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Anty Ep | 07-31-2007 08:12 PM
a number you should memorize if you are going to be buying old foreign silver coins then here is a conversion factor for troy ounces to grams = 0.03215..... its easy to get weight in grams, usually, for european coins, but not ounces, and all our spot prices tend to come in ounces.

Murphy's Law | 07-31-2007 08:17 PM
Re: a number you should memorize Quote:
Originally Posted by Anty Ep (Post 681054) if you are going to be buying old foreign silver coins then here is a conversion factor for troy ounces to grams = 0.03215..... its easy to get weight in grams, usually, for european coins, but not ounces, and all our spot prices tend to come in ounces.
Plus if or when silver hits the moon prices will be set in grams so it will appear to be a real steal.:wink:

sliver | 07-31-2007 08:30 PM
Re: a number you should memorize easier to remember 1 troy ounce = 31.1 grams

Master_Ho | 07-31-2007 08:34 PM
Re: a number you should memorize OR - JUST CUT AND PASTE (never waste memory on something you can write down and look at later :D).........>> Avoirdupois Weight System <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> Avoirdupois is a weight system, utilized by the <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:country-region><st1:place>United States</st1:place></st1:country-region> and <st1:country-region><st1:place>England</st1:place></st1:country-region>, for measuring commodities except precious metals, precious stones and medicines. The unit weight is the pound and is equivalent to 16 ounces. <o:p></o:p> Troy Weight System <o:p></o:p> Troy weight is a system of measurement for precious metals, precious stones etc. where a pound is equivalent to 12 ounces. The name "<st1:City><st1:place>Troy</st1:place></st1:City>" is derived from <st1:place><st1:City>Troyes</st1:City>, <st1:country-region>France</st1:country-region></st1:place>, the city where the system was first used. <o:p></o:p> Weight / Mass 1 grain = 0.06479891 grams 1 pennyweight (dwt) = 24 grains = 1.55517384 grams 1 troy ounce = 480 grains = 20 Pennyweight = 31.1034768 grams 1 troy pound = 5760 grains = 373.2417216 grams = 12 troy ounces<o:p></o:p> 1/2 Kilo = 16.075 oz<o:p></o:p> 1 kilo = 32.15 oz <o:p></o:p>

HistoryStudent | 07-31-2007 08:54 PM
Re: a number you should memorize Gosh, how much would a ton of GOLD cost in US $ today at $664 an ounce?

keehah | 07-31-2007 09:04 PM
Re: a number you should memorize I use this at work a lot. Simple and very handy! http://joshmadison.com/software/convert/ http://joshmadison.com/software/convert/convertAni.gif

momopanda | 07-31-2007 09:32 PM
Re: a number you should memorize Quote:
Originally Posted by HistoryStudent (Post 681084) Gosh, how much would a ton of GOLD cost in US $ today at $664 an ounce?
A ton (short ton/2000lb , not metric) is 29,166.6667 troy ounces @ 664/oz = $19,366,666.90. I think.

momopanda | 07-31-2007 09:49 PM
Re: a number you should memorize PS - apparently a tonne of gold is not much bigger than a toaster oven: <TABLE borderColor=#2f61ac cellSpacing=0 cellPadding=0 align=right border=1><CENTER><TBODY><TR><TD>https://www.indiabullion.com/images/goldtonne.gif </TD></TR></CENTER><TR><TD bgColor=#b1d6ff height=3> Source: The World Gold Council </TD></TR></TBODY></TABLE>Gold is traditionally weighed in Troy Ounces (31.1035 grammes). It has a specific gravity of 19.3, meaning that it is 19.3 times heavier than water. So gold weighs 19.3 kilograms per litre. With the density of gold at 19.32 g/cm3, a troy ounce of gold would have a volume of 1.64 cm3. A tonne of gold would therefore have a volume of 51, 760 cm3, which would be equivalent to a cube of side 37.27cm (Approx. 1' 3''). https://www.indiabullion.com/gold_history.php

BeefJerky | 07-31-2007 11:30 PM
Re: a number you should memorize :offtopic::offtopic::offtopic: Not on topic.......But comes in handy. For tipping at restaurants. Under $30 bill. Round up to nearest dollar. Multiply by 2. Insert decimal point one place to the right. Example,,,,, Bill equals 17.43 Round to 18 times 2 = 36 Insert decimal 3.60 is tip amount This will keep you around the 20% mark. Over $30.00 bill. Move decimal one place to the left. Multiply remainder by 2. That is tip amount. Example,,,,,,,, Bill equals 127.56 Move decimal to left one place 12 Multiply remainder by 2 24.00 is tip amount This will keep you in the 17 - 21% range.

Anty Ep | 08-01-2007 12:20 AM
Re: a number you should memorize I dont leave 20 unless they do a good job, I am in the midwest and 15 is expected you do that easy, just move decimal, and add half again to that number. as I have gotten older my mental math is way better. I can do multiplication in my head now thats far more complicated than what I could when I was younger. sometimes if I am anxious about something I do math in my head to settle. is that crazy? :no_ma:

skirnir | 08-01-2007 01:17 AM
Re: a number you should memorize I have a TI89 graphing calculator; just define _troz as 31,104 grams and divide by the unit to get a scalar result in troy oz. Then again, I'm a bit of a nerd. As for mental math, I find it's just as easy just to keep a pen handy and work it out on a napkin.

aikitrader | 08-01-2007 11:52 AM
Re: a number you should memorize Quote:
Originally Posted by BeefJerky (Post 681248) :offtopic::offtopic::offtopic: Not on topic.......But comes in handy. For tipping at restaurants. Under $30 bill. Round up to nearest dollar. Multiply by 2. Insert decimal point one place to the right. Example,,,,, Bill equals 17.43 Round to 18 times 2 = 36 Insert decimal 3.60 is tip amount This will keep you around the 20% mark. Over $30.00 bill. Move decimal one place to the left. Multiply remainder by 2. That is tip amount. Example,,,,,,,, Bill equals 127.56 Move decimal to left one place 12 Multiply remainder by 2 24.00 is tip amount This will keep you in the 17 - 21% range.
Sheesh...too much to remember. I just take 10% of the bill x 2 Much simpler for me.

aikitrader | 08-01-2007 11:54 AM
Re: a number you should memorize Here is my favorite conversion website I use: http://www.convert-me.com/en/

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