Suppose it depends on your currency exchange rate and your cheapest local dealer Here in NZ the best/cheapest dealer to me is selling at Gold NZ$2,980.56 per oz to Silver NZ$48.24 per oz which is 61:1
comes out at 65 then for me but why would you do that unless you're going to buy 1kg Gold bars? 1oz to 1oz seems more logical to me
1oz in silver is just premium, so not comparing metal prices when you take out silver to sell, usually at a discount/or spot+ I used to look at 100oz as a guide for silver price, usually just buying the kilo as for gold, the smaller ones are premium+, so its best to compared the 100g gold bar, but we need to use the 15kg silver etc to compare we can compare 1kg gold and 1000 oz silver bars, but we don't actually trade them, its not what we deal in $3k in gold compared to $3k in silver we can use the money to by gold or silver