Lu Ban Ruler compares clear-opening, Yang-dwelling and Ding Lan rulers for a measurement. When a size lands in an inauspicious segment, it shows the millimeters to add or subtract to reach the nearest auspicious one.
Editor note
Best for
Builders and homeowners checking Luban dimensions.
Overview
Lu Ban Ruler compares clear-opening, Yang-dwelling and Ding Lan rulers for a measurement. When a size lands in an inauspicious segment, it shows the millimeters to add or subtract to reach the nearest auspicious one.
Compare 52.2, 42.9 and 38.8-centimeter ruler cycles simultaneously. Drag, type or adjust by one millimeter, with haptic alerts at inauspicious segments.
Segment meanings are available in Chinese, Vietnamese and English, entirely offline without an account.
People exploring Indian numerology or Vedic matching who want to try short calculations before ordering a report.
People who want a room-specific feng shui layout checklist and practical changes for a small bedroom or rental.
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