ADX Calculator

Calculate ADX, directional movement and +DI / −DI from your OHLC series.

Your inputs

The starting values are an illustrative example. Calculations run locally; your inputs are not sent to a data provider.

Period (2–500)

OHLC rows — open, high, low, close

100, 102.00, 98.00, 100
102.08, 104.08, 100.08, 102.08
102.62, 104.62, 100.62, 102.62
101.48, 103.48, 99.48, 101.48
100.09, 102.09, 98.09, 100.09
100.08, 102.08, 98.08, 100.08
101.84, 103.84, 99.84, 101.84
104.11, 106.11, 102.11, 104.11
105.18, 107.18, 103.18, 105.18
104.42, 106.42, 102.42, 104.42
102.91, 104.91, 100.91, 102.91
102.4, 104.40, 100.40, 102.4
103.73, 105.73, 101.73, 103.73
106.04, 108.04, 104.04, 106.04
107.58, 109.58, 105.58, 107.58
107.3, 109.30, 105.30, 107.3
105.82, 107.82, 103.82, 105.82
104.88, 106.88, 102.88, 104.88
105.7, 107.70, 103.70, 105.7
107.9, 109.90, 105.90, 107.9
109.83, 111.83, 107.83, 109.83
110.07, 112.07, 108.07, 110.07
108.78, 110.78, 106.78, 108.78
107.51, 109.51, 105.51, 107.51
107.79, 109.79, 105.79, 107.79
109.74, 111.74, 107.74, 109.74
111.93, 113.93, 109.93, 111.93
112.71, 114.71, 110.71, 112.71
111.74, 113.74, 109.74, 111.74
110.27, 112.27, 108.27, 110.27
110.02, 112.02, 108.02, 110.02
111.59, 113.59, 109.59, 111.59
113.9, 115.90, 111.90, 113.9
115.2, 117.20, 113.20, 115.2
114.66, 116.66, 112.66, 114.66
113.14, 115.14, 111.14, 113.14
112.42, 114.42, 110.42, 112.42
113.51, 115.51, 111.51, 113.51
115.79, 117.79, 113.79, 115.79
117.53, 119.53, 115.53, 117.53
117.49, 119.49, 115.49, 117.49
116.08, 118.08, 114.08, 116.08
114.97, 116.97, 112.97, 114.97
115.54, 117.54, 113.54, 115.54
117.64, 119.64, 115.64, 117.64
119.7, 121.70, 117.70, 119.7
120.2, 122.20, 118.20, 120.2
119.05, 121.05, 117.05, 119.05
117.66, 119.66, 115.66, 117.66
117.69, 119.69, 115.69, 117.69

One row per observation; four comma-separated prices per row. No thousands separators. Keep one currency, interval and adjustment basis. Maximum 2,000 observations.

Illustrative example result

Latest ADX: 31.242539. Period: 14. Input order: oldest to newest.

Calculation steps, oldest observation first. Unavailable values are warm-up or undefined windows; they are not zero.

1
2	4.08	2.08	0
3	4	0.54	0
4	4	0	1.14
5	4	0	1.39
6	4	0	0.01
7	4	1.76	0
8	4.27	2.27	0
9	4	1.07	0
10	4	0	0.76
11	4	0	1.51
12	4	0	0.51
13	4	1.33	0
14	4.31	2.31	0
15	4	1.54	0	22.7674	9.3893	41.6026
16	4	0	0.28	21.1587	9.2205	39.2973
17	4	0	1.48	19.6626	11.1848	27.483
18	4	0	0.94	18.2713	12.0562	20.493
19	4	0.82	0	18.4291	11.2026	24.3878
20	4.2	2.2	0	20.946	10.3721	33.7629
21	4	1.93	0	22.8753	9.6392	40.7083
22	4	0.24	0	21.682	8.9576	41.5294
23	4	0	1.29	20.1477	10.6059	31.0267
24	4	0	1.27	18.721	12.1031	21.4697
25	4	0.28	0	17.8905	11.2455	22.8065
26	4	1.95	0	20.0783	10.4483	31.5463
27	4.19	2.19	0	22.462	9.6745	39.7911
28	4	0.78	0	22.2525	8.9901	42.4497	32.7396
29	4	0	0.97	20.6771	10.0704	34.496	32.8651
30	4	0	1.47	19.2123	11.9604	23.2635	32.1792
31	4	0	0.25	17.8505	11.5557	21.4065	31.4098
32	4	1.57	0	19.3682	10.7361	28.6738	31.2143
33	4.31	2.31	0	21.9708	9.9198	37.7887	31.6839
34	4	1.3	0	22.7145	9.2191	42.2606	32.4394
35	4	0	0.54	21.1089	9.5217	37.8287	32.8244
36	4	0	1.52	19.6157	11.5362	25.9355	32.3323
37	4	0	0.72	18.2271	11.9938	20.6258	31.4961
38	4	1.09	0	18.8662	11.1442	25.731	31.0843
39	4.28	2.28	0	21.4625	10.3033	35.1297	31.3733
40	4	1.74	0	23.0181	9.576	41.241	32.0781
41	4	0	0.04	21.3919	8.9701	40.9123	32.7091
42	4	0	1.41	19.8794	10.8282	29.4756	32.4782
43	4	0	1.11	18.4729	12.0255	21.1401	31.6683
44	4	0.57	0	18.1739	11.174	23.8512	31.1099
45	4.1	2.1	0	20.5693	10.364	32.9912	31.2443
46	4.06	2.06	0	22.7342	9.6204	40.5317	31.9077
47	4	0.5	0	22.0102	8.9397	42.231	32.6451
48	4	0	1.15	20.4519	10.3422	32.8299	32.6583
49	4	0	1.39	19.0031	12.0713	22.307	31.9189
50	4	0.03	0	17.7092	11.2157	22.4498	31.2425

How to read these results

Formula & calculation basis

TR is the maximum of high − low, |high − previous close| and |low − previous close|. Positive and negative directional movement are mutually exclusive. Seed each smoothed sum with the first n changes, then use previous sum − previous sum/n + current. DI = 100 × smoothed DM / smoothed TR; DX = 100 × |+DI − −DI| / (+DI + −DI). The first ADX is the mean of n DX values, then Wilder smoothing applies.

Coverage & limitations

The first ADX needs 2n bars. Zero true range gives DI = 0; zero total DI gives DX = 0. More history can change seeded values. ADX measures strength, not direction or a guaranteed return.

Sources & update policy

Methodology reference ↗

Example inputs are synthetic and are not company data or a forecast. The formula version is dated 2026-10-28. Calculations do not fetch market data.

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