Features & Capabilities

Convert Japanese tatami (帖) measurements across 9 regional standards — Kyo-ma, Edo-ma, Danchi and more — to m² and ft² with mathematically exact constants.

Japanese rooms are measured in tatami mats (帖) — but not all tatami are the same size. yConverter converts between 9 regional standards with unrounded Shakkan-hō constants, so architects, real estate buyers, and Japan enthusiasts get exact results.

Features:

  • 9 regional standards
    • Kyo-ma (京間)
    • Chukyo-ma (中京間)
    • Edo-ma (江戸間)
    • Rokuichi-ma (六一間)
    • Ryūkyū-tatami (琉球畳, 3 variants)
    • Danchi-ma (団地間, 2 variants)
  • Mathematically exact conversions using unrounded Shakkan-hō constants
  • Formula input — type expressions like directly into any field
  • Bidirectional real-time conversion — update any field and all others recalculate instantly
  • Live formula preview while typing
  • Educational content explaining the mathematics behind each regional standard
  • Dark mode support

User Growth & Download Statistics

App
By:
Yohann SORONELLAS
Version:
1.0.0 Last updated: 2026-03-12
Version code:
883142949
Creation date:
2026-03-12
Compatible devices:
Size:
9.09MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-07
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Yohann SORONELLAS
Apple Apps Store
https://apps.apple.com/my/app/yconverter/id6760248292
Website:
https://github.com/YohannSoronellas/yConverter

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