Throughout the Witcher series, a variety of measurements are used.
Weights 
Edit
Lot Edit
A lot is a unit of weight equivalent to half an ounce. 32 lots usually make one pound.
Ounce Edit
An ounce is a unit of weight. Though not specifically mentioned, it seems likely that 8 ounces make one mark and 16 ounces make one pound.
Mark Edit
A mark is a unit of weight equivalent to half a pound. Unfortunately there is no mention of how many ounces make one mark, but likely it is 8.
Pound Edit
A pound is a unit of weight equivalent to two marks or 16 ounces.
Stone Edit
A Stone is a unit of weight equivalent to 25 pounds.
Hundredweight Edit
A hundredweight is a unit of weight equivalent to 100 pounds.
Quart Edit
A quart (Polish: kwarta) is a unit of weight equivalent to 1/4 of a gallon. Typically it's used to measure liquids.
Gallon Edit
A gallon (Polish: garniec) is a unit of weight equivalent to 4 quarts or 1/8 of a bushel. Typically it's used to measure liquids.
Bushel Edit
A bushel (Polish: Ćwiertnia) is a unit of weight equivalent to 8 gallons and usually used for agricultural products.
Barrel Edit
A barrel (Polish: korzec) is a unit of weight equivalent to 4 bushels.
Lengths Edit
Inch Edit
An inch is a unit of length equivalent of about 2.54 cm.
Span Edit
A span is a long-standing unit of length used in the Northern Kingdoms. It is basically the average distance from the end of the thumb to the end of the little finger on an average man's open hand. That measurement is estimated differently in different places but tends to run around 9 Inches (or ~18.5 - 22.5 cm).
Foot Edit
A foot (Polish: stopa) is a unit of length equivalent to 12 inches.
Cubit / Arszyn Edit
A cubit is a unit of length equivalent to 18 inches. The term arszyn is occasionally used, which is the Russian cubit. It varied in length between 28– 32 inches until Peter the Great standardized it to 28 inches.
Ell Edit
An ell is a unit of length equivalent to 2 feet (or 24 inches).
Yard Edit
A Yard is a unit of length equivalent to 2 and a half spans or 30 inches.
Fathom Edit
A fathom is a unit of length equivalent to 3 ells (6 feet or 72 inches).
Rod Edit
A rod is a unit of length which is equivalent to approximately 11 cubits (198 inches).
Furlong Edit
A furlong is a unit of length that has had various definitions over time. Vysogota of Corvo said to Ciri that the generally agreed upon reckoning is that 420 furlongs are the equivalent of about 50 miles (meaning 8.4 furlongs equals 1 mile).
Mile Edit
A mile is a unit of length equivalent to 63,360 inches, 5,280 feet, 3,520 cubits, 320 rods, or about 8.4 furlongs.
