# Convert Astronomical Units to Light Seconds

How many light seconds are in an astronomical unit? Easy AU to light seconds conversion.
1 Astronomical Unit =
499.00478 Light Seconds
(rounded to 8 digits)
An astronomical unit is the average distance between the Earth and the Sun. Estimates of this distance have varied over time. It is now defined as exactly 149,597,870.7 kilometers.
A light second is the distance that light travels in one second. It is exactly 299,792.458 kilometers or about 186,000 miles.
Astronomical Units to Light Seconds Conversion Table
(some results rounded)
AU light seconds
0.0001 0.049900
0.0002 0.099801
0.0003 0.14970
0.0004 0.19960
0.0005 0.24950
0.0006 0.29940
0.0007 0.34930
0.0008 0.39920
0.0009 0.44910
0.001 0.49900
0.002 0.99801
0.003 1.4970
0.004 1.9960
0.005 2.4950
0.006 2.9940
0.007 3.4930
0.008 3.9920
0.009 4.4910
0.01 4.9900
0.02 9.9801
0.03 14.970
0.04 19.960
0.05 24.950
0.06 29.940
0.07 34.930
0.08 39.920
0.09 44.910
0.1 49.900
0.2 99.801
0.3 149.70
0.4 199.60
0.5 249.50
0.6 299.40
0.7 349.30
0.8 399.20
0.9 449.10
1 499.00
2 998.01
3 1,497.0
4 1,996.0
5 2,495.0
6 2,994.0
7 3,493.0
8 3,992.0
9 4,491.0
10 4,990.0
11 5,489.1
12 5,988.1
13 6,487.1
14 6,986.1
15 7,485.1
16 7,984.1
17 8,483.1
18 8,982.1
19 9,481.1
20 9,980.1
21 10,479
22 10,978
23 11,477
24 11,976
25 12,475
26 12,974
27 13,473
28 13,972
29 14,471
30 14,970
31 15,469
32 15,968
33 16,467
34 16,966
35 17,465
36 17,964
37 18,463
38 18,962
39 19,461
40 19,960
41 20,459
42 20,958
43 21,457
44 21,956
45 22,455
46 22,954
47 23,453
48 23,952
49 24,451
50 24,950
51 25,449
52 25,948
53 26,447
54 26,946
55 27,445
56 27,944
57 28,443
58 28,942
59 29,441
60 29,940
61 30,439
62 30,938
63 31,437
64 31,936
65 32,435
66 32,934
67 33,433
68 33,932
69 34,431
70 34,930
71 35,429
72 35,928
73 36,427
74 36,926
75 37,425
76 37,924
77 38,423
78 38,922
79 39,421
80 39,920
81 40,419
82 40,918
83 41,417
84 41,916
85 42,415
86 42,914
87 43,413
88 43,912
89 44,411
90 44,910
91 45,409
92 45,908
93 46,407
94 46,906
95 47,405
96 47,904
97 48,403
98 48,902
99 49,401
100 49,900
101 50,399
102 50,898
103 51,397
104 51,896
105 52,396
106 52,895
AU light seconds
107 53,394
108 53,893
109 54,392
110 54,891
111 55,390
112 55,889
113 56,388
114 56,887
115 57,386
116 57,885
117 58,384
118 58,883
119 59,382
120 59,881
121 60,380
122 60,879
123 61,378
124 61,877
125 62,376
126 62,875
127 63,374
128 63,873
129 64,372
130 64,871
131 65,370
132 65,869
133 66,368
134 66,867
135 67,366
136 67,865
137 68,364
138 68,863
139 69,362
140 69,861
141 70,360
142 70,859
143 71,358
144 71,857
145 72,356
146 72,855
147 73,354
148 73,853
149 74,352
150 74,851
151 75,350
152 75,849
153 76,348
154 76,847
155 77,346
156 77,845
157 78,344
158 78,843
159 79,342
160 79,841
161 80,340
162 80,839
163 81,338
164 81,837
165 82,336
166 82,835
167 83,334
168 83,833
169 84,332
170 84,831
171 85,330
172 85,829
173 86,328
174 86,827
175 87,326
176 87,825
177 88,324
178 88,823
179 89,322
180 89,821
181 90,320
182 90,819
183 91,318
184 91,817
185 92,316
186 92,815
187 93,314
188 93,813
189 94,312
190 94,811
191 95,310
192 95,809
193 96,308
194 96,807
195 97,306
196 97,805
197 98,304
198 98,803
199 99,302
200 99,801
201 100,300
202 100,799
203 101,298
204 101,797
205 102,296
206 102,795
207 103,294
208 103,793
209 104,292
210 104,791
211 105,290
212 105,789
213 106,288
214 106,787
215 107,286
216 107,785
217 108,284
218 108,783
219 109,282
220 109,781
221 110,280
222 110,779
223 111,278
224 111,777
225 112,276
226 112,775
227 113,274
228 113,773
229 114,272
230 114,771
231 115,270
232 115,769
233 116,268
234 116,767
235 117,266
236 117,765
237 118,264
238 118,763
239 119,262
240 119,761
241 120,260
242 120,759
243 121,258
244 121,757
245 122,256
246 122,755
247 123,254
248 123,753
