Concept · Illustrated

Shadbala Explained — How Planetary Strength Is Measured in Vedic Astrology

A planet can be beautifully placed and still underdeliver — or look weak and still come through. Shadbala is the system that measures what a placement alone can't: raw planetary strength.

Two charts can have Jupiter in the same sign and house, yet it blesses one life and barely registers in the other. The missing variable is strength. A planet's position tells you what it can do; its strength tells you how much power it actually has to do it. Vedic astrology measures that strength with one of its most rigorous tools: Shadbala.

What Shadbala is

Shadbala means "six strengths" (shad = six, bala = strength). It is a quantitative system that scores a planet's total power by adding up six independent sources of strength, each measured in points called shashtiamsas and totalled into rupas (1 rupa = 60 points). It is calculated for the seven classical planets (the Sun through Saturn).

Shadbala — “six-fold strength” — totals six independent measures of a planet’s power into a single score (in rupas). A planet that clears its required strength delivers its results; one that falls short underperforms, however well placed it looks.

The six balas

1. Sthana Bala — positional strength

Strength from where the planet sits: its exaltation or debilitation, its dignity across several divisional charts, whether it's in an odd/even sign as it prefers, its house, and its position within the sign. A planet near its exaltation point scores high here.

2. Dig Bala — directional strength

Strength from being in the right house for its nature. Jupiter and Mercury are strong in the 1st (east), the Moon and Venus in the 4th (north), Saturn in the 7th (west), and the Sun and Mars in the 10th (south). A planet in its favoured direction gains real power.

3. Kala Bala — temporal strength

Strength from time: whether it's day or night (and whether the planet prefers it), the lunar phase (paksha), the weekday, month and year lords, the hour, and the planet's declination. This is the most intricate of the six.

4. Cheshta Bala — motional strength

Strength from motion. A planet moving swiftly, slowly, stationary or retrograde scores differently — retrograde planets actually gain Cheshta bala, one reason a retrograde planet is considered strong, not weak.

5. Naisargika Bala — natural strength

The planet's inherent, fixed strength, the same in every chart. The order, from strongest to weakest, is: Sun, Moon, Venus, Jupiter, Mercury, Mars, Saturn. The Sun is naturally the most powerful; Saturn the least.

6. Drik Bala — aspectual strength

Strength from aspects: benefic aspects add strength, malefic aspects subtract it. A planet bathed in Jupiter's aspect gains; one hemmed in by malefic aspects loses.

How the score is read

The six balas are added into a total, converted to rupas, and compared against the minimum strength each planet is expected to have:

| Planet | Required (rupas) | |---|---| | Mercury | 7.0 | | Sun, Jupiter | 6.5 | | Moon | 6.0 | | Venus | 5.5 | | Mars, Saturn | 5.0 |

A planet whose total exceeds its requirement is strong enough to deliver its promised results; one that falls short underperforms, even from a good placement. The ratio of actual to required strength lets you rank all seven planets and see, at a glance, which are your power-houses and which need support.

Why Shadbala matters

Shadbala settles a question that placement alone can't: will this planet actually deliver? It explains why a textbook-perfect yoga sometimes disappoints (the planets forming it are weak) and why a modest-looking chart can overperform (its key planets are strong). It's especially useful for:

Judging which planet is strongest — often a good guide to where life flows most easily.
Spotting a weak but important planet that needs strengthening or remedies.
Adding rigour to predictions, alongside dignity, dashas and transits.

This site computes the full Shadbala (B. V. Raman's variant) for all seven planets, broken down by each of the six balas.

See your planets' strength

Cast your free chart below and open the Ṣaḍbala tab to see each planet's six-fold strength, its total in rupas, and how it measures against the required minimum — a clear map of which planets carry power in your chart.

FAQ

What is Shadbala in Vedic astrology?

Shadbala ("six strengths") is a system for measuring a planet's total strength by combining six independent sources — positional, directional, temporal, motional, natural and aspectual strength — into a score in rupas. It reveals how much power a planet actually has to deliver its results.

What are the six sources of Shadbala?

They are Sthana bala (positional), Dig bala (directional), Kala bala (temporal), Cheshta bala (motional), Naisargika bala (natural/inherent) and Drik bala (aspectual). Their sum, in rupas, is compared to the strength each planet is required to have.

Does a retrograde planet gain strength in Shadbala?

Yes. Retrograde motion adds Cheshta bala (motional strength), which is one reason Vedic astrology treats a retrograde planet as strong rather than weak — quite different from how retrogrades are often viewed in Western astrology.

Which planet is naturally the strongest?

By Naisargika (natural) bala, the fixed order from strongest to weakest is Sun, Moon, Venus, Jupiter, Mercury, Mars, Saturn. But this is only one of six components — a naturally weaker planet can still be very strong overall through the other five balas.