Converter

How many months is 183 days?

183 days in months is 6 months (6.01 months exactly), or 26 weeks and 1 day. Counted from a real start date, 183 days covers anywhere from 5 months and 30 days to 6 months and 2 days of the calendar. Enter your start date below for the exact end date. 183 is the smallest whole number of days that is more than half of a 365-day year, which is why it is the most common tax-residency threshold.

Checking the 183-day tax rule? Use the 183-day rule calculator to count your real days against it.

Number of days

In months

6.01

About 6 months, using the average calendar month of 30.44 days.

In weeks

26.14

26 weeks and 1 day

Share of a year

50.1%

of a 365-day year (50.0% of a leap year), or 4,392 hours

Why the calendar answer differs

6 consecutive calendar months can be as short as 181 days or as long as 184 days, depending on which months they are. That gap is why a statute written in months and a threshold written in days are not interchangeable.

From a start date

Pick the day you arrived (or any start date) to get the exact end date and calendar span for 183 days.

Start dateThe start date counts as day 1

Why the answer is “about” six months

A calendar month is not a fixed length. Six consecutive months run from 181 days (February through July in a non-leap year) to 184 days (March through August), depending on which six you pick and whether a leap day falls inside them. So 183 days lands near six months without ever being equal to it.

That imprecision is the reason tax law prefers days. A threshold of “183 days” produces the same answer for everyone. A threshold of “six months” does not, which is why the handful of US states that still write their statutes in months, Alabama and Oklahoma at seven months, Arkansas at six, leave a genuine ambiguity that is safest read the short way.

Common thresholds, converted

Days	Months	Weeks	Where it applies
90	2.96	12.9	Schengen area (rolling 180-day window)
180	5.91	25.7	Thailand
182	5.98	26.0	India, Malaysia
183	6.01	26.1	The most common threshold worldwide
184	6.05	26.3	New York, New Jersey, Massachusetts, Connecticut
200	6.57	28.6	Oregon, Hawaii
214	7.03	30.6	Alabama, Oklahoma (statutes say seven months)
270	8.87	38.6	Idaho
330	10.84	47.1	US foreign earned income exclusion (FEIE)

The formula

Months = days ÷ 30.436875. That divisor is the average Gregorian month (365.2425 days ÷ 12), so 183 ÷ 30.436875 = 6.01 months. Shortcuts give slightly different answers: dividing by 30 gives 6.10, and by 30.42 (365 ÷ 12) gives 6.016. None of them tells you the date a period ends, because real months are 28 to 31 days long. For that, count forward from the start date, as the converter above does.

How long is six months, by start month?

Six calendar months starting on the 1st of each month, in days. The leap-year column applies when the six months include a 29 February. Rows where six months is exactly 183 days are marked.

Start	Ends	Common year	Leap year
1 January	1 July	181	182
1 February	1 August	181	182
1 March	1 September	184	184
1 April	1 October	183= 183	183= 183
1 May	1 November	184	184
1 June	1 December	183= 183	183= 183
1 July	1 January	184	184
1 August	1 February	184	184
1 September	1 March	181	182
1 October	1 April	182	183= 183
1 November	1 May	181	182
1 December	1 June	182	183= 183

Days to months chart (1 to 365)

Every whole number of days from 1 to 365 in months and in weeks and days. Link straight to a row with its number, for example #180, #182 or #214.

