One ring, every degree
Every rule of placement in the classical Vastu tradition ultimately lands on the ring of 360 degrees around the centre of a home. This tool is that ring made usable: enter any bearing from 0 to 359.9 and it returns the direction, the 22.5° zone, and the position of the bearing within its sector — near the centre line, or close to a boundary.
Precision over guesswork
Much of what passes for a Vastu doubt is really a measurement doubt. A door described as "north-facing" may in fact sit at 25°, inside the next sector. The ring settles such questions numerically. Because the calculator quotes the practice's source records with its results, you also see the classical lines that stand behind the sector you have landed in, exactly as recorded.
How to use this tool
Take the bearing of the thing you care about — a door, a window, the line from the house centre to the gate — and enter it. Read the sector, note how deep inside the sector the bearing sits, and treat anything within a degree or two of a boundary as worth re-measuring. The ring works for as many bearings as you like; check them one by one.
FAQ
Q. Can I enter decimals? Yes; the ring accepts fractional degrees, which matter near boundaries.
Q. What does "distance from the centre line" tell me? How firmly the bearing belongs to its sector. Deep readings are stable; edge readings deserve care.
Q. Is this tool only for doors? No — any line from the centre of the home has a bearing: gates, windows, the kitchen stove, a borewell.
The classical basis appears with each calculation result, quoted from the practice's source records.