How Our Vastu Score Works: Rules & Weights

No black box. This page lists every rule and weight used by the Vastu Checker and the floor plan analyzer, so you can see exactly where each point comes from — and disagree with us if your tradition differs.

The formula

Each item you enter (a room or feature in a zone) receives points by rating:

Ideal = 100 points
Good = 75 points
Neutral = 45 points
Avoid = 0 points

Each item type has an importance weight. The score is the weighted average over only the items you entered:
score = Σ(weight × points) ÷ Σ(weight)

If you have several rooms of one type (for example three toilets), their points are averaged into one line, so a home with many toilets isn’t over-penalised. The checker also shows coverage — what share of the full checklist weight (122) your answers represent — because a score based on two rooms says less than one based on twelve.

Bands

85–100: Strong alignment
70–84: Good alignment
50–69: Mixed alignment
0–49: Needs attention

The rule table

I = Ideal, G = Good, N = Neutral, A = Avoid, — = not applicable. Zones are the 8 directions (45° each) plus the centre (Brahmasthan).

Item	Weight	N	NE	E	SE	S	SW	W	NW	C
Main door facing	8	I	I	I	N	N	A	G	G	—
Main entrance	15	I	I	I	N	N	A	G	G	—
Kitchen	14	A	A	N	I	N	A	N	G	A
Master bedroom	14	N	A	N	A	G	I	G	N	A
Children’s / guest bedroom	6	G	A	G	A	G	N	I	I	A
Toilet / bathroom	12	N	A	N	N	G	A	I	I	A
Pooja / prayer room	10	G	I	I	A	A	A	N	N	G
Living room	6	I	I	I	N	N	N	G	G	G
Study / work area	6	I	G	I	N	N	G	G	N	N
Staircase	7	A	A	N	G	I	I	I	G	A
Balcony / open area	4	I	I	I	N	N	A	N	G	—
Dining area	3	G	N	G	N	N	N	I	G	N
Store room / heavy storage	3	N	A	N	N	G	I	G	G	A
Overhead water tank	4	N	A	N	A	G	I	G	N	A
Underground tank / borewell	4	I	I	G	A	A	A	N	N	A
Septic tank	4	N	A	N	N	N	A	G	I	A
Car parking / garage	2	N	A	N	G	N	A	N	I	A

Where the rules come from

Vastu has many schools and texts, and they disagree on details. We rate a placement Ideal or Avoid only where it is consistently stated across mainstream Vastu literature and widely published guidance (for example, kitchen in the south-east, toilet not in the north-east). Where sources conflict, we use Neutral rather than pick a side. Entrance padas follow the reading of Brihat Samhita ch. 53, vv. 72–75. The 16-zone associations reflect common contemporary practice and are shown for information; they do not change the score.

How zones are determined

Compass: the bearing from the centre of the home to the room, rounded to the nearest of 8 directions (each 45° wide).
Floor plan, radial overlays: the same, measured from the outline’s centroid; a point inside the central ninth of the north-aligned bounding box counts as the centre.
Floor plan, 3×3 grid: the grid cell of the north-aligned bounding box.
Entrance pada: the door’s position along the nearest wall, divided into eighths.

Compass maths

Phone headings come from the browser’s DeviceOrientation API (iOS: webkitCompassHeading; Android: absolute orientation). Both report magnetic north. We add magnetic declination computed on your device from the NOAA/BGS World Magnetic Model 2025 (valid 2025–2029; our implementation matches NOAA’s official calculator to within 0.0001°). Stability is the circular standard deviation of the last ~45 raw readings.

Limits — please read

Vastu is a traditional belief system. A score describes agreement with traditional placements; it does not predict health, wealth, relationships or any other outcome.
A score depends entirely on correct inputs — especially accurate north.
Weights are our editorial judgement of relative importance, informed by how much emphasis texts give each element. Reasonable practitioners may weight things differently.
Nothing here is structural, legal, medical or financial advice.

Last reviewed: 2026-10-08. Spotted something you think is wrong? Tell us.

How our Vastu score works