Weight converter

Example

1 lb

kg   0.45359237
g    453.59237
oz   16
jin  0.90718474

The ounce row is the avoirdupois ounce, not the troy ounce used for precious metals.

Technical details & limits

Conversions run through the kilogram. The pound uses its defined value of 0.45359237 kilogram, the ounce is one sixteenth of a pound, and the jin is 500 grams. These are masses and do not depend on local gravity.

About this tool

Enter a value and pick its unit to get every other mass unit at once: metric from tonne to microgram, the British long ton, American short ton, stone, pound and ounce, the carat, and the Chinese dan, jin and liang. These are masses, so they do not change with local gravity.

Use cases

• Convert pounds and ounces on an overseas product page into kilograms and grams.
• Turn jin and liang in a recipe into grams.
• Check the difference between long tons, short tons and tonnes on a shipping document.

How to use

1. Type a number. Decimals and scientific notation such as 1.5e3 are accepted.
2. Pick the unit the value is in and the unit you want it in. The ⇄ button swaps the two.
3. The summary line gives the target unit; the table below lists every metric, imperial and Chinese mass unit at the same time.
4. Adjust the significant digits for a shorter or longer number. The conversion itself always runs at full precision.

Notes

Jin uses the current conversion of 500 grams. The British long ton and the American short ton are different quantities, so confirm which one a document means when it only says “ton”. The ounce here is the avoirdupois ounce; the troy ounce used for precious metals is not listed.

FAQ

How many kilograms and ounces are in one pound?

1 pound equals 0.45359237 kilograms and 16 avoirdupois ounces in this tool. Chinese market jin are handled separately at 500 grams each. The conversion concerns mass and uses the specified factors internally, while the chosen display precision controls the visible rounding. Confirm whether a source refers to pounds or jin before entering it, since treating those unit names as equivalent changes the represented amount of material.

How many grams and kilograms are in one Chinese jin?

This tool defines 1 Chinese market jin as 500 grams, equal to 0.5 kilograms. Entering jin also lets you compare pounds, ounces, and other supported mass units. The definition follows the mainland market system used by this table. Other regional catty or tael systems may use different values, so confirm the source convention rather than assuming every quantity translated as jin has the same mass.

Does mass unit conversion depend on local gravity?

This tool converts mass units, so the result does not vary with local gravitational acceleration. 1 kilogram remains 1000 grams, and 1 pound remains 0.45359237 kilograms. Converting a mass to a gravitational force is a separate calculation that requires an acceleration value. Do not read a kilogram result directly as newtons, even when everyday language refers to both a measured mass and its force as weight.

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