Weight Converter
Convert weight and mass between pounds, kilograms, ounces, grams, and more.
Frequently Asked Questions
How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds. This is one of the most commonly needed conversions, especially for body weight, shipping, and cooking. The United States uses pounds while most countries use kilograms. A quick way to estimate is to multiply kilograms by 2.2 for pounds, or divide pounds by 2.2 for kilograms. Medical records, gym equipment, and food labels often require this conversion for international users.
What is the difference between mass and weight?
Mass is the amount of matter in an object and is measured in kilograms or grams. Weight is the force exerted by gravity on that mass and varies depending on location. On the Moon, your mass stays the same, but your weight is about one-sixth of what it is on Earth. In everyday use, people often use "weight" and "mass" interchangeably, but in science and physics, the distinction is important and precise.
How do I convert ounces to grams?
One ounce equals approximately 28.3495 grams. This conversion is especially common in cooking and baking, where American recipes use ounces and international recipes use grams. For quick estimation, you can multiply ounces by 28.35 to get grams, or divide grams by 28.35 to get ounces. Postal and shipping services also frequently use both units, making this a practical conversion for everyday tasks beyond just the kitchen.