Unit definitions

Kilogram

The kilogram is the SI base unit of mass. Since the 2019 redefinition of the SI base units, it is defined by using the fixed numerical value of the Planck's constant ($h$) to be $6.626\,070\,15 \times 10^{-34} \ \text{J}\text{s}$. $$h = 6.626\,070\,15 \times 10^{-34} \ \text{J}\text{s}$$ $$h = 6.626\,070\,15 \times 10^{-34} \ \text{kg}\text{m}^2\text{s}^{-2}\cdot\text{s}$$ $$h = 6.626\,070\,15 \times 10^{-34} \ \text{kg}\text{m}^2\text{s}^{-1}$$ Therefore, $$1 \ \text{kg} = \frac{h}{6.626\,070\,15 \times 10^{-34} \ \text{m}^2\text{s}^{-1}}$$ $$1 \ \text{kg} = \frac{h}{6.626\,070\,15 \times 10^{-34}} \ \text{m}^{-2} \text{s}$$

Gram

$\frac{1}{10^{3}}$ of a kilogram is a gram.

Milligram

$\frac{1}{10^{6}}$ of a kilogram is a milligram.

Carat

$\frac{2}{10}$ of a gram is a carat. It is used to measure the mass of gemstones.

Ton (UK)

$2\,240$ pounds is a ton (UK). It is also known as the long ton.

Metric ton

$1\,000$ kilograms is a metric ton.

Ton (US)

$2\,000$ pounds is a ton (US). It is also known as the short ton.

Pound

$453.592\,37$ grams is a pound. It is also known as the avoirdupois pound.

Ounce

$\frac{1}{16}$ of a pound is an ounce. It is also known as the avoirdupois ounce.

Troy ounce

The troy ounce is the standard unit of mass for precious metals. It is equal to $31.103\,476\,8$ grams.

Stone

The stone is an imperial unit of mass equal to $14$ avoirdupois pounds or $6.350\,293\,18$ kilograms.

Hectogram

$10^{2}$ grams is a hectogram.

Decagram

$10^{1}$ grams is a decagram.

Decigram

$\frac{1}{10^{1}}$ of a gram is a decigram.

Centigram

$\frac{1}{10^{2}}$ of a gram is a centigram.

Microgram

$\frac{1}{10^{6}}$ of a gram is a microgram.

Nanogram

$\frac{1}{10^{9}}$ of a gram is a nanogram.

Picogram

$\frac{1}{10^{12}}$ of a gram is a picogram.

Femtogram

$\frac{1}{10^{15}}$ of a gram is a femtogram.

Attogram

$\frac{1}{10^{18}}$ of a gram is a attogram.

Zeptogram

$\frac{1}{10^{21}}$ of a gram is a zeptogram.

Yoctogram

$\frac{1}{10^{24}}$ of a gram is a yoctogram.

Rontogram

$\frac{1}{10^{27}}$ of a gram is a rontogram.

Quectogram

$\frac{1}{10^{30}}$ of a gram is a quectogram.

Convert Kilogram to other Mass units

Convert Kilogram to other Mass units

Kilogram [kg]	Other unit
1	1E+18 Femtogram [fg]
1	1E+2 Decagram [dag]
1	0.157473 Stone [st]
1	1E+15 Picogram [pg]
1	1E+5 Centigram [cg]
1	0.001102 Ton (US) [ton (us)]
1	0.000984 Ton (UK) [ton (uk)]
1	0.001 Metric ton [t]
1	1E+6 Milligram [mg]
1	1E+24 Zeptogram [zg]
1	1E+12 Nanogram [ng]
1	32.150747 Troy ounce [oz t]
1	1E+27 Yoctogram [yg]
1	35.273962 Ounce [oz]
1	1E+1 Hectogram [hg]
1	1E+21 Attogram [ag]
1	1E+4 Decigram [dg]
1	1E+30 Rontogram [rg]
1	1E+3 Gram [g]
1	1E+33 Quectogram [qg]
1	5E+3 Carat [ct]
1	2.204623 Pound [lb]
1	1E+9 Microgram [μg]