Weight Unit Converter

Overview

Weight is where bilingual paperwork goes wrong most often: the Chinese jin and liang on one side, pounds and ounces on the other, plus carats and grains for stones and powders. This converter is built on the kilogram and lists fourteen units on one table, with one jin at 0.5 kg, one liang at 50 g and one carat at 0.2 g, so a herbal prescription, a market price, a jewellery quote and a freight label can all be reconciled on a single screen. Pounds and ounces follow the avoirdupois system used for everyday goods. Grams and milligrams serve formulations while tonnes serve freight, so one shipment can legitimately span three orders of magnitude. The awkward case is precious metal: a dealer quotes troy ounces while a courier label quotes kilograms, and the two differ by about ten percent because the troy ounce is heavier than the grocery ounce. Jewellers add a second trap, quoting carats per stone while the invoice total is in grams, so the per-piece figure has to be summed before it can be compared with a shipping weight. Herbal prescriptions bring a third: a formula written in liang and qian must be converted to grams before a pharmacy scale can check it, and the qian is simply one tenth of a liang. Carat totals are usually summed before shipping.

Features

• Fourteen units in one view: kilogram, gram, milligram, tonne, jin, liang, pound, ounce, carat, stone, dram, grain, short ton, long ton
• Jin and liang use the Chinese market standard: one jin is 0.5 kg, one liang is 50 g
• Carat (0.2 g) and grain (64.79891 mg) cover gems, pearls and propellant weights
• US short ton (907.18474 kg) and UK long ton (1,016.0469088 kg) are listed separately
• Expression input such as 2*0.5 or 1/3, with zero to eight decimals
• Batch lines may carry a unit such as "3 jin" or "5 lb", exported to TXT or CSV

How to use

1. Enter a weight figure or expression, for example 1.5 or 2*0.5
2. Choose the source unit in kilograms, jin or pounds; leave the target empty to list everything
3. Read the headline figure and the fourteen-row table, adjusting decimals as needed
4. Press Swap to convert back, which cross-checks two figures on the same document
5. Paste several lines into the batch box, one record per line, then download TXT or export CSV

Notes

• Fourteen weight units run from kilogram, gram and milligram through jin, liang, pound, ounce and carat to stone, dram, grain and both tons, with the kilogram as the base and avoirdupois kept apart from troy.
• The avoirdupois pound is 453.59237 g and its ounce 28.349523125 g, while the troy ounce weighs 31.1034768 g, about 9.7 percent more, so precious metal quotes must use troy.
• Two market jin exist: 500 g with a 50 g liang on the mainland and 600 g with a 37.5 g liang in Taiwan, so recipes and herbal doses need the right one confirmed.
• The short ton is 907.18474 kg and the long ton 1,016.0469088 kg, roughly ten and 1.6 percent away from the tonne, so shipping contracts must say which ton they mean.
• Carat at 200 mg, grain at 64.79891 mg and dram at 1.7718451953125 g serve jewellery and pharmacy; CSV exports hold numbers only before a batch summary.
• The carat measures stones and pearls only, 200 mg, and has nothing to do with the K of gold purity
• The dram is one sixteenth of an avoirdupois ounce, 1.7718451953125 g, still seen in whisky recipes
• The stone is a British body-weight unit: fourteen pounds, or 6.35029318 kg