Weight Converter
Convert between kilograms, pounds, ounces, grams, and other weight units instantly
Quick Examples
What is Weight Conversion?
Weight conversion is the process of changing a measurement from one unit of weight or mass to another. Different countries and industries use different measurement systems - the metric system (kilograms, grams) is used in most of the world, while the imperial system (pounds, ounces) is common in the United States.
Our weight converter makes it simple to convert between all common weight units instantly. Whether you're cooking with a recipe from another country, shipping packages internationally, tracking your fitness goals, or working on a science project, accurate weight conversion is essential.
Common Weight Conversions
Kilograms to Pounds
1 kilogram equals 2.20462 pounds. This is one of the most common conversions, especially for body weight and package shipping.
Pounds to Kilograms
1 pound equals 0.453592 kilograms. Essential for international travel, shipping, and understanding product weights.
Ounces to Grams
1 ounce equals 28.3495 grams. Commonly used in cooking, baking, and measuring precious metals or small items.
Grams to Ounces
1 gram equals 0.035274 ounces. Perfect for precise measurements in recipes, jewelry, and scientific applications.
Understanding Weight Units
Metric System
The metric system uses base-10 units, making conversions straightforward. The main units are:
- • Milligrams (mg): Used for very small weights, medications
- • Grams (g): Standard unit for food, small items
- • Kilograms (kg): Most common for body weight, packages
- • Metric Tons: Used for large cargo, vehicles
Imperial System
The imperial system is primarily used in the United States. Common units include:
- • Ounces (oz): Small items, cooking measurements
- • Pounds (lb): Body weight, groceries, packages
- • Stones (st): Used in UK for body weight
- • Tons: Large cargo, vehicles
Specialized Units
Some industries use specialized weight units:
- • Carats (ct): Gemstones and pearls (1 ct = 0.2 g)
- • Grains (gr): Bullets, arrows, precious metals
Frequently Asked Questions
How accurate is this weight converter?
Our converter uses official conversion factors and provides highly accurate results up to 8 decimal places. The conversions are based on internationally recognized standards.
What's the difference between mass and weight?
Mass is the amount of matter in an object (measured in kg, g, etc.), while weight is the force of gravity on that mass. For everyday purposes on Earth, we use these terms interchangeably, and this converter handles both mass and weight units.
Can I use this for cooking measurements?
Absolutely! This tool is perfect for converting recipe measurements between metric and imperial units. Convert grams to ounces, kilograms to pounds, and more for international recipes.
Is my data private?
Yes! All conversions happen directly in your browser using JavaScript. No data is sent to any server, ensuring complete privacy and security.
Why do I see so many decimal places?
We provide precise conversions with up to 8 decimal places for accuracy. Trailing zeros are automatically removed. For most everyday uses, you can round to 2-3 decimal places.