Weight & Mass Converter

Convert Between Metric & Imperial Weight Units

1 kilogram = 2.20462 pounds
1 ounce
28.35 grams
1 pound
453.6 grams
1 kilogram
2.205 pounds
1 stone
6.35 kg

Understanding Weight and Mass Measurements

Weight and mass measurements are essential in countless daily activities, from cooking and fitness tracking to shipping packages and scientific experiments. While technically mass (the amount of matter) and weight (the force of gravity on that mass) are different, we commonly use the terms interchangeably in everyday life.

The metric system uses grams and kilograms as its base units, with conversions based on powers of 10. One kilogram contains 1,000 grams, making calculations straightforward. The imperial system uses ounces and pounds, where 16 ounces equal one pound. Understanding both systems is crucial in our globalized world.

Common Applications

In cooking, recipes from different countries may use different units. American recipes often call for ounces and pounds, while European recipes use grams and kilograms. When tracking body weight, Americans typically use pounds while most other countries use kilograms. In shipping and logistics, both systems are commonly used depending on the destination.

Scientific and medical contexts almost exclusively use metric measurements for precision and standardization. Understanding these conversions allows you to follow international recipes accurately, track fitness goals regardless of which system your equipment uses, and communicate measurements effectively across different regions and industries.

Frequently Asked Questions

How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds. To convert kilograms to pounds, multiply the number of kilograms by 2.20462. For example, 5 kg = 5 × 2.20462 = 11.0231 pounds.
How do you convert ounces to grams?
To convert ounces to grams, multiply the number of ounces by 28.3495. One ounce equals approximately 28.3495 grams. For example, 8 ounces = 8 × 28.3495 = 226.796 grams.
What is the difference between mass and weight?
Mass is the amount of matter in an object and remains constant everywhere. Weight is the force of gravity acting on that mass and varies with location. On Earth, we often use these terms interchangeably in everyday conversation, but technically mass is measured in kilograms and weight in newtons.
How many grams are in a pound?
One pound equals approximately 453.592 grams. To convert pounds to grams, multiply the number of pounds by 453.592. For example, 2 pounds = 2 × 453.592 = 907.184 grams.
When should I use metric vs imperial weight measurements?
Use metric (grams, kilograms) in scientific contexts, most international recipes, and countries using the metric system. Use imperial (ounces, pounds) primarily in the United States for everyday measurements, cooking, and body weight. Many industries like shipping use both systems.