Measuring Guide
Use a flexible, unstretched measuring tape. Measure consistently over the garments or undergarments appropriate to your project, and record whether you are using inches, centimeters, or millimeters.
Keep the tape level for circumference measurements and avoid pulling it tight. Ask another person to help with measurements that are difficult to take accurately alone.
Each released pattern will define its required measurement points. Follow those instructions rather than substituting a ready-to-wear size label.