Keltner Channel Calculator
Calculate an EMA-centered Keltner Channel from ordered entered bars, with true range, rolling ATR, multiplier, warm-up and channel width visible.
Enter EMA, ATR, multiplier and ordered HLC bars
The middle line uses a first-close-seeded EMA; the offset uses a rolling simple average of true range.
One completed bar per line. Close must lie inside the high-low range.
Latest Keltner Channel state
Entered VWAP, CMF and Keltner 1.0.0.
| Label | Index | High | Low | Close | Prior close | EMA middle | True range | Rolling ATR | Upper | Lower | Width | State |
|---|
How the Keltner Channel is calculated
True range = max(high, previous close) − min(low, previous close)
ATR = A-row simple average of true range
Upper / lower = middle ± multiplier × ATR
Version 1.0.0 matches this site’s Observed ATR Calculator by using a rolling arithmetic mean of true range. The first reportable channel is zero-based index A.
The EMA is calculated from the first entered close with alpha 2 ÷ (E + 1). A platform using Wilder ATR, a different seed or a longer history boundary can differ.
Assumptions and limits
- EMA and ATR periods must be integers from 2 to 200 and the multiplier must be positive.
- At least ATR period plus one ordered HLC bars are required.
- Rows must use one symbol, timeframe and broker feed.
- Platform values can differ when ATR smoothing, EMA seed, history boundary or applied price differs.
- Trend, slope, volatility regime, boundary touch, breakout, support, resistance and trading interpretations are withheld.
Worked example from the audited fixture
How to interpret the result
This profile combines a first-close-seeded EMA with a simple average of true range. A platform using Wilder ATR or another seed can differ. Band position and width do not establish a breakout, reversal or volatility forecast.
Frequently asked questions
- Enter EMA and ATR periods, a positive ATR multiplier and at least ATR period plus one ordered HLC bars.
- It is a first-close-seeded EMA using alpha two divided by the EMA period plus one.
- It is maximum of current high and previous close minus minimum of current low and previous close.
- Version 1.0.0 uses the arithmetic mean of the latest entered number of true ranges.
- Upper and lower equal the EMA middle plus or minus the entered multiplier times rolling ATR.
- The first complete ATR window and channel appear at zero-based index equal to the ATR period.
- Only when history, EMA seed, applied close, true range, ATR smoothing, periods and multiplier match.
- No. Trend, volatility regime, support, resistance, breakout, entry and exit labels are withheld.
Sources and methodology
- MetaQuotes Code Base — Keltner Channel — Published moving-average center plus ATR-multiple boundaries.
- MetaQuotes Code Base — ATR — Platform true-range moving-average implementation context.
- MQL5 Article — Keltner Channel — Additional platform implementation and parameter context.
Continue entered channel analysis
Compare the chart feed and trading terms
Use one broker feed, symbol and timeframe for every entered observation, and compare the source history with your terminal before relying on a platform match.
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