Mass Unit Converter

Mass converter

Enter a value and choose desired mass units.

1 digits2 digits3 digits5 digits7 digits10 digits15 digits

kg (kilogram)ng (nanogram)µg (microgram)mg (milligram)g (gram)t (tonne)gr (grain)dr (dram)oz (ounce)lb (pound)stoneshort ton (US)long ton (UK)slugct (carat)Da or u or amu (dalton)kDa (kilodalton)MDa (megadalton)me (mass of electron)mp (mass of proton)mn (mass of neutron)eV/c² (electronvolt)keV/c² (electronvolt)MeV/c² (electronvolt)Earth's mass☉ (solar mass)

List of units

List of the units with their symbols used in the converter are as follows:

Mass conversion

kilogram to gram

1 kg = 1 × 10³ g

gram to milligram, microgram, nanogram

1 g = 1 ×10³ mg = 1 ×10⁶ µg = 1 ×10⁹ ng

tonne to kilogram

1 t = 1 × 10³ kg

pound to kilogram

1 lb = 0.453 592 37 kg

pound to ounce, dram, grain

1 lb = 16 oz = 256 dr = 7000 gr

stone to pound

1 stone = 14 lb

long ton to pound

1 LT = 2240 lb

short ton to pound

1 ST = 2000 lb

slug to pound

1 slug ≈ 14.593 902 9 kg lb

carat to milligram

1 ct = 200 mg

dalton to kilogram

1 = 1.660 539 066 60(50) × 10⁻²⁷

dalton to kilodalton, megadalton

1 Da = 1 × 10⁻³ kDa = 1 × 10⁻⁶ MDa

electron rest mass

m_e = 9.109 383 701 5(28) × 10⁻³¹

mass of proton

m_p = 1.672 621 923 69(51) × 10⁻²⁷ kg

mass of neutron

m_n = 1.674 927 498 04(95) × 10⁻²⁷ kg

electronvolt

1 eV/c² ≈ 1.782 661 92 ×10⁻³⁶ kg

electronvolt to kiloelectronvolt, megaelectronvolt

1 eV/c² = 1 × 10⁻³ keV/c² = 1 × 10⁻⁶ MeV/c²

Earth's mass

m_Earth ≈ 5.972 37 × 10²⁴ kg

solar mass

m_☉ = (1.98847 ± 0.00007) × 10³⁰ kg

Associated articles

• Pressure unit converter
• Temperature unit converter
• Volume unit converter