Convert ounce (apothecary; troy) to pennyweight (troy)  oz = dwt
Convert oz to pennyweight (troy), change ounce Weight and it converts as you type. It's that easy.  Ounce is defined as...
Definitions & Instructions below.
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Apothecary Weights

Instructions:
 Weight Conversion:
To convert any of the listed Weight units to the other Weights, just type a new number into its field.
The conversion will take place as you type in the new number.
It is accurate to 12 decimal places and can be adjusted to have rounding from 1 to 12 decimal places.
 Scale Information Window:
To see scale information within the application above, place the mouse cursor over items in the left side of the scale info window.
The information about the scale will then be seen in the right side of the form.
By clicking the left mouse button, you set an important value associated to the unit in the Weight fields
and see values associated with it in the conversion window.
 Decimal Places Adjustment:
To adjust the maximum number of decimal places from 1 to 12, select from the drop down "Round to # Decimal Places".
This will cause the conversion results to be rounded to that number of decimal places and will limit the maximum number of digits
right of the decimal point to the number selected in each of the fields.
Note: zeros right of last non zero digit are not displayed.
