Quick guide
How to use this calculator
- Enter the measurements or named convention from the real task rather than converting intermediate values separately.
- Check every selected unit, regional convention, denominator, density, ratio, scale, or purchasing increment before using the result.
- Use the reconciled companion outputs to verify the result and retain the stated limitations for purchasing, cooking, sizing, or production decisions.
Calculation method
How the precious-metal weight converter works
Reconcile jewellery and bullion mass units with their system clearly labelled.
Convert every source mass to grams using defined unit relationships, then divide by the destination grams-per-unit factor.
Worked example
Precious-Metal Weight Converter example
1 troy ounce equals exactly 31.1034768 g and 20 pennyweights.
Convert every source mass to grams using defined unit relationships, then divide by the destination grams-per-unit factor.
Supported inputs
Precision and limits
Workflow boundary
This converts mass only. Purity, fineness, price, assay uncertainty, and legal trade requirements are separate.
Precision
Calculations retain full working precision and round only for display. The result cannot be more accurate than the entered measurement, selected standard, material data, or practical process.
Category ownership
This calculator handles a neutral measurement, conversion, sizing, packaging, printing, or household workflow. It does not interpret health status, clinical measurements, child growth, body composition, diagnosis, treatment, or medical risk.
Privacy
Entered values and results stay in this browser and are not sent to analytics or third parties.
Continue calculating