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Smart Chastity Cage Size Calculator

Chastity Cage Size Calculator

At SMBSM shop, Finding the right chastity cage size is essential for hygiene, security, and long-term comfort. Use our bio-metric calculator to find your perfect fit based on your unique anatomy.

inch

Measure the underside from the glans tip to the base while fully relaxed.

inch

Measure the circumference at the base of the penis, behind the scrotum.

Recommended Cage Length

Calculated with a 15% safety margin to ensure zero-gap security.

Recommended Ring Diameter

Formula: (Girth / π) × 0.95 for optimal bio-metric security.

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© 2026 SMBSM | Professional Sizing Protocol | Expert-Verified Measurements.