Weight Converter - Lab-Grade Accuracy | Unitconvr

Convert kg, lbs, oz with high accuracy. Real-time results, privacy-first, 7 languages.

From

Enter value

To

Result

0

Common Conversions

1 = 1

5 = 5

10 = 10

50 = 50

100 = 100

1000 = 1,000

ISO/NIST Standards•15-digit precision

Popular Conversions

210 converters available

kilogrammilligram

kilogrammicrogram

Understanding Weight Conversions

Weight conversions are critical for shipping, cooking, fitness, and commerce. Kilograms are the global standard, while pounds are used in the US. Understanding both systems helps in international trade and travel.

💡 Quick reference: 1 kg ≈ 2.2 lbs, 1 oz ≈ 28 grams

Frequently Asked Questions

What is the difference between mass and weight?

Mass measures the amount of matter in an object and remains constant. Weight is the force of gravity on that mass and can vary by location. On Earth, we commonly use weight and mass interchangeably, but in scientific contexts, mass is measured in kilograms and weight in Newtons.

How do I convert kilograms to pounds for shipping?

Multiply kilograms by 2.20462 to get pounds. For shipping, always round up to the nearest pound or kilogram as carriers often charge by whole units. International shipping typically requires weight in kilograms.

What is the difference between troy and regular ounces?

Troy ounces (31.1g) are used for precious metals like gold and silver. Regular (avoirdupois) ounces (28.35g) are used for most other weights. This means a troy ounce is about 10% heavier than a regular ounce.

Why do some countries use stones for body weight?

The stone (14 pounds) is traditionally used in the UK and Ireland for body weight. It provides a convenient middle unit between pounds and larger measurements. One stone = 6.35 kilograms.

How accurate are kitchen scale measurements?

Consumer kitchen scales typically have accuracy of ±1-2 grams. For precise baking, use a scale rather than volume measurements. Professional scales can achieve accuracy to 0.01 grams for applications like coffee brewing or jewelry making.

Popular Converters

Most Used

kilogram → poundFeatured

1 kilogram = 2.2046 pound

pound → kilogramFeatured

1 pound = 0.453593 kilogram

1 gram = 0.035274 ounce

1 ounce = 28.3495 gram

All Converters

kilogram → stone stone → kilogram ton → pound pound → ton kilogram → gram kilogram → milligram kilogram → microgram kilogram → ton kilogram → metric ton kilogram → ounce kilogram → grain kilogram → carat kilogram → pennyweight kilogram → troy ounce kilogram → troy pound kilogram → long ton gram → kilogram gram → milligram gram → microgram gram → ton gram → metric ton gram → pound gram → stone gram → grain gram → carat gram → pennyweight gram → troy ounce gram → troy pound gram → long ton milligram → kilogram milligram → gram milligram → microgram milligram → ton milligram → metric ton milligram → pound milligram → ounce milligram → stone milligram → grain milligram → carat milligram → pennyweight milligram → troy ounce milligram → troy pound milligram → long ton microgram → kilogram microgram → gram microgram → milligram microgram → ton microgram → metric ton microgram → pound microgram → ounce microgram → stone microgram → grain microgram → carat microgram → pennyweight microgram → troy ounce microgram → troy pound microgram → long ton ton → kilogram ton → gram ton → milligram ton → microgram ton → metric ton ton → ounce ton → stone ton → grain ton → carat ton → pennyweight ton → troy ounce ton → troy pound ton → long ton metric ton → kilogram metric ton → gram metric ton → milligram metric ton → microgram metric ton → ton metric ton → pound metric ton → ounce metric ton → stone metric ton → grain metric ton → carat metric ton → pennyweight metric ton → troy ounce metric ton → troy pound metric ton → long ton pound → gram pound → milligram pound → microgram pound → metric ton pound → ounce pound → stone pound → grain pound → carat pound → pennyweight pound → troy ounce pound → troy pound pound → long ton ounce → kilogram ounce → milligram ounce → microgram ounce → ton ounce → metric ton ounce → pound ounce → stone ounce → grain ounce → carat ounce → pennyweight ounce → troy ounce ounce → troy pound ounce → long ton stone → gram stone → milligram stone → microgram stone → ton stone → metric ton stone → pound stone → ounce stone → grain stone → carat stone → pennyweight stone → troy ounce stone → troy pound stone → long ton grain → kilogram grain → gram grain → milligram grain → microgram grain → ton grain → metric ton grain → pound grain → ounce grain → stone grain → carat grain → pennyweight grain → troy ounce grain → troy pound grain → long ton carat → kilogram carat → gram carat → milligram carat → microgram carat → ton carat → metric ton carat → pound carat → ounce carat → stone carat → grain carat → pennyweight carat → troy ounce carat → troy pound carat → long ton pennyweight → kilogram pennyweight → gram pennyweight → milligram pennyweight → microgram pennyweight → ton pennyweight → metric ton pennyweight → pound pennyweight → ounce pennyweight → stone pennyweight → grain pennyweight → carat pennyweight → troy ounce pennyweight → troy pound pennyweight → long ton troy ounce → kilogram troy ounce → gram troy ounce → milligram troy ounce → microgram troy ounce → ton troy ounce → metric ton troy ounce → pound troy ounce → ounce troy ounce → stone troy ounce → grain troy ounce → carat troy ounce → pennyweight troy ounce → troy pound troy ounce → long ton troy pound → kilogram troy pound → gram troy pound → milligram troy pound → microgram troy pound → ton troy pound → metric ton troy pound → pound troy pound → ounce troy pound → stone troy pound → grain troy pound → carat troy pound → pennyweight troy pound → troy ounce troy pound → long ton long ton → kilogram long ton → gram long ton → milligram long ton → microgram long ton → ton long ton → metric ton long ton → pound long ton → ounce long ton → stone long ton → grain long ton → carat long ton → pennyweight long ton → troy ounce long ton → troy pound

Browse our collection of 210 Weight converters. Each converter provides instant, accurate results for professional and academic use.