The kilogram or kilogramme (SI unit symbol: kg) is the base unit of mass in the International System of Units (SI) (the Metric system) and is defined as being equal to the mass of the International Prototype of the Kilogram (IPK, also known as "Le Grand K" or "Big K").
| Definition | Relation to SI units |
|---|---|
≡ mass of the prototype near Paris (≈ mass of 1 L of water) |
| troy pound | petagram | short hundredweight | milligram | tonne | yottagram | stone | femtogram |
|---|---|---|---|---|---|---|---|
| 1 | 3.732417216 × 10-13 | 0.0082286 | 373,241.7216 | 0.0003732 | 3.732417216 × 10-22 | 0.0587755 | 3.732417216 × 1017 |
| 2 679 228 880 719 | 1 | 22,046,226,218.488 | 1.0 × 1018 | 1 000 000 000 | 1.0 × 10-9 | 157,473,044,417.77 | 1.0 × 1030 |
| 121.5277778 | 4.5359237 × 10-11 | 1 | 45 359 237 | 0.0453592 | 4.5359237 × 10-20 | 7.1428571 | 4.5359237 × 1019 |
| 2.679228880719 × 10-6 | 1.0 × 10-18 | 2.2046226218488 × 10-8 | 1 | 1.0 × 10-9 | 1.0 × 10-27 | 1.5747304441777 × 10-7 | 1 000 000 000 000 |
| 2,679.2288807 | 1.0 × 10-9 | 22.0462262 | 1 000 000 000 | 1 | 1.0 × 10-18 | 157.4730444 | 1.0 × 1021 |
| 2.679228880719 × 1021 | 1 000 000 000 | 2.2046226218488 × 1019 | 1.0 × 1027 | 1.0 × 1018 | 1 | 1.5747304441777 × 1020 | 1.0 × 1039 |
| 17.0138889 | 6.35029318 × 10-12 | 0.14 | 6,350,293.18 | 0.0063503 | 6.35029318 × 10-21 | 1 | 6.35029318 × 1018 |
| 2.679228880719 × 10-18 | 1.0 × 10-30 | 2.2046226218488 × 10-20 | 1.0 × 10-12 | 1.0 × 10-21 | 1.0 × 10-39 | 1.5747304441777 × 10-19 | 1 |
| Symbol | Definition |
|---|---|
| ≡ | exactly equal |
| ≈ | approximately equal to |
| = | equal to |
| digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
| 1 kilograms | = 1 kilograms |
| 2.5 kilograms | = 2.5 kilograms |
| 4 kilograms | = 4 kilograms |
| 5.5 kilograms | = 5.5 kilograms |
| 7 kilograms | = 7 kilograms |
| 8.5 kilograms | = 8.5 kilograms |
| 10 kilograms | = 10 kilograms |
You can find the conversion in other languages in the following: