Convert 18 Light Years to Astronomical Units

How far is 18 light years? How long is 18 light years in astronomical units? 18 ly to AU conversion.

Amount

From

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18 Light Years ≈

1,138,339.4 Astronomical Units

result rounded

Decimal places

Result in Plain English

18 light years is equal to about 1.14 million astronomical units.

In Scientific Notation

18 light years

= 1.8 x 10¹ light years

≈ 1.13834 x 10⁶ 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
18.00	1,138,300
18.01	1,139,000
18.02	1,139,600
18.03	1,140,200
18.04	1,140,900
18.05	1,141,500
18.06	1,142,100
18.07	1,142,800
18.08	1,143,400
18.09	1,144,000
18.10	1,144,700
18.11	1,145,300
18.12	1,145,900
18.13	1,146,600
18.14	1,147,200
18.15	1,147,800
18.16	1,148,500
18.17	1,149,100
18.18	1,149,700
18.19	1,150,400
18.20	1,151,000
18.21	1,151,600
18.22	1,152,300
18.23	1,152,900
18.24	1,153,500
18.25	1,154,100
18.26	1,154,800
18.27	1,155,400
18.28	1,156,000
18.29	1,156,700
18.30	1,157,300
18.31	1,157,900
18.32	1,158,600
18.33	1,159,200

Light years	AU
18.34	1,159,800
18.35	1,160,500
18.36	1,161,100
18.37	1,161,700
18.38	1,162,400
18.39	1,163,000
18.40	1,163,600
18.41	1,164,300
18.42	1,164,900
18.43	1,165,500
18.44	1,166,200
18.45	1,166,800
18.46	1,167,400
18.47	1,168,100
18.48	1,168,700
18.49	1,169,300
18.50	1,170,000
18.51	1,170,600
18.52	1,171,200
18.53	1,171,900
18.54	1,172,500
18.55	1,173,100
18.56	1,173,800
18.57	1,174,400
18.58	1,175,000
18.59	1,175,700
18.60	1,176,300
18.61	1,176,900
18.62	1,177,500
18.63	1,178,200
18.64	1,178,800
18.65	1,179,400
18.66	1,180,100
18.67	1,180,700

Light years	AU
18.68	1,181,300
18.69	1,182,000
18.70	1,182,600
18.71	1,183,200
18.72	1,183,900
18.73	1,184,500
18.74	1,185,100
18.75	1,185,800
18.76	1,186,400
18.77	1,187,000
18.78	1,187,700
18.79	1,188,300
18.80	1,188,900
18.81	1,189,600
18.82	1,190,200
18.83	1,190,800
18.84	1,191,500
18.85	1,192,100
18.86	1,192,700
18.87	1,193,400
18.88	1,194,000
18.89	1,194,600
18.90	1,195,300
18.91	1,195,900
18.92	1,196,500
18.93	1,197,200
18.94	1,197,800
18.95	1,198,400
18.96	1,199,100
18.97	1,199,700
18.98	1,200,300
18.99	1,200,900

Convert 18 Light Years to Astronomical Units

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