Square of 9 Calculator for NSE Stocks & Indices Square of 9Most Square of 9 calculators make you type in a price. This one does not. Pick a stock and a date and it reads that session's own open, high, low and close from our stored NSE history, then builds the whole wheel around it — support and resistance at the angle you choose, the buy above and sell below triggers with their targets and stop loss, the cardinal and ordinal crosses, and forward time turns. Then it does the part nobody else does: it replays the same levels over up to two years of past sessions and shows you how close they actually came to the next day's high and low.
Every trade
What do these words mean?
- Square of 9
- A spiral of numbers wound around 1. Walk one full turn of it and the square root of the number you land on has gone up by exactly 2. Every level this tool prints is that one fact applied at a smaller angle.
- Angle step
- How much of a turn each rung of the ladder is worth. 22.5° is the classic intraday setting — a rung roughly every 0.2% at Nifty levels. 45° suits swing trades, 90° positional.
- Cardinal and ordinal
- The four straight arms of the wheel (0, 90, 180, 270°) are the cardinal cross — traditionally the strongest levels. The four diagonals (45, 135, 225, 315°) are the ordinal cross, next in strength. Anything finer is a minor division.
- Buy above / Sell below
- Price sits between two rungs of the wheel. Close above the rung overhead and the wheel says you are in an up-swing; below the rung underneath, a down-swing. Each trigger uses the other one as its stop.
- Wheel degree
- Where a price stands on the full 360° circle, measured from the axis the odd squares sit on (1, 9, 25, 49 …). A price landing near 0, 90, 180 or 270° is sitting on a cardinal arm.
- Solar degree / time turn
- The rim of the wheel is a calendar, zeroed at the spring equinox around 21 March. A "90° time turn" is the date the Sun has moved a quarter-circle on from your chosen date — near, but not identical to, 90 calendar days later.
- Squaring price with time
- The idea that a move completes when the amount of time travelled matches the price travelled. The natural count is the square root of the price — how many full steps of the spiral it stands from the centre.
- Touched %
- Out of every session in the test window, how often the next session's high-low range covered that rung. Read it next to the average daily range: a rung touched 80% of the time is not impressive if the range routinely spans six rungs.
- Miss on the high / low
- The gap between the next session's actual high (or low) and the nearest rung of the wheel, as a % of price. This is the honest measure — it says whether the wheel marked the turn or merely sat somewhere near it.
How to use the Square of 9
- Pick a stock or indexChoose any NSE symbol we hold price history for. Type in the search box to filter the list.
- Pick a dateAny past trading day. Land on a weekend or a holiday and the tool steps back to the last real session and tells you it did.
- Choose the price to build fromClose by default. You can also build from the open, high, low, the typical price, or the previous session's close.
- Choose the angle step22.5 degrees is the classic intraday setting. Use 45 degrees for swing trades and 90 degrees for positional.
- Read the levelsYou get the buy above and sell below triggers with targets and stop loss, the full support and resistance ladder, the wheel drawn out, forward time turns, and hit rates from the back-test.
Frequently asked questions
What is the Square of 9 and how does the calculator work?
The Square of 9 is a spiral of numbers wound around 1, from the classic 1930s market-geometry work. Walking one full turn of the spiral raises the square root of the number by exactly 2, so every angle on the wheel is a fraction of that: a level is (square root of price + degrees divided by 180), squared. Levels are snapped to the wheel's own lattice, which is why this calculator reproduces the classic published examples exactly.
Do I have to enter the LTP myself?
No, and that is the main difference from other calculators. You choose a stock and a date and the tool reads that session's real open, high, low and close from our stored NSE data. Nothing is typed by hand, so there is no chance of feeding it a stale or mistyped price.
Which angle should I use for intraday trading?
22.5 degrees is the classic intraday setting — it puts a rung roughly every 0.2 to 0.5 percent depending on the price. 45 degrees suits swing trades and 90 degrees, the cardinal cross alone, suits positional work. The tool tells you what one rung is worth in percentage terms at your chosen price.
How accurate are Square of 9 levels?
The tool answers that with numbers instead of claims. It replays the same levels over up to two years of past sessions, scores each against the session that followed, and reports how often each level was traded through and how far the nearest level finished from the actual high and low. Read those against the average daily range shown beside them.
What is the difference between the cardinal and ordinal cross?
The cardinal cross is the four straight arms of the wheel at 0, 90, 180 and 270 degrees — traditionally treated as the strongest levels. The ordinal cross is the four diagonals at 45, 135, 225 and 315 degrees, next in strength. The tool labels every level so you can see which cross it falls on.
Can I use it on Nifty and Bank Nifty?
Yes, on any NSE stock or index we hold daily price history for, including the major indices. The stock list is searchable.
What does it cost to use?
Creating an account costs nothing, and a new account comes with a pool of tool runs shared across the tools; referring another trader adds more. Some tools carry their own price, which is shown on the tool card and again before any payment.