Observed arrival · 2026-11-03
Area and Home Calculations
A Japanese-language hub of calculators and explainers for home area, housing costs, taxes, renting, and DIY materials.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Japanese renters, homebuyers, and DIY renovators
- Worth noticing
- The site says figures entered into its calculators stay in the browser and are not sent anywhere.
Field notes
The category structure spans measurement, buying or building, taxes and investment, renting, and renovation or DIY. Examples include converting traditional Japanese area units, estimating a rental's initial costs, and calculating wallpaper or paint quantities from room dimensions. The homepage also presents explainers and case studies, including comparisons between different tatami standards and coverage of property-tax relief.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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