Well, I was looking at the prices for the items, and although I was glancing at first… eventually I just couldn’t stand it, maybe I’ve watched too much Spice and Wolf or played too many Strategy games.

However I’m going to do some tweaking now.
I’m going to keep the standard coin worth, 100 CP = 1 SP, and 100SP = 1GP, but I’ll scrap the PP because I can’t seriously take that as a serious currency.

Okay, from now on, this is the base for everything forward onward.
1 Gold Piece shall feed a person for a year. (Based on a system the Japanese used, the Koku)
1GP = Fed person for a year

1 Bushel of wheat can create 73 pounds (the modern number was higher and assuming for inefficiencies in a medieval production system, I downed the number alot.) of bread.

So that is 73 days a person is fed for.
So ~ 5 Bushels of Wheat will feed a person for a year.
1GP = 5BofWh
1 Bushel of wheat = 2 SP (20 CP)

Well, doing some quick looking around, the only item I can find a decent set time to make was the Katana… and to make a good one, required 3-4 months to make.
1.25 BofWh – 1.65 Bushels of work, to keep himself reasonably fed.
So, by the work ethic alone, lets say the Katana cost 5 SP of production (3SP 3 CP was the actual number)

The Katana is made up of 2 lbs of raw materal (approximately)
In the Roman economy, by conservative estimates, a roman iron worker could produce 1.5 kg of iron/year which was not surpassed until out Industrial Era. (Roman Economy)
I’ll round this down to 3.3 pounds a year, after conversion from kilograms.
So, assuming the production of 3 pounds of iron is approx. 1 GP, you would need only 7SP of it to produce a katana.

So, making a nicer number to work with, the Katana now costs, and add a SP or so for the charcoal worker, the Katana is now around 15 SP.

In Pathfinder the Katana is listed under the price of 50GP, so assuming that the people who wrote the book were as equally generous to Blacksmiths and craftsmen everywhere, we shall assume they grossly over estimated those as well.

So, Patherfinder, the above would be 500 SP, …
which means the conversion of everything would be in SP, and multiplied by a factor of 0.03

DM Acularius hath spoken, I’ll be modifying your money in conjunction to this.
Convert the price to SP, the multiply it by 0.03

This only shows the base, depending on your location on the map the prices of items will be affected. For example, a pound of salt outside of the salt mine would be sold at base price whereas the same pound of salt would be considered alot more in an area that imports and using said commodity.


I changed how many copper pieces are required for a silver piece as well as how many silver pieces are needed for a gold piece. The conversion should still work out the same but this allows the items of lesser values to still be worth something.


Auctoritas Acularius