Weight Converter
Convert between 6 different units of weight instantly.
Frequently Asked Questions
What's the difference between weight and mass?
Weight is the force of gravity acting on an object and varies by location, while mass is the amount of matter in an object and remains constant. In everyday usage, "weight" and "mass" are often used interchangeably, though technically they're different. This converter works with both concepts.
Why do some countries use stones for weight?
The stone is primarily used in the United Kingdom and Ireland for measuring body weight and some commodities. One stone equals 14 pounds. It's part of the Imperial measurement system that developed historically in Britain.
What is avoirdupois weight?
Avoirdupois is the system of weight commonly used in English-speaking countries for everyday items, trade, and body weight. It's based on 16 ounces to a pound. There are other weight systems like troy weight (used for precious metals) and apothecaries' weight (historical medicine measurements).
How many metric tons are in a kilogram?
One metric ton (also called a tonne) equals exactly 1,000 kilograms. A metric ton is used internationally for measuring large quantities like cargo, fuel, or raw materials.
Is a metric ton the same as a ton?
No. A metric ton (tonne) equals 1,000 kilograms, while a short ton (US ton) equals 2,000 pounds (907.185 kg), and a long ton (UK ton) equals 2,240 pounds (1,016 kg). Always verify which ton is being referenced in your context.