Historical data · United States · 2000–2014

How rare is my birthday?

Choose a month and day to find its rank among all 366 dates. The comparison uses births per occurrence, so February 29 is adjusted for appearing less often.

Your birthday result

Choose a date above, then select “Look up this birthday”.

What does the rank mean?

Rank 1 is least common; rank 366 is most common by adjusted mean in this sample. Equal means retain calendar order, matching the CSV; adjacent ranks can therefore have the same frequency. The mean is total births on that month/day divided by the number of times the date appears in the file.

For example, February 29 has 41,869 births across 4 occurrences: 10,467.25 per occurrence, rank 16. December 25 has 96,568 across 15: 6,437.87 per occurrence, rank 1. Calendar rarity and births per occurrence answer different questions.

This is not a worldwide ranking, a percentage of people alive today or a birth-chart rarity score. Your birth year does not change this month/day lookup.

Download all 366 rows as CSV · Explore your calculated birth chart

Browse the complete 366-date table

US SSA 2000–2014 · least-common-first adjusted rank
Date	Rank	Total births	Occurrences	Births per occurrence
January 1	2	116,030	15	7735.33
January 2	5	144,083	15	9605.53
January 3	185	170,115	15	11341.00
January 4	215	171,663	15	11444.20
January 5	107	166,682	15	11112.13
January 6	68	164,167	15	10944.47
January 7	134	167,622	15	11174.80
January 8	45	163,078	15	10871.87
January 9	60	163,838	15	10922.53
January 10	206	171,353	15	11423.53
January 11	188	170,299	15	11353.27
January 12	93	165,975	15	11065.00
January 13	20	159,289	15	10619.27
January 14	144	168,390	15	11226.00
January 15	27	161,300	15	10753.33
January 16	43	163,044	15	10869.60
January 17	170	169,280	15	11285.33
January 18	146	168,555	15	11237.00
January 19	30	161,843	15	10789.53
January 20	34	162,332	15	10822.13
January 21	77	164,719	15	10981.27
January 22	41	162,851	15	10856.73
January 23	124	167,275	15	11151.67
January 24	216	171,684	15	11445.60
January 25	169	169,222	15	11281.47
January 26	66	164,093	15	10939.53
January 27	39	162,595	15	10839.67
January 28	87	165,496	15	11033.07
January 29	26	161,292	15	10752.80
January 30	85	165,439	15	11029.27
January 31	163	168,984	15	11265.60
February 1	175	169,444	15	11296.27
February 2	94	166,066	15	11071.07
February 3	50	163,254	15	10883.60
February 4	105	166,661	15	11110.73
February 5	55	163,391	15	10892.73
February 6	96	166,125	15	11075.00
February 7	244	173,627	15	11575.13
February 8	198	170,915	15	11394.33
February 9	70	164,291	15	10952.73
February 10	86	165,466	15	11031.07
February 11	143	168,381	15	11225.40
February 12	110	166,773	15	11118.20
February 13	42	162,957	15	10863.80
February 14	319	179,978	15	11998.53
February 15	233	172,798	15	11519.87
February 16	82	165,174	15	11011.60
February 17	48	163,089	15	10872.60
February 18	116	167,037	15	11135.80
February 19	40	162,690	15	10846.00
February 20	123	167,262	15	11150.80
February 21	193	170,500	15	11366.67
February 22	207	171,365	15	11424.33
February 23	79	164,932	15	10995.47
February 24	51	163,266	15	10884.40
February 25	129	167,594	15	11172.93
February 26	52	163,313	15	10887.53
February 27	102	166,548	15	11103.20
February 28	199	170,927	15	11395.13
February 29	16	41,869	4	10467.25
March 1	217	171,698	15	11446.53
March 2	78	164,841	15	10989.40
