Closing summary
The Weight Converter converts mass and weight units across metric, US customary avoirdupois, and troy systems. Pick a system before converting precious metals, because a troy ounce is about 31.103 grams while an avoirdupois ounce is about 28.350 grams, and a troy pound is only twelve troy ounces.
The KG to LBS Calculator handles the common kilogram and pound pair. The Weight Converter owns every system and unit cascade on one page.
Convert between units of weight and mass
The Weight Converter accepts a value in any supported unit and returns the equivalent in the unit you choose, using audited factors from the conversion table. Grams, kilograms, metric tonnes, avoirdupois pounds and ounces, troy ounces, pennyweight, and grains all share one input panel with live recalculation as values change.
Mass in physics and everyday weight on a scale both map to the same numbers here. The tool does not apply local gravity corrections; one kilogram is treated as one kilogram whether the label says mass or weight.
Choose a weight system
Avoirdupois covers ordinary US and UK trade units: sixteen ounces per pound, seven thousand grains per pound. Troy covers bullion and gems: twelve troy ounces per troy pound, twenty pennyweight per troy ounce. Metric uses grams with SI prefixes from milligrams to tonnes.
The system selector locks ounce and pound factors to the chosen family so a gold price quoted in troy ounces is never accidentally converted with grocery-store ounces. Switching systems clears ambiguous defaults and shows which ounce or pound definition is active.
Convert grams to ounces and pounds
One avoirdupois ounce equals exactly 28.349523125 grams. Five hundred grams divide by that factor to yield about 17.637 avoirdupois ounces, or 1.102 avoirdupois pounds when divided by 453.59237 grams per pound. The Weight Converter shows multiply or divide steps under the result.
Enter 500 g, choose ounces, and the working line reads 500 ÷ 28.349523125 = 17.637 oz.
Understand troy versus avoirdupois weight
A troy ounce is heavier than an avoirdupois ounce: 31.1034768 grams versus 28.349523125 grams, roughly ten percent more mass per ounce name. A troy pound is lighter than an avoirdupois pound: twelve troy ounces total about 373.24 grams, while one avoirdupois pound is 453.592 grams.
Jewelry and silver markets quote troy ounces. Flour and postal scales use avoirdupois. Mixing the two without relabeling is a common source of pricing errors on metal listings.
Convert precious metals in troy ounces
One troy ounce equals twenty pennyweight (dwt), or 480 grains in the troy grain definition. Ten troy ounces of silver convert to two hundred pennyweight or three hundred seventy-three grams for cross-check against a metric scale. Enter bullion weight in troy ounces and read grams for assay paperwork, or start in grams and read troy ounces for quote comparison.
The Weight Converter keeps pennyweight and grain in the same troy lane as troy ounces.
See a weight in every unit at once
Cascade mode lists metric, avoirdupois, and troy columns from a single entry so you can scan all customary labels without retyping. One kilogram appears as 2.20462 avoirdupois pounds, 32.1507 troy ounces, and 1000 grams simultaneously. The table updates when the system selector changes, highlighting which column matches the active ounce or pound definition.
Each cell links back into the main converter with that unit preselected.
FAQ
How many grams are in an ounce?
An avoirdupois ounce equals 28.349523125 grams. A troy ounce equals 31.1034768 grams. The Weight Converter labels which ounce type is selected so the gram count matches the market you are quoting.
What is a troy ounce?
A troy ounce is a unit for precious metals equal to 31.1034768 grams, about 1.097 avoirdupois ounces by mass. Twelve troy ounces make one troy pound, not sixteen. Gold and silver spot prices use troy ounces worldwide.
Why is gold measured in troy ounces?
Gold markets inherited troy weights from medieval English coinage and kept troy ounces for bullion while everyday goods moved to avoirdupois sixteen-ounce pounds. A troy ounce is slightly heavier than a grocery ounce, so a one-ounce gold bar contains more grams than a one-ounce steak weighs.
Is a troy ounce heavier than a regular ounce?
Yes, by mass. One troy ounce is 31.1034768 g and one avoirdupois ounce is 28.349523125 g, so the troy ounce is about 10 percent heavier despite the same word ounce on the label.
How many ounces are in a pound?
An avoirdupois pound has sixteen ounces. A troy pound has twelve troy ounces. The Weight Converter shows the active definition next to the pound field so twelve versus sixteen is never ambiguous.
What is avoirdupois?
Avoirdupois is the usual US and UK system for goods: pounds of sixteen ounces, ounces of 28.349 grams, pounds of 453.592 grams. It is not used for troy metal pricing; troy uses twelve-ounce pounds and heavier ounces.
How does this page relate to the KG to LBS Calculator?
The KG to LBS Calculator optimizes the single kilogram and pound pair with stone display. The Weight Converter covers troy, grains, pennyweight, and full cascades. Use the pair page for body weight shortcuts; use this page for metals and multi-unit tables.
The Weight Converter returns each converted value with the factor and working shown, so every result can be checked by hand against the audited conversion table.