![]() ![]() It is currently defined based on the fixed numerical value of the Planck constant, h, which is equal to 6.62607015 × 10 -34 in the units of J Kilogramĭefinition: A kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). The UK also often uses both pounds and stones when describing body weight, where a stone is comprised of 14 pounds. ![]() Many versions of the pound existed in the past in the United Kingdom (UK), and although the UK largely uses the International System of Units, pounds are still used within certain contexts, such as labelling of packaged foods (by law the metric values must also be displayed). This convenience could be the reason that the system was more popular than other systems of the time that used 10, 12, or 15 subdivisions.Ĭurrent use: The pound as a unit of weight is widely used in the United States, often for measuring body weight. ![]() This prototype weight could be divided into 16 ounces, a number that had three even divisors (8, 4, 2). It is a system that was based on a physical standardized pound that used a prototype weight. It was updated to its current form in 1959. The avoirdupois system is a system that was commonly used in the 13 th century. History/origin: The pound descended from the Roman libra, and numerous different definitions of the pound were used throughout history prior to the international avoirdupois pound that is widely used today. The avoirdupois pound is equivalent to 16 avoirdupois ounces. The international avoirdupois pound (the common pound used today) is defined as exactly 0.45359237 kilograms. Overall, we were quite impressed with Conversion Calculator, and we think it's a great thing to have around whether you're building something, doing your science homework, or working with any other units of measurement that need conversion.Ĭonversion Calculator comes as a ZIP file and doesn't require installation at 913K, it's a great tool to keep on your USB drive.Definition: A pound (symbol: lb) is a unit of mass used in the imperial and US customary systems of measurement. A built-in Help file provides a thorough overview of the program's features. ![]() Conversion Calculator also lets users specify the maximum number of digits in a number as well as the number of decimal places. One thing we loved about Conversion Calculator was that it doesn't make users scroll through this monstrous dropdown to find the unit they're looking for there's also a small letter keypad, and users can click on the first letter of their unit to skip to it automatically in the list. We encountered quite a few units we'd never even heard of, although we did notice that common cooking measurements were absent if you need to know how many tablespoons are in a cup, this program can't help you. There are spaces for your source value and the conversion, a number pad (with keys for entering negatives and fractions), and two absolutely huge dropdown menus that contain the various units that the program can convert. The program's interface is quite plain it's not particularly attractive, but it is intuitive. It's not much to look at, but it may well be the most comprehensive conversion calculator we've ever seen. That's definitely the case with Conversion Calculator. Sometimes good things come in not-very-fancy packages. ![]()
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