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Range & Channels

Point & Figure Box Size Calculator

Point & Figure charts move in fixed price boxes rather than time bars. Using a percentage of price (the modern approach, replacing the old fixed-dollar tables) keeps box size sensible across cheap and expensive instruments alike. Enter the price and a box percentage to get the box size and the standard 3-box reversal amount.

1% is a common default for stocks. Lower % gives finer detail, higher % filters more noise.

3-box reversal is the traditional standard. 1-box gives a more sensitive chart.

Box size ···
Reversal amount ···
Reversal as % of price ···

Educational tool only, not financial advice. Box size is a charting parameter, not a trading signal. Test different box sizes against your instrument's typical volatility before committing to one.

Jason Parker, founder of Trading Ranges

Built by Jason Parker, founder of Trading Ranges.

Jason Parker, founder of Trading Ranges

Built by Jason Parker, founder of Trading Ranges.