Sweater Ease Calculator
Turn your chest measurement and desired fit into the size to knit.
Knit the size that finishes at 101 cm
That is 101 cm / 39.8 in around, using +5 cm of ease. Patterns are sized by finished measurement, not your body.
How to use
- Measure around the fullest part of your chest or bust and enter it, in centimetres or inches.
- Choose the fit you want — from very fitted (negative ease) to oversized.
- Read the finished measurement to knit: your body measurement plus the ease for that fit. Pick the pattern size closest to it.
- Add your stitch gauge to also get the full-circumference cast-on stitches.
Good to know
- Patterns are sized by finished garment measurement, not your body — this is the number-one sizing mistake. Knit the size whose finished chest matches the result here.
- Ease is personal: negative ease clings, a few inches of positive ease is a classic everyday fit, more is relaxed or oversized. The presets follow common Craft Yarn Council bands.
- The cast-on is a starting point for a plain sweater — ribbing, stitch patterns and shaping may adjust it.
FAQ
- What is ease?
- Ease is the difference between the finished garment and your body measurement. Positive ease is roomier than you, zero ease matches you, negative ease is smaller and stretches to fit.
- Why not just knit my exact chest size?
- Because a pattern’s size IS the finished measurement. If your chest is 96 cm and you want a classic fit, you knit the size that finishes around 101 cm — not the size labelled 96.
- How much ease should I choose?
- For an everyday pullover, 5–10 cm (2–4 in) of positive ease is a safe classic fit. Fitted garments use zero or slightly negative ease; oversized uses 15 cm (6 in) or more.