatch kept separately need extra allowance.
THE TOOLKIT
Four small tools. One thoughtful project.
01
Gauge calculator
Measure a swatch, set your dimensions, and see the stitches and rows.
Open calculator02Evenly spaced shaping
Evenly distribute a row of increases or decreases without losing count.
Open calculator03Pattern repeats
Fit whole pattern repeats and two equal edges to a target width.
Open calculatorDoes this give metres or yards?
No. This tool estimates grams and whole balls using measured fabric weight. It does not infer yarn length without a measured or labeled length-to-weight relationship.
Is the estimate a purchase guarantee?
No. Fabric density, finishing and small weighing errors can change the result. Choose an allowance appropriate to your project and confirm dye-lot needs before buying.
Is the swatch weight added again?
No. The swatch provides the area-to-weight ratio. If you keep it separately, add its yarn to your allowance or purchase plan. Reusing the swatch may avoid that extra amount.