200m - Roll Length Calculator

[Calculate complex roll lengths with just a photo!] '200m' is a smart measurement solution that accurately calculates the remaining length of any rolled materials such as tape, film, paper, or wire from a single photo. It automatically detects the inner and outer diameters of the roll to provide the total length instantly. Key Features: • AI Auto Detection: Automatically traces the roll shape when you take or load a photo. • Precision Tuning: Fine-tune the detection using the sensitivity slider for perfect accuracy. • Custom Input: Enter the actual inner diameter (mm) and thickness (mm) for precise results. • Presets & History: Save frequently used specs and share your measurement history. • Multi-language Support: Supports English, Korean, Chinese, Vietnamese, and German. Recommended For: • Anyone doing inventory on roll products (tape, fabric, wire, etc.). • Workers needing to check the length of remaining film or paper. • Those who want results in 3 seconds without complex formulas. ※ Shoot vertically (90°) in bright lighting for the best accuracy. Save time with '200m' today!