Show the full chart

Days	Months	Weeks and days
1	0.03	0 weeks 1 day
2	0.07	0 weeks 2 days
3	0.10	0 weeks 3 days
4	0.13	0 weeks 4 days
5	0.16	0 weeks 5 days
6	0.20	0 weeks 6 days
7	0.23	1 week
8	0.26	1 week 1 day
9	0.30	1 week 2 days
10	0.33	1 week 3 days
11	0.36	1 week 4 days
12	0.39	1 week 5 days
13	0.43	1 week 6 days
14	0.46	2 weeks
15	0.49	2 weeks 1 day
16	0.53	2 weeks 2 days
17	0.56	2 weeks 3 days
18	0.59	2 weeks 4 days
19	0.62	2 weeks 5 days
20	0.66	2 weeks 6 days
21	0.69	3 weeks
22	0.72	3 weeks 1 day
23	0.76	3 weeks 2 days
24	0.79	3 weeks 3 days
25	0.82	3 weeks 4 days
26	0.85	3 weeks 5 days
27	0.89	3 weeks 6 days
28	0.92	4 weeks
29	0.95	4 weeks 1 day
30	0.99	4 weeks 2 days
31	1.02	4 weeks 3 days
32	1.05	4 weeks 4 days
33	1.08	4 weeks 5 days
34	1.12	4 weeks 6 days
35	1.15	5 weeks
36	1.18	5 weeks 1 day
37	1.22	5 weeks 2 days
38	1.25	5 weeks 3 days
39	1.28	5 weeks 4 days
40	1.31	5 weeks 5 days
41	1.35	5 weeks 6 days
42	1.38	6 weeks
43	1.41	6 weeks 1 day
44	1.45	6 weeks 2 days
45	1.48	6 weeks 3 days
46	1.51	6 weeks 4 days
47	1.54	6 weeks 5 days
48	1.58	6 weeks 6 days
49	1.61	7 weeks
50	1.64	7 weeks 1 day
51	1.68	7 weeks 2 days
52	1.71	7 weeks 3 days
53	1.74	7 weeks 4 days
54	1.77	7 weeks 5 days
55	1.81	7 weeks 6 days
56	1.84	8 weeks
57	1.87	8 weeks 1 day
58	1.91	8 weeks 2 days
59	1.94	8 weeks 3 days
60	1.97	8 weeks 4 days
61	2.00	8 weeks 5 days
62	2.04	8 weeks 6 days
63	2.07	9 weeks
64	2.10	9 weeks 1 day
65	2.14	9 weeks 2 days
66	2.17	9 weeks 3 days
67	2.20	9 weeks 4 days
68	2.23	9 weeks 5 days
69	2.27	9 weeks 6 days
70	2.30	10 weeks
71	2.33	10 weeks 1 day
72	2.37	10 weeks 2 days
73	2.40	10 weeks 3 days
74	2.43	10 weeks 4 days
75	2.46	10 weeks 5 days
76	2.50	10 weeks 6 days
77	2.53	11 weeks
78	2.56	11 weeks 1 day
79	2.60	11 weeks 2 days
80	2.63	11 weeks 3 days
81	2.66	11 weeks 4 days
82	2.69	11 weeks 5 days
83	2.73	11 weeks 6 days
84	2.76	12 weeks
85	2.79	12 weeks 1 day
86	2.83	12 weeks 2 days
87	2.86	12 weeks 3 days
88	2.89	12 weeks 4 days
89	2.92	12 weeks 5 days
90	2.96	12 weeks 6 days
91	2.99	13 weeks
92	3.02	13 weeks 1 day
93	3.06	13 weeks 2 days
94	3.09	13 weeks 3 days
95	3.12	13 weeks 4 days
96	3.15	13 weeks 5 days
97	3.19	13 weeks 6 days
98	3.22	14 weeks
99	3.25	14 weeks 1 day
100	3.29	14 weeks 2 days
101	3.32	14 weeks 3 days
102	3.35	14 weeks 4 days
103	3.38	14 weeks 5 days
104	3.42	14 weeks 6 days
105	3.45	15 weeks
106	3.48	15 weeks 1 day
107	3.52	15 weeks 2 days
108	3.55	15 weeks 3 days
109	3.58	15 weeks 4 days
110	3.61	15 weeks 5 days
111	3.65	15 weeks 6 days
112	3.68	16 weeks
113	3.71	16 weeks 1 day
114	3.75	16 weeks 2 days
115	3.78	16 weeks 3 days
116	3.81	16 weeks 4 days
117	3.84	16 weeks 5 days
118	3.88	16 weeks 6 days
119	3.91	17 weeks
120	3.94	17 weeks 1 day
121	3.98	17 weeks 2 days
122	4.01	17 weeks 3 days
123	4.04	17 weeks 4 days
124	4.07	17 weeks 5 days
125	4.11	17 weeks 6 days
126	4.14	18 weeks
127	4.17	18 weeks 1 day
128	4.21	18 weeks 2 days
129	4.24	18 weeks 3 days
130	4.27	18 weeks 4 days
131	4.30	18 weeks 5 days
132	4.34	18 weeks 6 days
133	4.37	19 weeks
134	4.40	19 weeks 1 day
