Pattern Scaling Calculator
Scale a pattern measurement from an original and a target, or from a print percentage.
Calculator
Calculated in your browser. These measurements are not sent to the server.
Result
- Scale
- 1.5
- Print percentage
- 150%
- Scaled dimension
- 12 in (30.48 cm)
Scale is target divided by original, or the percent you enter divided by 100.
Every extra dimension is multiplied by that same scale. Nothing is graded with a different amount.
Print percentage is the scale expressed as a percent.
Scaled size
InputScale
Result1.5
InputPrint percentage
Result150%
InputScaled dimension
Result12 in (30.48 cm)
| Input | Result |
|---|---|
| Scale | 1.5 |
| Print percentage | 150% |
| Scaled dimension | 12 in (30.48 cm) |
How this calculation works
Measurement mode divides the target by the original. A 10 in original and a 15 in target produce a scale of 1.5.
Percent mode divides the percent by 100. Every extra dimension is multiplied by that same scale.
Print percentage is the scale times 100.
Worked example
Scale 10 in to 15 in and apply it to an 8 in detail
Scale = 15 ÷ 10 = 1.5.
Print percentage = 150%.
The 8 in detail becomes 12 in.
Assumptions and limitations
- One scale applies to every dimension you list.
- The calculator does not grade different amounts for length and width.
- Nested pattern pieces, seam-allowance-only scaling, and size-chart grading are not included.
Common questions
Is print percentage the same as the scale?
Print percentage is the scale written as a percent. A scale of 1.5 is 150% at the printer.
Can I scale several measurements at once?
Yes. Add extra dimensions. Each one is multiplied by the same scale.