I have this weird need to conceptualize minutiae by arranging things in lists.
Goods and Services
Currency
Gold, silver and copper are the only forms of coinage. Each coin is assumed to weigh 1/200 of a pound.
As a point of interest, a pound of pure, unstruck gold is slightly smaller than a ping-pong ball. A pound of silver is slightly smaller than a golf ball.
I've tweaked costs to bring them into line with real medieval prices. Castles are expensive.
[Edit: Expanded 4/29]
Relative Values
900,000gp Projected cost of the Temple of Oronthon
600,000gp Annual tax revenue of the Crown of Bairgahei at peace
200,000gp Annual income received from all holdings of a wealthy duke
50,000gp Value of a dragon's hoard
50,000gp Dowry of a princess; one's weight in gold
50,000gp Cost to build a stone keep, 60-ft square and 80-ft. high
45,000gp Mausoleum built to honor an earl
15,000gp Cost of a royal warship with an 80-ft. keel
12,000gp Annual stipend paid to an alchemist
10,000gp Annual income of an average baron
10,000gp Cost of a stone tower, 30-ft diameter and 40-ft high.
10,000gp Cost of jewelery worn by a baroness to a royal wedding
10,000gp Dowry for a baron's daughter
8000gp Grand house for a wealthy merchant
6000gp Annual income of the Lord Chief Justice
5000gp Cost to commission and build a merchant cog or knarr
3600gp Bed, duke's, with cloth of gold and satin canopy
2000gp Cost of a funeral for a wealthy baron
1250gp Typical value of a freeholding with stone farmhouse, barn and 20 acres
1250gp Annual money generated by a minor nobleman's estates
1200gp Dowry for a knight or wealthy gentleman's daughter
1000gp Stone townhouse with courtyard and wooden mews
1000gp Gown, duchess's, sets fashion
700gp Destrier, Anwealdi, 16 hands
600gp Skiff, coastal, 30-ft keel
500gp Coach, nobleman's
300gp Craftsman's house with work area
300gp Value of coins and jewelery carried by a Noble
250gp Charger, knight's
250gp Courser or palfrey
250gp Annual wage of an armorer
200gp Catapult and 20 rounds of shot
200gp Hunting lodge
150gp Pavillion, knight's, fine
150gp Barding, for destrier
150gp Pony, war-trained
144gp Annual wage of a master mason
125gp Horse, rouncy, solid
120gp Annual income of a mounted man-at-arms
120gp Annual wage of a scribe
120gp Annual cost of maintaining an earl's charger
100gp Annual rent for a merchant's house
100gp Gown for lady-in-waiting or young noblewoman
100gp Noble's outfit
100gp Mail, knight's, with great helm
100gp Stone cot with one room
100gp Sword, fine, with gold hilt
100gp Tapestry, fine
75gp Horse, fast, riding
60gp Fee to join a major guild
50gp Annual income of a thatcher
50gp Craftsman's tools
50gp Hovel, wooden
40gp Grand feast for 50 people
40gp Horse, draft or cart horse
40gp Mail hauberk or byrnie
40gp Sword, large, made for Karl the Mad
30gp Dagger, silver, ceremonial
30gp Wagon, covered, with 4 wheels
25gp Saddle, for war horse
25gp Hovel, wattle
25gp Thieves' Tools
22gp Chest, small, iron-bound with lock
20gp Anvil, blacksmith's
20gp Average cost of a book
20gp Caparison for knight's horse
20gp Crossbow
20gp Fee to gain the freedom of a large town
20gp Gentleman's outfit
20gp Hawk, trained
20gp Horse, pack or mule
20gp Sword, knight's, good weapon
20gp Wedding feast for a wealthy freeman
15gp Cart, with 2 wheels
15gp Ox
15gp Saffron, lb.
12gp Sword, footman's shortsword
10gp Cow, good milk cow
10gp Cuirboilli for archer or light footman
10gp Dog, excellent hunter
10gp Saddle, for riding horse
10gp Shield, knight's heater, painted
10gp Furs and hides for cold weather
10gp Annual wage of an unskilled laborer
7gp Battle-Axe
7gp Bill or glaive
7gp Longbow, ash or yew
7gp Shield, round, with metal boss and rim
7gp Spear, boar
6gp Fee to join a minor guild
5gp Lance
5gp Mace, flanged or spiked
5gp Saddle, pack
5gp Saddlebags, leather
4gp Annual wage of a kitchen servant
3gp Bow, hunting or shortbow
3gp Spear
3gp Axe, horseman's
3gp Axe, throwing
3gp Cinnamon, lb.
3gp Pig
2gp Backpack, leather
2gp Blanket, wool, thick
2gp Bolts, crossbow, 30
2gp Dagger, dirk
2gp Rations, iron, 1 week
2gp Sheep
1gp Arrows, for longbow or shortbow, 20
1gp Javelin
1gp Rope, 50ft.
9sp Crowbar
8sp Flint & steel
6sp Candle, wax, 1lb.
6sp Waterskin
5sp Axe, woodsman's
5sp Bucket, wooden
4sp Bottle, quart
4sp Dried fruit, lb
4sp Wine, cheap, gallon
3sp Bacon, pound
3sp Barrel, 20gal
3sp Oil, pint
3sp Sack, small
2sp Candle, tallow, 1lb
1sp Chickens, brace
1sp Eggs, two dozen
1sp Torches, 6
1sp Wine, good, pint
5cp Cheese, pound
2cp Ale, good, pint
1cp Ale, cheap, pint