How to Measure a Price Target From a Chart Pattern (and Why It's Only an Estimate)

Technical analysis offers a conventional way to estimate how far price might move after a pattern resolves: the measured move. The idea is simple — the size of something in the pattern is projected from the breakout point. This article walks through the arithmetic, with the strong caveat that it produces a reference point, not a forecast.

The Core Idea

A pattern represents a battle between buyers and sellers over some range of prices. The measured-move convention assumes the move after the breakout will be roughly proportional to the size of the pattern itself. You measure a distance inside the pattern, then add it to (or subtract it from) the breakout level.

Which distance gets measured depends on the pattern.

The Arithmetic by Pattern

Flag or pennant — measure the pole. Take the length of the flagpole (from where it started to where it peaked) and project it from the breakout. Example: pole runs from $40 to $50 (height $10). The flag breaks out at $48. Projected target = $48 + $10 = $58. See flags and pennants.

Head and shoulders — measure head to neckline. Take the vertical distance from the top of the head down to the neckline and subtract it from the neckline break (for a top; add it for an inverse pattern). Example: head at $60, neckline at $50 (height $10), break at $50. Target = $50 − $10 = $40. See head and shoulders.

Double top or bottom — measure peak to trough. Take the distance from the peaks to the trough between them, and project it from the confirmation level. Example: double top at $50, middle trough at $44 (height $6), break at $44. Target = $44 − $6 = $38. See double tops and bottoms.

Triangle — measure the widest part. Take the height of the triangle at its widest point (usually the start) and project it from the breakout. Example: triangle is $8 tall at the left edge, breakout at $52. Target = $52 + $8 = $60 (upward break). See triangles.

Cup and handle — measure the depth of the cup. Take the distance from the rim down to the bottom of the cup and add it to the breakout above the rim. Example: rim at $50, cup bottom at $38 (depth $12), breakout at $50. Target = $50 + $12 = $62. See cup and handle.

Wedge — measure the widest part. Same as a triangle: the height at the widest part of the wedge, projected from the breakout. See wedges.

The pattern: find the biggest meaningful vertical distance in the formation and project it.

Percentage vs. Dollar Measurement

The examples above use dollar distances. On long patterns or large price changes, some prefer to measure in percentages (for instance, projecting a 20% cup depth as a 20% move above the rim). The two methods can give noticeably different answers, particularly on a logarithmic vs. linear scale. Neither is standard.

Why This Is Only an Estimate

Be clear about what a measured-move target actually is:

• It's a convention, not a derived result. No mechanism guarantees that price will travel the measured distance. Targets are rules of thumb that traders agree on.
• Pattern definitions are subjective. Where you draw the neckline, trendline, or rim determines the measurement. Move the line and the target moves.
• Many breakouts never reach the target. Price may stall, reverse, or fail outright. See false breakouts.
• Some blow past it. A target isn't a ceiling.
• Published "hit rates" are hard to evaluate. For reasons discussed in do chart patterns actually work, claims about how often targets are reached rarely come with transparent methods.
• It ignores everything outside the chart. Earnings, news, interest rates, and market conditions aren't in the arithmetic.

How It's Used in Practice

Because a target is a reference rather than a prediction, many traders use it for planning rather than forecasting:

• Comparing potential reward to the distance to an invalidation level. If a pattern's measured target is $8 above entry and the invalidation level is $2 below, the ratio is 4:1. That ratio is a way of framing risk, not a promise.
• Deciding whether a pattern is worth watching at all. If the measured move is tiny, the pattern may not be worth the trading costs.
• Marking levels to review. A projected level is a place to reassess, not an automatic exit.

The Bottom Line

The measured move turns a pattern's size into a projected distance. It's useful as a common reference point and a planning tool, and it's easy to over-trust. Treat any pattern target as one scenario among many.

This article is for educational purposes only. It does not predict prices and is not investment advice.