Piercing Tools & Calculators
Free, practical calculators for body piercing — gauge conversion, jewelry sizing, healing-time estimates, safe gauge stretching, aftercare scheduling, and ring diameters. Educational tools for planning and caring for a piercing; the aftercare and healing tools are informational and are not medical advice.
Gauge Size Converter
Convert a piercing gauge to millimetres and inches and back — read the exact wire thickness behind 20g through 00g, and find the nearest gauge for any measured jewelry
Jewelry Size Calculator
Turn a measured post length or tissue depth into a recommended barbell or labret size, with a healing swelling allowance for fresh piercings and a snug fit once healed
Piercing Healing Time Estimator
Look up the typical healing range for a placement — earlobe to cartilage, navel to nipple — plus how long to keep up aftercare and when a downsize is usually due
Gauge Stretching Planner
Plan a safe stretch from your current gauge to a target size, one step at a time, with the recommended wait between sizes and the earliest week you should reach each one
Aftercare Schedule Builder
Enter your piercing date and type to get a saline-and-cleaning timeline — soak cadence, when to ease off, a likely downsizing week, and an estimated fully-healed date
Ring Diameter Calculator
Work out a captive or seamless ring's internal diameter, circumference, and a comfortable fit from a wearable measurement — in millimetres and inches, both ways