March 3	113	166,872	15	11124.80
March 4	75	164,685	15	10979.00
March 5	122	167,257	15	11150.47
March 6	130	167,603	15	11173.53
March 7	214	171,634	15	11442.27
March 8	165	169,037	15	11269.13
March 9	76	164,696	15	10979.73
March 10	74	164,649	15	10976.60
March 11	56	163,429	15	10895.27
March 12	139	168,054	15	11203.60
March 13	57	163,494	15	10899.60
March 14	225	172,129	15	11475.27
March 15	167	169,076	15	11271.73
March 16	63	164,018	15	10934.53
March 17	132	167,609	15	11173.93
March 18	65	164,085	15	10939.00
March 19	108	166,721	15	11114.73
March 20	183	169,955	15	11330.33
March 21	237	173,095	15	11539.67
March 22	159	168,874	15	11258.27
March 23	64	164,082	15	10938.80
March 24	67	164,130	15	10942.00
March 25	72	164,548	15	10969.87
March 26	91	165,840	15	11056.00
March 27	127	167,368	15	11157.87
March 28	212	171,550	15	11436.67
March 29	106	166,675	15	11111.67
March 30	59	163,623	15	10908.20
March 31	28	161,634	15	10775.60
April 1	12	154,737	15	10315.80
April 2	153	168,693	15	11246.20
April 3	142	168,316	15	11221.07
April 4	256	174,347	15	11623.13
April 5	151	168,654	15	11243.60
April 6	32	162,287	15	10819.13
April 7	44	163,074	15	10871.60
April 8	46	163,080	15	10872.00
April 9	84	165,299	15	11019.93
April 10	109	166,771	15	11118.07
April 11	208	171,436	15	11429.07
April 12	161	168,896	15	11259.73
April 13	18	157,511	15	10500.73
April 14	49	163,144	15	10876.27
April 15	47	163,083	15	10872.20
April 16	111	166,774	15	11118.27
April 17	128	167,526	15	11168.40
April 18	189	170,365	15	11357.67
April 19	136	167,745	15	11183.00
April 20	58	163,566	15	10904.40
April 21	35	162,374	15	10824.93
April 22	37	162,558	15	10837.20
April 23	89	165,528	15	11035.20
April 24	104	166,650	15	11110.00
April 25	196	170,685	15	11379.00
April 26	133	167,615	15	11174.33
April 27	38	162,582	15	10838.80
April 28	36	162,544	15	10836.27
April 29	24	160,991	15	10732.73
April 30	61	163,919	15	10927.93
May 1	173	169,438	15	11295.87
May 2	222	171,861	15	11457.40
May 3	140	168,072	15	11204.80
May 4	31	162,243	15	10816.20
May 5	95	166,073	15	11071.53
May 6	54	163,325	15	10888.33
May 7	112	166,789	15	11119.27
May 8	149	168,607	15	11240.47
May 9	195	170,670	15	11378.00
May 10	197	170,894	15	11392.93
May 11	69	164,192	15	10946.13
May 12	83	165,193	15	11012.87
May 13	21	159,795	15	10653.00
May 14	166	169,045	15	11269.67
May 15	211	171,529	15	11435.27
May 16	267	174,965	15	11664.33
May 17	204	171,265	15	11417.67
May 18	90	165,771	15	11051.40
May 19	81	165,141	15	11009.40
May 20	137	167,876	15	11191.73
May 21	224	172,074	15	11471.60
May 22	243	173,607	15	11573.80
May 23	307	178,891	15	11926.07
May 24	266	174,916	15	11661.07
May 25	100	166,475	15	11098.33
May 26	13	154,955	15	10330.33
May 27	22	159,894	15	10659.60
May 28	29	161,719	15	10781.27
May 29	80	165,097	15	11006.47
May 30	178	169,548	15	11303.20
May 31	88	165,525	15	11035.00
June 1	205	171,348	15	11423.20
June 2	210	171,526	15	11435.07
June 3	147	168,576	15	11238.40
June 4	213	171,559	15	11437.27
June 5	220	171,822	15	11454.80
June 6	242	173,566	15	11571.07
June 7	227	172,165	15	11477.67
June 8	162	168,962	15	11264.13
June 9	118	167,096	15	11139.73
June 10	141	168,219	15	11214.60
June 11	191	170,388	15	11359.20
June 12	232	172,764	15	11517.60
June 13	202	171,122	15	11408.13
June 14	255	174,340	15	11622.67
June 15	168	169,104	15	11273.60
June 16	180	169,648	15	11309.87
June 17	171	169,293	15	11286.20
