Convert 1 Light Year to Astronomical Units

How far is 1 light year? How long is 1 light year in astronomical units? 1 ly to AU conversion.

Amount

From

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1 Light Year ≈

63,241.077 Astronomical Units

result rounded

Decimal places

Result in Plain English

1 light year is equal to about 63.2 thousand astronomical units.

In Scientific Notation

1 light year

= 1 x 10⁰ light years

≈ 6.32411 x 10⁴ astronomical units

Light Years

A light year is the distance that light travels in one year. The year used by the International Astronomical Union is 365.25 days. A light year is defined as exactly 9,460,730,472,580.8 kilometers.

Astronomical Units

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.

Light Years to Astronomical Units Conversions

results may be rounded

Light years	AU
1.00	63,241
1.01	63,873
1.02	64,506
1.03	65,138
1.04	65,771
1.05	66,403
1.06	67,036
1.07	67,668
1.08	68,300
1.09	68,933
1.10	69,565
1.11	70,198
1.12	70,830
1.13	71,462
1.14	72,095
1.15	72,727
1.16	73,360
1.17	73,992
1.18	74,624
1.19	75,257
1.20	75,889
1.21	76,522
1.22	77,154
1.23	77,787
1.24	78,419
1.25	79,051
1.26	79,684
1.27	80,316
1.28	80,949
1.29	81,581
1.30	82,213
1.31	82,846
1.32	83,478
1.33	84,111

Light years	AU
1.34	84,743
1.35	85,375
1.36	86,008
1.37	86,640
1.38	87,273
1.39	87,905
1.40	88,538
1.41	89,170
1.42	89,802
1.43	90,435
1.44	91,067
1.45	91,700
1.46	92,332
1.47	92,964
1.48	93,597
1.49	94,229
1.50	94,862
1.51	95,494
1.52	96,126
1.53	96,759
1.54	97,391
1.55	98,024
1.56	98,656
1.57	99,288
1.58	99,921
1.59	100,550
1.60	101,190
1.61	101,820
1.62	102,450
1.63	103,080
1.64	103,720
1.65	104,350
1.66	104,980
1.67	105,610

Light years	AU
1.68	106,250
1.69	106,880
1.70	107,510
1.71	108,140
1.72	108,770
1.73	109,410
1.74	110,040
1.75	110,670
1.76	111,300
1.77	111,940
1.78	112,570
1.79	113,200
1.80	113,830
1.81	114,470
1.82	115,100
1.83	115,730
1.84	116,360
1.85	117,000
1.86	117,630
1.87	118,260
1.88	118,890
1.89	119,530
1.90	120,160
1.91	120,790
1.92	121,420
1.93	122,060
1.94	122,690
1.95	123,320
1.96	123,950
1.97	124,580
1.98	125,220
1.99	125,850

Convert 1 Light Year to Astronomical Units

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