AU light seconds
249 124,252
250 124,751
251 125,250
252 125,749
253 126,248
254 126,747
255 127,246
256 127,745
257 128,244
258 128,743
259 129,242
260 129,741
261 130,240
262 130,739
263 131,238
264 131,737
265 132,236
266 132,735
267 133,234
268 133,733
269 134,232
270 134,731
271 135,230
272 135,729
273 136,228
274 136,727
275 137,226
276 137,725
277 138,224
278 138,723
279 139,222
280 139,721
281 140,220
282 140,719
283 141,218
284 141,717
285 142,216
286 142,715
287 143,214
288 143,713
289 144,212
290 144,711
291 145,210
292 145,709
293 146,208
294 146,707
295 147,206
296 147,705
297 148,204
298 148,703
299 149,202
300 149,701
305 152,196
310 154,691
315 157,187
320 159,682
325 162,177
330 164,672
335 167,167
340 169,662
345 172,157
350 174,652
355 177,147
360 179,642
365 182,137
370 184,632
375 187,127
380 189,622
385 192,117
390 194,612
395 197,107
400 199,602
405 202,097
410 204,592
415 207,087
420 209,582
425 212,077
430 214,572
435 217,067
440 219,562
445 222,057
450 224,552
455 227,047
460 229,542
465 232,037
470 234,532
475 237,027
480 239,522
485 242,017
490 244,512
495 247,007
500 249,502
505 251,997
510 254,492
515 256,987
520 259,482
525 261,978
530 264,473
535 266,968
540 269,463
545 271,958
550 274,453
555 276,948
560 279,443
565 281,938
570 284,433
575 286,928
580 289,423
585 291,918
590 294,413
595 296,908
600 299,403
605 301,898
610 304,393
615 306,888
620 309,383
625 311,878
630 314,373
635 316,868
640 319,363
645 321,858
650 324,353
655 326,848
660 329,343
665 331,838
670 334,333
675 336,828
680 339,323
685 341,818
690 344,313
695 346,808
700 349,303
705 351,798
710 354,293
715 356,788
720 359,283
725 361,778
730 364,273
735 366,769
740 369,264
745 371,759
750 374,254
AU light seconds
755 376,749
760 379,244
765 381,739
770 384,234
775 386,729
780 389,224
785 391,719
790 394,214
795 396,709
800 399,204
805 401,699
810 404,194
815 406,689
820 409,184
825 411,679
830 414,174
835 416,669
840 419,164
845 421,659
850 424,154
855 426,649
860 429,144
865 431,639
870 434,134
875 436,629
880 439,124
885 441,619
890 444,114
895 446,609
900 449,104
905 451,599
910 454,094
915 456,589
920 459,084
925 461,579
930 464,074
935 466,569
940 469,064
945 471,560
950 474,055
955 476,550
960 479,045
965 481,540
970 484,035
975 486,530
980 489,025
985 491,520
990 494,015
995 496,510
1,000 499,005
1,100 548,905
1,200 598,806
1,300 648,706
1,400 698,607
1,500 748,507
1,600 798,408
1,700 848,308
1,800 898,209
1,900 948,109
2,000 998,010
2,100 1,047,910
2,200 1,097,811
2,300 1,147,711
2,400 1,197,611
2,500 1,247,512
2,600 1,297,412
2,700 1,347,313
2,800 1,397,213
2,900 1,447,114
3,000 1,497,014
3,100 1,546,915
3,200 1,596,815
3,300 1,646,716
3,400 1,696,616
3,500 1,746,517
3,600 1,796,417
3,700 1,846,318
3,800 1,896,218
3,900 1,946,119
4,000 1,996,019
4,100 2,045,920
4,200 2,095,820
4,300 2,145,721
4,400 2,195,621
4,500 2,245,522
4,600 2,295,422
4,700 2,345,322
4,800 2,395,223
4,900 2,445,123
5,000 2,495,024
5,100 2,544,924
5,200 2,594,825
5,300 2,644,725
5,400 2,694,626
5,500 2,744,526
5,600 2,794,427
5,700 2,844,327
5,800 2,894,228
5,900 2,944,128
6,000 2,994,029
6,100 3,043,929
6,200 3,093,830
6,300 3,143,730
6,400 3,193,631
6,500 3,243,531
6,600 3,293,432
6,700 3,343,332
6,800 3,393,233
6,900 3,443,133
7,000 3,493,033
7,100 3,542,934
7,200 3,592,834
7,300 3,642,735
7,400 3,692,635
7,500 3,742,536
7,600 3,792,436
7,700 3,842,337
7,800 3,892,237
7,900 3,942,138
8,000 3,992,038
8,100 4,041,939
8,200 4,091,839
8,300 4,141,740
8,400 4,191,640
8,500 4,241,541
8,600 4,291,441
8,700 4,341,342
8,800 4,391,242
8,900 4,441,143
9,000 4,491,043
9,100 4,540,944
9,200 4,590,844
9,300 4,640,744
9,400 4,690,645
9,500 4,740,545
9,600 4,790,446
9,700 4,840,346
9,800 4,890,247
9,900 4,940,147
10,000 4,990,048