135	4.44	19 weeks 2 days
136	4.47	19 weeks 3 days
137	4.50	19 weeks 4 days
138	4.53	19 weeks 5 days
139	4.57	19 weeks 6 days
140	4.60	20 weeks
141	4.63	20 weeks 1 day
142	4.67	20 weeks 2 days
143	4.70	20 weeks 3 days
144	4.73	20 weeks 4 days
145	4.76	20 weeks 5 days
146	4.80	20 weeks 6 days
147	4.83	21 weeks
148	4.86	21 weeks 1 day
149	4.90	21 weeks 2 days
150	4.93	21 weeks 3 days
151	4.96	21 weeks 4 days
152	4.99	21 weeks 5 days
153	5.03	21 weeks 6 days
154	5.06	22 weeks
155	5.09	22 weeks 1 day
156	5.13	22 weeks 2 days
157	5.16	22 weeks 3 days
158	5.19	22 weeks 4 days
159	5.22	22 weeks 5 days
160	5.26	22 weeks 6 days
161	5.29	23 weeks
162	5.32	23 weeks 1 day
163	5.36	23 weeks 2 days
164	5.39	23 weeks 3 days
165	5.42	23 weeks 4 days
166	5.45	23 weeks 5 days
167	5.49	23 weeks 6 days
168	5.52	24 weeks
169	5.55	24 weeks 1 day
170	5.59	24 weeks 2 days
171	5.62	24 weeks 3 days
172	5.65	24 weeks 4 days
173	5.68	24 weeks 5 days
174	5.72	24 weeks 6 days
175	5.75	25 weeks
176	5.78	25 weeks 1 day
177	5.82	25 weeks 2 days
178	5.85	25 weeks 3 days
179	5.88	25 weeks 4 days
180	5.91	25 weeks 5 days
181	5.95	25 weeks 6 days
182	5.98	26 weeks
183	6.01	26 weeks 1 day
184	6.05	26 weeks 2 days
185	6.08	26 weeks 3 days
186	6.11	26 weeks 4 days
187	6.14	26 weeks 5 days
188	6.18	26 weeks 6 days
189	6.21	27 weeks
190	6.24	27 weeks 1 day
191	6.28	27 weeks 2 days
192	6.31	27 weeks 3 days
193	6.34	27 weeks 4 days
194	6.37	27 weeks 5 days
195	6.41	27 weeks 6 days
196	6.44	28 weeks
197	6.47	28 weeks 1 day
198	6.51	28 weeks 2 days
199	6.54	28 weeks 3 days
200	6.57	28 weeks 4 days
201	6.60	28 weeks 5 days
202	6.64	28 weeks 6 days
203	6.67	29 weeks
204	6.70	29 weeks 1 day
205	6.74	29 weeks 2 days
206	6.77	29 weeks 3 days
207	6.80	29 weeks 4 days
208	6.83	29 weeks 5 days
209	6.87	29 weeks 6 days
210	6.90	30 weeks
211	6.93	30 weeks 1 day
212	6.97	30 weeks 2 days
213	7.00	30 weeks 3 days
214	7.03	30 weeks 4 days
215	7.06	30 weeks 5 days
216	7.10	30 weeks 6 days
217	7.13	31 weeks
218	7.16	31 weeks 1 day
219	7.20	31 weeks 2 days
220	7.23	31 weeks 3 days
221	7.26	31 weeks 4 days
222	7.29	31 weeks 5 days
223	7.33	31 weeks 6 days
224	7.36	32 weeks
225	7.39	32 weeks 1 day
226	7.43	32 weeks 2 days
227	7.46	32 weeks 3 days
228	7.49	32 weeks 4 days
229	7.52	32 weeks 5 days
230	7.56	32 weeks 6 days
231	7.59	33 weeks
232	7.62	33 weeks 1 day
233	7.66	33 weeks 2 days
234	7.69	33 weeks 3 days
235	7.72	33 weeks 4 days
236	7.75	33 weeks 5 days
237	7.79	33 weeks 6 days
238	7.82	34 weeks
239	7.85	34 weeks 1 day
240	7.89	34 weeks 2 days
241	7.92	34 weeks 3 days
242	7.95	34 weeks 4 days
243	7.98	34 weeks 5 days
244	8.02	34 weeks 6 days
245	8.05	35 weeks
246	8.08	35 weeks 1 day
247	8.12	35 weeks 2 days
248	8.15	35 weeks 3 days
249	8.18	35 weeks 4 days
250	8.21	35 weeks 5 days
251	8.25	35 weeks 6 days
252	8.28	36 weeks
253	8.31	36 weeks 1 day
254	8.35	36 weeks 2 days
255	8.38	36 weeks 3 days
256	8.41	36 weeks 4 days
257	8.44	36 weeks 5 days
258	8.48	36 weeks 6 days
259	8.51	37 weeks
260	8.54	37 weeks 1 day
261	8.58	37 weeks 2 days
262	8.61	37 weeks 3 days
