Grading Rule Calculator
Calculate size grade rules from body measurement standards for pattern grading between sizes.
Inputs
in
in
in
Results
Target Bust
38 in
Target Waist30 in
Target Hip40.5 in
Grade Steps3
Shoulder Grade0.75 in
Armhole Grade1.13 in
Neck Grade0.75 in
Length Grade0.75 in
Bust Half Grade1.5 in
Waist Half Grade1.5
Hip Half Grade1.5
How to Use This Calculator
- Select your base pattern size from the size drop-down.
- Enter the target size you need to grade up or down to.
- Select garment category (bodice, skirt, sleeve, or pants) for the correct grading increments.
- Review the grade amounts for each pattern point in the X and Y directions.
- Apply the grading increments to each pattern point using a grading ruler or CAD system.
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