planet

mass (kg)

radius (km)

mean density (kg/m³)

surface gravity (m/s²)

Mercury

3.30 x 10²³

2,440

5,430

3.7

Venus

4.87 x 10²⁴

6,050

5,250

8.9

Earth

5.98 x 10²⁴

6,370

5,520

9.8

Mars

6.42 x 10²³

3,400

3,930

3.7

Jupiter

1.90 x 10²⁷

71,490

1,330

23.1

Saturn

5.69 x 10²⁶

60,270

710

9.0

Uranus

8.68 x 10²⁵

25,560

1,240

7.8

Neptune

1.02 x 10²⁶

24,760

1,670

11.0

Pluto

1.36 x 10²²

1,120

2,000

0.1