Skip to main content
Calcimator

Princess Seam Calculator

Calculate princess seam placement from bust point and desired fit for bodice pattern construction.

Inputs

in
in
in
in
in

Results

Seam Placement from CF

7.5 in

≈ 2 credit cards

Front Panel (bust)7.5 in
Side Panel (bust)10.5 in
Front Panel (waist)5.9 in
Side Panel (waist)8.1 in
Seam Length (est.)18 in
Front Cut Width8.75 in
Side Cut Width11.75 in
How to Use This Calculator
  1. Enter bust and waist circumferences from your body or dress form measurements.
  2. Set the bust point distance from center front and bust point height.
  3. Enter your preferred seam allowance width.
  4. Review side panel width at bust and waist, and the seam lengths for each panel.
  5. Use these dimensions to draft or adjust princess seam panel pieces on your pattern.

How the result changes with Bust Point from CF

Bust Point from CFSeam Placement from CF
3.93.9 in
6.156.15 in
8.858.85 in
1111 in

What each input means

Bust Circumference
Full bust circumference measurement
Waist Circumference
Natural waist circumference measurement
Bust Point from CF
Distance from center front to bust point
Bust Point Height
Shoulder to bust point measurement
Seam Allowance
Seam allowance width

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Bust Circumference = 36, Waist Circumference = 28, Bust Point from CF = 7.5, Bust Point Height = 10 = 5 input(s) provided
  2. Calculate Seam Placement from CF
    Seam Placement from CF
    7.5 = 7.5
  3. Calculate Front Panel
    Front Panel
    7.5 = 7.5
  4. Calculate Side Panel
    Side Panel
    10.5 = 10.5

Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.

Related Calculators

The questions that sit next to this one — chosen by subject, including calculators filed under a different category.

Pattern Making

Ease Distribution Calculator

Calculate ease allocation across bust, waist, and hip for different fit types in garment construction.

Pattern Making

Dart Manipulation Calculator

Calculate dart rotation and distribution for pattern adjustments including angle, width, and depth per dart.

Pattern Making

Buttonhole Spacing Calculator

Calculate even button and buttonhole placement from garment length, button count, and offsets.

More in Crafts, Hobbies & Games.