200m - Roll Length Calculator

madmk

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About this app

[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!

What’s new

This is the first version of the 200m app. Measure roll lengths easily and quickly with just a single photo. Experience smart automatic detection.