June 18	249	173,961	15	11597.40
June 19	221	171,835	15	11455.67
June 20	298	177,985	15	11865.67
June 21	251	174,078	15	11605.20
June 22	176	169,511	15	11300.73
June 23	172	169,315	15	11287.67
June 24	174	169,441	15	11296.07
June 25	260	174,558	15	11637.20
June 26	269	175,103	15	11673.53
June 27	318	179,952	15	11996.80
June 28	301	178,489	15	11899.27
June 29	246	173,792	15	11586.13
June 30	247	173,842	15	11589.47
July 1	295	177,820	15	11854.67
July 2	328	180,817	15	12054.47
July 3	272	175,346	15	11689.73
July 4	4	132,229	15	8815.27
July 5	25	161,091	15	10739.40
July 6	286	176,278	15	11751.87
July 7	350	183,246	15	12216.40
July 8	311	179,420	15	11961.33
July 9	323	180,238	15	12015.87
July 10	330	180,936	15	12062.40
July 11	352	183,410	15	12227.33
July 12	303	178,705	15	11913.67
July 13	184	170,080	15	11338.67
July 14	277	175,676	15	11711.73
July 15	283	176,148	15	11743.20
July 16	316	179,766	15	11984.40
July 17	325	180,276	15	12018.40
July 18	344	182,886	15	12192.40
July 19	297	177,966	15	11864.40
July 20	254	174,276	15	11618.40
July 21	278	175,720	15	11714.67
July 22	262	174,622	15	11641.47
July 23	300	178,421	15	11894.73
July 24	304	178,750	15	11916.67
July 25	337	181,972	15	12131.47
July 26	299	178,278	15	11885.20
July 27	253	174,187	15	11612.47
July 28	252	174,153	15	11610.20
July 29	241	173,548	15	11569.87
July 30	290	176,980	15	11798.67
July 31	292	177,177	15	11811.80
August 1	351	183,254	15	12216.93
August 2	309	178,928	15	11928.53
August 3	238	173,219	15	11547.93
August 4	250	174,071	15	11604.73
August 5	258	174,444	15	11629.60
August 6	291	177,008	15	11800.53
August 7	308	178,909	15	11927.27
August 8	359	186,328	15	12421.87
August 9	335	181,514	15	12100.93
August 10	271	175,301	15	11686.73
August 11	270	175,218	15	11681.20
August 12	284	176,153	15	11743.53
August 13	268	175,084	15	11672.27
August 14	321	180,133	15	12008.87
August 15	356	185,391	15	12359.40
August 16	338	182,187	15	12145.80
August 17	288	176,471	15	11764.73
August 18	281	176,013	15	11734.20
August 19	261	174,576	15	11638.40
August 20	327	180,359	15	12023.93
August 21	312	179,467	15	11964.47
August 22	353	183,835	15	12255.67
August 23	322	180,161	15	12010.73
August 24	265	174,864	15	11657.60
August 25	264	174,832	15	11655.47
August 26	263	174,655	15	11643.67
August 27	315	179,733	15	11982.20
August 28	349	183,202	15	12213.47
August 29	355	185,073	15	12338.20
August 30	339	182,411	15	12160.73
August 31	294	177,376	15	11825.07
September 1	62	163,979	15	10931.93
September 2	92	165,886	15	11059.07
September 3	126	167,330	15	11155.33
September 4	231	172,536	15	11502.40
September 5	306	178,833	15	11922.20
September 6	280	175,863	15	11724.20
September 7	289	176,509	15	11767.27
September 8	336	181,846	15	12123.07
September 9	354	184,662	15	12310.80
September 10	362	186,668	15	12444.53
September 11	274	175,491	15	11699.40
September 12	366	191,024	15	12734.93
September 13	348	183,131	15	12208.73
September 14	343	182,875	15	12191.67
September 15	346	182,974	15	12198.27
September 16	333	181,365	15	12091.00
September 17	357	185,792	15	12386.13
September 18	360	186,387	15	12425.80
September 19	365	190,435	15	12695.67
September 20	364	188,123	15	12541.53
September 21	332	181,071	15	12071.40
September 22	317	179,829	15	11988.60
September 23	326	180,319	15	12021.27
September 24	341	182,777	15	12185.13
September 25	347	183,073	15	12204.87
September 26	358	186,322	15	12421.47
