Your Adjustment Plan
Every adjustment you need, in the right order, with the right values — accounting for how they interact. An FBA changes the waist. Shoulders affect the armhole. We compute the net effect of everything together.
Why adjustments interact
Pattern adjustments are not independent. When you add width at the bust (FBA), you also add width at the waist — about half the bust spread propagates down. If you were also planning to take in the waist, the FBA has already done part of that work.
Similarly, changing the shoulder width shifts the armhole, which changes how much ease the sleeve cap needs. Shortening the back bodice changes where the waist seam falls, which affects any swayback adjustment.
This plan computes all adjustments simultaneously and propagates their side effects through the dependency chain, so the values you see already account for these interactions.
How to use this plan
Work through the adjustments in the order shown — they're sorted by dependency. The first adjustment has no prerequisites. Each subsequent one builds on the changes made before it.
Click "Open tool" on any adjustment to go to the individual calculator with more detail and step-by-step diagrams. Or click "Apply all to a pattern PDF" to walk through them in the guided workflow.
Always make a muslin. This plan is computed from standard pattern assumptions. The interaction math is well-defined, but the real test is on your body in your fabric.