Jupiter masses (MJ)

The Jupiter mass, about 1.9 × 10²⁷ kg or 318 Earth masses, is the standard unit for giant exoplanets and brown dwarfs.

Convert Jupiter masses to any weight unit

1 Jupiter mass = 1.89813 × 1027 kilograms

Quick facts

Unit
Jupiter mass (plural: Jupiter masses)
Symbol
MJ
Measures
Mass / Weight
System
Astronomical
Equals
1.89813 × 1027 kilograms
Definition
1.89813 × 10²⁷ kg.

1 Jupiter mass in other units

Kilograms1.89813 × 1027 kg
Pounds4.1846603 × 1027 lb
Grams1.89813 × 1030 g
Ounces6.6954565 × 1028 oz
Milligrams1.89813 × 1033 mg
Tonnes1.89813 × 1024 t
Short tons2.0923302 × 1024 ton
Stone2.9890431 × 1026 st

What is a Jupiter mass?

The Jupiter mass, about 1.9 × 10²⁷ kg or 318 Earth masses, is the standard unit for giant exoplanets and brown dwarfs.

Where the Jupiter mass sits among weight units

The Jupiter mass is number 174 of 175 on our scale of weight units, ordered from smallest to largest.

Tonne1 MJ = 1.89813 × 1024 t Long ton1 MJ = 1.868152 × 1024 LT Kilotonne1 MJ = 1.89813 × 1021 kt Earth mass1 MJ = 317.828 M⊕ Jupiter massthis unit Solar mass1 M☉ = 1,047.59 MJ

What Jupiter masses are used for

  • Masses of exoplanets and brown dwarfs.
  • Planet formation research.

Jupiter masses in real life

  • Brown dwarfs range from about 13 to 80 Jupiter masses.
  • The Sun is about 1,048 Jupiter masses.
  • Jupiter is 318 times the mass of the Earth.

One Jupiter mass is about as heavy as 318 Earths.

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Convert to Jupiter masses

Frequently asked questions

What is a Jupiter mass?

The Jupiter mass, about 1.9 × 10²⁷ kg or 318 Earth masses, is the standard unit for giant exoplanets and brown dwarfs.

How is the Jupiter mass defined?

1.89813 × 10²⁷ kg.

How many kilograms are in a Jupiter mass?

One Jupiter mass equals 1.89813e27 kilograms.

How many pounds are in a Jupiter mass?

One Jupiter mass equals 4.1846603e27 pounds.

How many grams are in a Jupiter mass?

One Jupiter mass equals 1.89813e30 grams.