Astronomical Unit (AU) Converter & Solar System Scale

Celestial Body	Semi-Major Axis (AU)	Perihelion - Aphelion	Orbital Period	Light Time from Sun
Mercury	0.387 AU	0.31 - 0.47 AU	0.24 yrs	3.2 mins
Venus	0.723 AU	0.72 - 0.73 AU	0.61 yrs	6.0 mins
Earth	1.000 AU	0.98 - 1.02 AU	1.00 yrs	8.3 mins
Mars	1.524 AU	1.38 - 1.67 AU	1.88 yrs	12.7 mins
Ceres (Asteroid Belt)	2.767 AU	2.56 - 2.98 AU	4.60 yrs	23.0 mins
Jupiter	5.204 AU	4.95 - 5.46 AU	11.86 yrs	43.3 mins
Saturn	9.582 AU	9.04 - 10.12 AU	29.46 yrs	1.33 hours
Uranus	19.201 AU	18.29 - 20.10 AU	84.01 yrs	2.66 hours
Neptune	30.047 AU	29.81 - 30.33 AU	164.79 yrs	4.16 hours
Pluto	39.482 AU	29.66 - 49.30 AU	247.94 yrs	5.47 hours
Kuiper Belt (Classical)	45.000 AU	40.00 - 50.00 AU	301.80 yrs	6.24 hours
Voyager 1 Location	163.500 AU	163.50 - 163.50 AU	N/A	22.66 hours
Sedna (Inner Oort Cloud)	506.000 AU	76.00 - 936.00 AU	11390.00 yrs	70.12 hours
Oort Cloud (Inner Limit)	2000.000 AU	2000.00 - 5000.00 AU	89442.00 yrs	277.17 hours

Celestial Body

Semi-Major Axis (AU)

Perihelion - Aphelion

Orbital Period

Light Time from Sun

Mercury

0.387 AU

0.31 - 0.47 AU

0.24 yrs

3.2 mins

Venus

0.723 AU

0.72 - 0.73 AU

0.61 yrs

6.0 mins

Earth

1.000 AU

0.98 - 1.02 AU

1.00 yrs

8.3 mins

Mars

1.524 AU

1.38 - 1.67 AU

1.88 yrs

12.7 mins

Ceres (Asteroid Belt)

2.767 AU

2.56 - 2.98 AU

4.60 yrs

23.0 mins

Jupiter

5.204 AU

4.95 - 5.46 AU

11.86 yrs

43.3 mins

Saturn

9.582 AU

9.04 - 10.12 AU

29.46 yrs

1.33 hours

Uranus

19.201 AU

18.29 - 20.10 AU

84.01 yrs

2.66 hours

Neptune

30.047 AU

29.81 - 30.33 AU

164.79 yrs

4.16 hours

Pluto

39.482 AU

29.66 - 49.30 AU

247.94 yrs

5.47 hours

Kuiper Belt (Classical)

45.000 AU

40.00 - 50.00 AU

301.80 yrs

6.24 hours

Voyager 1 Location

163.500 AU

163.50 - 163.50 AU

N/A

22.66 hours

Sedna (Inner Oort Cloud)

506.000 AU

76.00 - 936.00 AU

11390.00 yrs

70.12 hours

Oort Cloud (Inner Limit)

2000.000 AU

2000.00 - 5000.00 AU

89442.00 yrs

277.17 hours

About Astronomical Unit (AU) Converter & Solar System Scale

Specialized Astronomical Unit (AU) converter and Solar System scale modeler. Converts AU to kilometers, miles, and photon travel minutes, with a comprehensive planetary distance matrix comparing Mercury, Venus, Earth, Mars, the Asteroid Belt, Jupiter, Saturn, Uranus, Neptune, Pluto, and the Kuiper Belt.

Key Capabilities & Features

Exact IAU 2012 standard conversion: 1 AU = 149,597,870.7 kilometers
Solar System planetary benchmark matrix with semi-major axes, perihelion, and aphelion
Solar photon light travel time calculator for each orbital position
Interactive comparative ratio solver showing distance multiples relative to Earth and outer planets