Kilogram (kg)
Definition: The kilogram (kg) is the SI base unit of mass, defined in terms of the Planck constant. It is the standard for measuring weight and mass globally in science, industry, and daily life, ensuring consistency and precision in various applications.
History: The kilogram was originally defined in 1795 as the mass of one liter of water at 4°C. In 1889, a platinum-iridium cylinder was designated as the International Prototype Kilogram. Due to minor fluctuations in its mass, the definition was revised in 2019 to be based on the Planck constant (6.62607015 × 10⁻³⁴ m²kg/s), making it independent of any physical object and ensuring long-term precision.
Current Use: The kilogram is widely used in global trade, industry, and scientific research. It serves as the foundation for measuring mass across multiple fields, from food and medicine to physics and engineering, ensuring standardization in both commercial and scientific settings.
Ounce (oz)
Definition: The ounce (oz) is a unit of weight in the avoirdupois system, where one ounce is defined as 1/16th of a pound, or approximately 28.3495 grams. It is used for measuring small weights, particularly in food, jewelry, and postal services.
History: The ounce originates from the Roman uncia, which was 1/12 of a libra (pound). The system evolved in medieval England, leading to the modern avoirdupois system in 16th-century Britain, where 16 ounces make up one pound. Despite metrication, the ounce remains in widespread use in some countries.
Current Use: Ounces are commonly used for food packaging, precious metals (like gold and silver in troy ounces), and postal weights. They also appear in personal weight measurement and recipes, especially in countries that use the imperial system.
Quick Conversion Table Kilogram (kg) to Ounce (oz)
1 Kilogram (kg) equal to 35.2739658 Ounce (oz)
5 Kilogram (kg) equal to 176.3698292 Ounce (oz)
10 Kilogram (kg) equal to 352.7396584 Ounce (oz)
20 Kilogram (kg) equal to 705.4793168 Ounce (oz)
30 Kilogram (kg) equal to 1,058.2189751 Ounce (oz)
50 Kilogram (kg) equal to 1,763.6982919 Ounce (oz)
75 Kilogram (kg) equal to 2,645.5474378 Ounce (oz)
100 Kilogram (kg) equal to 3,527.3965838 Ounce (oz)