Free Vedic Birth Chart Online: 7 Accuracy Tests for Any Site (2026)
A clock that is one hour wrong changes your rising sign in half of all charts and moves every dasha date by about seven months. Seven two-minute tests for any free Vedic birth chart site, run on 10,000 births, and which sites pass them.
Supastro wrote this. Where another service does a job better, I say so. Competitor facts are from each site's own pages.
Every free birth chart site draws a neat diamond. Few tell you the four inputs that decide whether it is your chart or a stranger's: zodiac, ayanamsa, clock and map. I ran 10,000 random births through Supastro's engine and broke each input on purpose. The damage is brutal.
What's a good online Vedic astrology service for a free birth chart?
A good free Vedic birth chart service uses the sidereal zodiac with a named ayanamsa, applies the clock really in force on your birth date, places you at exact coordinates, draws the Navamsa and prints your dasha balance at birth. On those seven tests Supastro, Drik Panchang and Jagannatha Hora lead; AstroSage and Prokerala leave more for you to check.
| App | Best for | What it shows you | The catch |
|---|---|---|---|
| Supastro | A chart you can audit in one minute | Time zone used, latitude and longitude, Lahiri ayanamsa value, dasha balance at birth; D1, D9 and D10 | Lahiri only; North Indian style only; 3 new charts a day without an account |
| Drik Panchang | Every divisional chart and every chart style | Olson time zone and offset, editable latitude and longitude, D1 to D60 | Ads; dashas on a separate page |
| Jagannatha Hora | Students who want every setting | Six ayanamsas plus Western and custom, 23 divisional charts, many dasha systems | Free Windows download only; latest version dated 1 January 2016 |
| AstroSage | KP and other ayanamsas on the web | Latitude, longitude, time zone and a daylight saving box you set | The web form leaves daylight saving to you |
| Prokerala | A quick free kundli in five languages | A North Indian chart from its own place list | Ayanamsa and time-zone rules not stated on the form |
Ranked for one job: a chart you can verify. The full 12-app comparison by device is in [best free kundli apps and software](/blog/best-free-kundli-apps-software).
The seven tests, in two minutes
- Zodiac: enter any birth on 1 January. A Vedic chart puts the Sun in Dhanu (Sagittarius); it reaches Makar (Capricorn) only around 14 January, Makar Sankranti.
- Ayanamsa: the site names it. Lahiri (Chitrapaksha) is India's standard.
- Clock history: a Delhi birth in June 1943 should show UTC+6:30, India's wartime clock, not +5:30.
- Summer time: a London, New York or Sydney summer birth should move the offset by an hour on its own.
- Coordinates: the latitude and longitude used are printed, and they are your town's.
- Navamsa: the D9 chart is drawn, free.
- Dasha balance: it prints the dasha running at birth and what was left of it, in years, months and days.
Test 1: Is it really the Vedic zodiac?
Vedic astrology counts the signs from a fixed point among the stars; Western astrology counts from the spring equinox, which slides back about 50 seconds of arc a year. The gap is now about 24 degrees. Switch my 10,000 charts to the Western zodiac and the Sun sign changes in 79.2%; the Sun, Moon or rising sign in 99.1%. More in why your zodiac sign is mathematically wrong.
Test 2: Does it name its ayanamsa?
The ayanamsa is the exact size of that gap, and schools disagree on it. Lahiri is the value India's Calendar Reform Committee fixed in 1956, used by most Indian almanacs. B. V. Raman's is 1 degree 27 minutes smaller; Krishnamurti's (KP) is 6 minutes smaller. On Raman, the Navamsa rising sign changed in 43.5% of my charts and the birth star in 10.5%, and every one of that 10.5% starts life in a different dasha. KP moved 2.8%. No ayanamsa named, no way to know which chart you got.
Tests 3 and 4: Does it know what the clock said on your birth date?
Your chart is cast for one moment in world time, so the site must know your clock's offset on that exact date. India ran an hour ahead, at UTC+6:30, from October 1941 to 15 May 1942 and from September 1942 to 15 October 1945. Singapore kept UTC+7:30 until the end of 1981. Britain kept its clocks an hour ahead all year from 1968 to 1971. In my sample, 42.8% of births abroad, and 59.2% of London births, happened when the clock was off today's standard time.
One hour wrong and the damage is total: the rising sign changes in 49.6% of charts, the Navamsa rising sign in 100%, the quarter of the Moon's birth star (its pada) in 16.4%, and every dasha date moves by a median 229 days, about seven and a half months. That is "your career turns this spring" against "it turned last autumn". Our daylight saving guide covers births abroad.
Supastro, an AI Vedic astrology app built in Bengaluru by Quantum Karma, reads your zone from your birthplace's coordinates and applies the offset in force that day from the global time-zone database: no box to tick.
Test 5: Did it put you in the right place?
Your rising sign depends on where you were born, not only when, and many sites snap a small town to the nearest big city. Moving my births two degrees of longitude, about 200 kilometres east or west in India, changed the rising sign in 6.7% and the Navamsa rising sign in 59.5%. No coordinates printed, nothing to check.
Test 6: Does it draw your Navamsa?
The Navamsa, or D9, splits every sign into nine slices of 3 degrees 20 minutes. Parashara reads it for the spouse, and serious astrologers use it to test whether a planet can deliver what the birth chart promises. A free chart without it is half a chart, and it is the first thing to break, on errors too small to move your rising sign. Style is taste: North, South and East Indian layouts carry the same positions. See our Navamsa guide.
Test 7: Does it print your dasha balance at birth?
Your Vimshottari dashas, the planetary periods that time events, start from the Moon's exact place in its birth star. Parashara's rule: whatever share of the star the Moon has crossed, that share of the first period is spent at birth; the rest is your balance. Without it you cannot see the seven-month drift a wrong clock causes. The free dasha timeline goes three levels down.
How much does each website mistake change your chart?
| Website mistake | What changes | How often, in 10,000 births |
|---|---|---|
| Western (tropical) zodiac instead of Vedic | Sun, Moon or rising sign | 99.1% |
| Clock one hour wrong | Navamsa rising sign | 100% |
| Clock one hour wrong | Rising sign | 49.6% |
| Clock one hour wrong | Every dasha date | Moves a median 229 days |
| Birthplace about 200 km off | Navamsa rising sign | 59.5% |
| Raman ayanamsa instead of Lahiri | Navamsa rising sign | 43.5% |
| Raman ayanamsa instead of Lahiri | Birth star and first dasha | 10.5% |
| KP ayanamsa instead of Lahiri | Navamsa rising sign | 2.8% |
Method: 10,000 random births, 1950 to 2005, 69% in ten Indian cities and 31% in seven cities abroad, cast with Supastro's free-tool engine on Lahiri, then recast with one input broken at a time. Fixed seed.
Which free birth chart sites pass the seven tests?
| Test | Supastro | Drik Panchang | AstroSage | Prokerala | Jagannatha Hora |
|---|---|---|---|---|---|
| 1. Vedic zodiac | Yes (Vedic only) | Yes; Western on request | Yes; Western (Sayan) on request | Yes | Yes; Western on request |
| 2. Ayanamsa named | Lahiri, value printed | Lahiri, Raman, KP or none | Lahiri, three KP versions, Raman or Sayan | Not stated on the form | Six, plus a custom one |
| 3. Clock history | Automatic, from the global time-zone database | Asks for the Olson time zone, the same database | Time zone set in Advanced Settings | Not stated | Not stated |
| 4. Summer time abroad | Automatic | Olson rules | Manual box on the web form | Not stated | Not stated |
| 5. Coordinates | Printed on page one | Shown and editable | Editable | Not shown on the form | Atlas of 2.5 million places |
| 6. Navamsa | Yes, North Indian | Yes, four styles | North or South Indian; D9 in its free software | Yes, North, South or East Indian | Yes, four styles |
| 7. Dasha balance at birth | Printed | On a separate dasha page | In a free Vimshottari report | Not stated on the form | Yes, many dasha systems |
Where they beat us: Drik Panchang gives every divisional chart to the D60, four chart styles, editable coordinates and three choices besides Lahiri; Jagannatha Hora gives every setting there is; AstroSage runs KP, which we do not. Supastro wins where it counts for checking your own chart: it shows its working and gets the clock right without asking. To test an AI reading against it, use the ChatGPT fact-check.
Frequently asked questions
Is a free Vedic birth chart as accurate as a paid one?
Yes, if it passes the seven tests. Positions are astronomy; what you pay for is interpretation. Supastro's free kundli matched our full engine to within about one arc-minute on 200 real charts.
Which ayanamsa should I use for my Vedic birth chart?
Lahiri, unless you follow the KP system, which uses its own. Never compare charts cast on different ayanamsas: on Raman, one person in ten gets a different birth star.
Why is my Vedic Sun sign different from my Western one?
The two zodiacs start about 24 degrees apart. In my sample, 79.2% had a different Vedic Sun sign, always the sign before the Western one.
Do I need to turn on daylight saving for my birth chart?
Not on a site that applies the time-zone database itself, as Supastro does. On a manual daylight saving box, check whether summer time was in force on your birth date first: a wrong tick moves every dasha date by months.
What is the dasha balance at birth?
What was left of your first planetary period when you were born. If the Moon had crossed 40% of your birth star, 40% of that period was spent; the other 60% is your balance.
Is a North Indian or South Indian chart more accurate?
Neither. They draw the same positions: the North Indian diamond fixes the houses, the South Indian grid fixes the signs. Accuracy lives in the inputs, not the layout.
