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Calculator Collection

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Both calculators run independently β€” change the inputs on either side to compare results.

Sewing

Pattern Scaling Calculator

Compute scaled pattern dimensions when you need to enlarge or reduce a sewing pattern by a percentage. Useful for grading between sizes, copying patterns at non-standard scale, or fitting a pattern to non-standard body proportions.

Fill in the required fields to see your result.
Sewing

Pattern Grading Calculator

Calculates new pattern measurements when grading a sewing pattern up or down between sizes. Use it when resizing a commercial pattern to fit a different size without redrawing every piece from scratch.

Fill in the required fields to see your result.

Key differences

Pattern Scaling CalculatorPattern Grading Calculator
CategorySewingSewing
Inputs required24
ResultNew Pattern Dimension (inches)Adjusted Measurement (inches)
What it doesCompute scaled pattern dimensions when you need to enlarge or reduce a sewing pattern by a percentage. Useful for grading between sizes, copying patterns at non-standard scale, or fitting a pattern to non-standard body proportions.Calculates new pattern measurements when grading a sewing pattern up or down between sizes. Use it when resizing a commercial pattern to fit a different size without redrawing every piece from scratch.