Weight

What is a Kilogram? (kg)

Definition

The kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). Since 2019, it is defined by fixing the numerical value of the Planck constant. The kilogram is the primary unit for measuring body weight and mass in most countries that use the metric system.

Common Uses

  • › Body weight in metric countries
  • › Food and ingredient quantities
  • › Shipping and postal weights
  • › Scientific and laboratory mass

Converters

Kilograms to Pounds → Kilograms to Grams →

Key Facts

  • Symbol
    kg
  • Category
    Weight
  • 1 kg = 1,000 g
  • 1 kg ≈ 2.205 lbs
  • 1 kg ≈ 35.27 oz
  • 1,000 kg = 1 metric ton

Related Terms

About the Kilogram

The kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). Since 2019, it is defined by fixing the numerical value of the Planck constant. The kilogram is the primary unit for measuring body weight and mass in most countries that use the metric system.

Equivalents and conversions

  • 1 kg = 1,000 g
  • 1 kg ≈ 2.205 lbs
  • 1 kg ≈ 35.27 oz
  • 1,000 kg = 1 metric ton

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