In Vedic astrology, marriage is read chiefly from the 7th house (the spouse and partnership) and its lord, together with Venus, the natural significator (Kalatra karaka) of marriage and love. Strain or separation is judged from the separative houses — the 6th (disputes and legal friction), the 8th (obstacles and upheaval) and the 12th (distance and the marital bed) — and from malefics such as Saturn, Mars, Rahu, Ketu and the Sun touching the marriage points. This tool casts your birth chart (Lahiri sidereal, whole-sign houses) and weighs all of these into a transparent 0–100 separation-possibility meter.
The meter rises when malefics sit in or aspect the 7th house, when they join or afflict Venus, when the 7th lord is weak or falls into a separative house, with Mangal (Kuja) Dosha, with a 6th–7th house link, or with difficult combinations like Venus with Saturn, Rahu or Ketu. It falls when benefics like Jupiter protect the 7th house or Venus, or when the 7th lord and Venus are strong (exalted or in their own sign). Every contributing signal — both strain and stabilising factors — is listed so nothing is hidden.
The heart of this calculator is timing. Using your Vimshottari Dasha (based on the Moon's nakshatra) it highlights the ongoing and upcoming Mahadasha–Antardasha windows ruled by the marriage-strain significators — the 7th and 6th lords, Venus and the malefics touching them — so you can see the periods that traditionally ask for extra patience, communication and care. It also suggests supportive remedies. This is a traditional-astrology reflection offered for self-awareness only; it is not a prediction that a divorce will happen, and it is not relationship, counselling or legal advice. Every marriage can grow with love and effort.