Finished Size Calculator
Estimate dimensions from counts and gauge.
Finished Size Calculator: Quick Calculation
How Finished Size Calculator Works?
The Finished Size Calculator works by dividing your Cast-On Stitches by your gauge to give the Estimated Width. The same idea divides rows by row gauge for the height.
Count your stitches
Enter the cast-on or current stitch count on the main display.
Enter your gauge
Type the stitches in 4 in (10 cm) into the calculator.
Read the width
Divide the stitches by stitches per inch for the width.
Add the height
Divide rows worked by rows per inch for the height.
Finished Size Calculator Formula
The Finished Size Calculator formula is width = stitches ÷ stitches per inch and height = rows ÷ rows per inch.
- Width
W = S ÷ gS is the stitches and g is stitches per inch.
- Height
H = R ÷ rR is rows and r is rows per inch.
- Blocked size
Blocked ≈ unblocked × (1 + growth)Wool grows 5 to 10%; lace grows 20 to 40%.
Worked example: A blanket of 200 stitches and 300 rows at 4.5 stitches and 6 rows per inch measures about 200 ÷ 4.5 = 44.4 in (112.9 cm) wide and 300 ÷ 6 = 50 in (127 cm) long.
Finished Size Calculator Conversion Table
The Finished Size Calculator conversion table gives finished width for 7 stitch counts at 4 gauges.
| Stitches | 3.5 sts/in | 4.5 sts/in | 5.5 sts/in | 7 sts/in |
|---|---|---|---|---|
| 40 | 11.4 in (29 cm) | 8.9 in (22.6 cm) | 7.3 in (18.5 cm) | 5.7 in (14.5 cm) |
| 60 | 17.1 in (43.5 cm) | 13.3 in (33.9 cm) | 10.9 in (27.7 cm) | 8.6 in (21.8 cm) |
| 90 | 25.7 in (65.3 cm) | 20 in (50.8 cm) | 16.4 in (41.6 cm) | 12.9 in (32.7 cm) |
| 120 | 34.3 in (87.1 cm) | 26.7 in (67.7 cm) | 21.8 in (55.4 cm) | 17.1 in (43.5 cm) |
| 160 | 45.7 in (116.1 cm) | 35.6 in (90.3 cm) | 29.1 in (73.9 cm) | 22.9 in (58.1 cm) |
| 200 | 57.1 in (145.1 cm) | 44.4 in (112.9 cm) | 36.4 in (92.4 cm) | 28.6 in (72.6 cm) |
| 250 | 71.4 in (181.4 cm) | 55.6 in (141.1 cm) | 45.5 in (115.5 cm) | 35.7 in (90.7 cm) |
Sizes are before blocking.
What is Finished Size Calculator?
A Finished Size Calculator is a tool that predicts the width and height of a piece from its stitch and row counts and your gauge. The prediction tells you if the piece will fit before you finish it.
Checking size early saves a full rip-back. The Stitches Counter calculator works from the counts you already track.
What are the uses of Finished Size Calculator?
There are 4 main uses of the Finished Size Calculator, including fit checks, blanket planning and pattern changes.
Fit checks
Check a sweater's width before the armholes.
Blanket planning
Predict blanket size from cast-on and rows.
Pattern changes
See the size effect of adding stitches.
Yarn substitution
Predict size with a new gauge.
About the Finished Size Calculator
Forecast the finished blocked dimensions of your project from your active stitch and row count and swatch density.
How to Use This Tool Efficiently
- ✓Prevents surprise sizing issues before investing 50 hours of crafting.
- ✓Check measurements at the halfway mark to confirm blocking expectations.
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