Convert kg to g

킬로그램

정의
The kilogram (kg) serves as the primary unit of mass in the International System of Units (SI). Since May 2019, it’s defined by fixing Planck’s constant (h = 6.62607015 × 10⁻³⁴ J·s), with the metre and second tied to the speed of light and the cesium-133 transition. Although the reference method changed, one kilogram remains exactly the same mass worldwide.

Origin & Evolution
"킬로그램"은 프랑스어에서 유래했습니다. 킬로그램그리스어 결합 킬로 ("천")과 라틴어 문법 (“small weight”). Originally (1794), it was based on the mass of one litre of water at freezing point. Later, a platinum-iridium cylinder stored in France became the standard until minute drifts prompted the 2019 switch to a fundamental-constant definition.

Today’s Usage
As the SI’s base mass unit, the kilogram underlies nearly every professional and commercial measurement—from manufacturing and science to international trade. In everyday life, most countries use kilograms for groceries, shipping, and personal weight, although the U.S. still often pairs them with customary units.

그램

정의
A gram (g) is defined as one-thousandth of a kilogram. Inheriting the kilogram’s constants-based definition, one gram equals exactly 0.001 kg, ensuring consistent precision without dependence on a physical artifact.

Origin & Evolution
The concept of a gram began as the mass of one cubic centimetre of water at 4 °C within the old CGS framework. When SI adopted the kilogram as its base, the gram was simply redefined as 0.001 kg, preserving its historical ratio.

Today’s Usage
Grams are indispensable in cooking (weighing ingredients), nutrition labeling (per 100 g), laboratory analysis, and packaging worldwide.

Kilogram → Gram Conversion Table

변환하는 방법

• 1kg = 1000g

• 1g = 0.001kg

예

To convert 15 kg to grams:

15 kg × 1000 = 15000 g