September 27	340	182,576	15	12171.73
September 28	276	175,661	15	11710.73
September 29	248	173,932	15	11595.47
September 30	228	172,323	15	11488.20
October 1	310	179,334	15	11955.60
October 2	302	178,548	15	11903.20
October 3	334	181,481	15	12098.73
October 4	293	177,327	15	11821.80
October 5	230	172,521	15	11501.40
October 6	194	170,513	15	11367.53
October 7	181	169,674	15	11311.60
October 8	235	172,969	15	11531.27
October 9	219	171,801	15	11453.40
October 10	324	180,271	15	12018.07
October 11	257	174,393	15	11626.20
October 12	164	169,006	15	11267.07
October 13	33	162,310	15	10820.67
October 14	125	167,291	15	11152.73
October 15	229	172,428	15	11495.20
October 16	223	171,885	15	11459.00
October 17	282	176,021	15	11734.73
October 18	234	172,822	15	11521.47
October 19	99	166,444	15	11096.27
October 20	114	166,994	15	11132.93
October 21	97	166,381	15	11092.07
October 22	203	171,230	15	11415.33
October 23	200	170,999	15	11399.93
October 24	279	175,840	15	11722.67
October 25	240	173,330	15	11555.33
October 26	121	167,233	15	11148.87
October 27	115	167,019	15	11134.60
October 28	131	167,608	15	11173.87
October 29	148	168,606	15	11240.40
October 30	103	166,644	15	11109.60
October 31	11	153,942	15	10262.80
November 1	287	176,290	15	11752.67
November 2	192	170,473	15	11364.87
November 3	156	168,772	15	11251.47
November 4	135	167,638	15	11175.87
November 5	218	171,722	15	11448.13
November 6	209	171,454	15	11430.27
November 7	275	175,619	15	11707.93
November 8	236	172,970	15	11531.33
November 9	119	167,177	15	11145.13
November 10	120	167,194	15	11146.27
November 11	152	168,687	15	11245.80
November 12	190	170,386	15	11359.07
November 13	101	166,498	15	11099.87
November 14	273	175,402	15	11693.47
November 15	259	174,530	15	11635.33
November 16	179	169,573	15	11304.87
November 17	154	168,713	15	11247.53
November 18	160	168,878	15	11258.53
November 19	239	173,247	15	11549.80
November 20	296	177,926	15	11861.73
November 21	320	180,074	15	12004.93
November 22	23	160,582	15	10705.47
November 23	7	148,131	15	9875.40
November 24	10	150,369	15	10024.60
November 25	8	149,677	15	9978.47
November 26	15	155,791	15	10386.07
November 27	9	150,190	15	10012.67
November 28	17	157,291	15	10486.07
November 29	117	167,069	15	11137.93
November 30	98	166,427	15	11095.13
December 1	187	170,255	15	11350.33
December 2	155	168,725	15	11248.33
December 3	201	171,088	15	11405.87
December 4	182	169,826	15	11321.73
December 5	245	173,695	15	11579.67
December 6	177	169,540	15	11302.67
December 7	73	164,548	15	10969.87
December 8	71	164,440	15	10962.67
December 9	53	163,318	15	10887.87
December 10	145	168,432	15	11228.80
December 11	157	168,774	15	11251.60
December 12	313	179,554	15	11970.27
December 13	158	168,793	15	11252.87
December 14	138	167,888	15	11192.53
December 15	150	168,638	15	11242.53
December 16	186	170,252	15	11350.13
December 17	285	176,237	15	11749.13
December 18	329	180,913	15	12060.87
December 19	363	186,685	15	12445.67
December 20	361	186,593	15	12439.53
December 21	314	179,645	15	11976.33
December 22	226	172,148	15	11476.53
December 23	14	155,501	15	10366.73
December 24	3	120,516	15	8034.40
December 25	1	96,568	15	6437.87
December 26	6	148,113	15	9874.20
December 27	342	182,839	15	12189.27
December 28	345	182,888	15	12192.53
December 29	331	181,021	15	12068.07
December 30	305	178,769	15	11917.93
December 31	19	158,230	15	10548.67