263	8.64	37 weeks 4 days
264	8.67	37 weeks 5 days
265	8.71	37 weeks 6 days
266	8.74	38 weeks
267	8.77	38 weeks 1 day
268	8.81	38 weeks 2 days
269	8.84	38 weeks 3 days
270	8.87	38 weeks 4 days
271	8.90	38 weeks 5 days
272	8.94	38 weeks 6 days
273	8.97	39 weeks
274	9.00	39 weeks 1 day
275	9.04	39 weeks 2 days
276	9.07	39 weeks 3 days
277	9.10	39 weeks 4 days
278	9.13	39 weeks 5 days
279	9.17	39 weeks 6 days
280	9.20	40 weeks
281	9.23	40 weeks 1 day
282	9.27	40 weeks 2 days
283	9.30	40 weeks 3 days
284	9.33	40 weeks 4 days
285	9.36	40 weeks 5 days
286	9.40	40 weeks 6 days
287	9.43	41 weeks
288	9.46	41 weeks 1 day
289	9.50	41 weeks 2 days
290	9.53	41 weeks 3 days
291	9.56	41 weeks 4 days
292	9.59	41 weeks 5 days
293	9.63	41 weeks 6 days
294	9.66	42 weeks
295	9.69	42 weeks 1 day
296	9.73	42 weeks 2 days
297	9.76	42 weeks 3 days
298	9.79	42 weeks 4 days
299	9.82	42 weeks 5 days
300	9.86	42 weeks 6 days
301	9.89	43 weeks
302	9.92	43 weeks 1 day
303	9.96	43 weeks 2 days
304	9.99	43 weeks 3 days
305	10.02	43 weeks 4 days
306	10.05	43 weeks 5 days
307	10.09	43 weeks 6 days
308	10.12	44 weeks
309	10.15	44 weeks 1 day
310	10.19	44 weeks 2 days
311	10.22	44 weeks 3 days
312	10.25	44 weeks 4 days
313	10.28	44 weeks 5 days
314	10.32	44 weeks 6 days
315	10.35	45 weeks
316	10.38	45 weeks 1 day
317	10.41	45 weeks 2 days
318	10.45	45 weeks 3 days
319	10.48	45 weeks 4 days
320	10.51	45 weeks 5 days
321	10.55	45 weeks 6 days
322	10.58	46 weeks
323	10.61	46 weeks 1 day
324	10.64	46 weeks 2 days
325	10.68	46 weeks 3 days
326	10.71	46 weeks 4 days
327	10.74	46 weeks 5 days
328	10.78	46 weeks 6 days
329	10.81	47 weeks
330	10.84	47 weeks 1 day
331	10.87	47 weeks 2 days
332	10.91	47 weeks 3 days
333	10.94	47 weeks 4 days
334	10.97	47 weeks 5 days
335	11.01	47 weeks 6 days
336	11.04	48 weeks
337	11.07	48 weeks 1 day
338	11.10	48 weeks 2 days
339	11.14	48 weeks 3 days
340	11.17	48 weeks 4 days
341	11.20	48 weeks 5 days
342	11.24	48 weeks 6 days
343	11.27	49 weeks
344	11.30	49 weeks 1 day
345	11.33	49 weeks 2 days
346	11.37	49 weeks 3 days
347	11.40	49 weeks 4 days
348	11.43	49 weeks 5 days
349	11.47	49 weeks 6 days
350	11.50	50 weeks
351	11.53	50 weeks 1 day
352	11.56	50 weeks 2 days
353	11.60	50 weeks 3 days
354	11.63	50 weeks 4 days
355	11.66	50 weeks 5 days
356	11.70	50 weeks 6 days
357	11.73	51 weeks
358	11.76	51 weeks 1 day
359	11.79	51 weeks 2 days
360	11.83	51 weeks 3 days
361	11.86	51 weeks 4 days
362	11.89	51 weeks 5 days
363	11.93	51 weeks 6 days
364	11.96	52 weeks
365	11.99	52 weeks 1 day

¿Cuántos meses son 183 días?

183 días son aproximadamente 6 meses (6,01 meses), o 26 semanas y 1 día. En portugués: 183 dias são cerca de 6 meses, ou 26 semanas e 1 dia.

To count real days against a real threshold rather than convert units, use the 183-day rule calculator, or read the 183-day rule explained. Tracking several countries at once? Use the days in country counter. If your threshold is the US one, note that the Substantial Presence Test weights three years together and is not a simple 183-day count at all.