Breakout

First Hour Range Calculator

Enter the high and low from the first hour of the regular session (a wider, slower-forming range than a 5-15 minute opening range) to get breakout trigger levels and 1x-range extension targets, plus see where the last traded price sits relative to that range right now.

First Hour High

First Hour Low

Last Price (optional)

Leave blank to skip the current-position read.

First hour range···

Midpoint···

Long trigger / 1x target···

Short trigger / 1x target···

Current position···

Educational tool only, not financial advice. First-hour levels are a reference range, not a guaranteed signal. Check it against your own plan and risk rules before you trade it.

Built by Jason Parker, founder of Trading Ranges.