A Dictionary of Units

This provides a summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), together with the appropriate conversion factors needed to change them into a 'standard' unit of the S I.

College of Chemistry - University of California at Berkeley - Common Equivalent Weights and Measures

English Customary Weights and Measures

Explains the origins of the system still in use in the United States.

English weights & measures

Information on many areas of measurement including historical.

Gamle norske måleenheter

From Norsk Forlishistorisk Forening. Provides old Norwegian measurements included area, volume, and coinage.

German Genealogy: Old Units

Translation table of old to contemporary units of measurement. Includes area, length, volume, weights, counts, speed, coins, & worldwide measurements.

How Many? - A Dictionary of Units of Measurement

How many cloves in a stone? How many bushels to a seam? This is an encyclopedic listing of current, historical, and obscure measurements from around the world.

How to Read and Understand Legal Land Descriptions - Understanding Legal Land Descriptions

Imperial Weights and Measures

Index of Imperial Russian Weights & Measures

In order to find and use specific types of Russian records, resarchers need to be able to identify and understand some key terms in the Russian language. This glossary contains terms relating to weights and measures in Imperial Russia, transliterated from Russian, along with their English translations. The terms included here are those that you are likely to find in Russian genealogical sources.

International Committee for Historical Metrology

The International Committee for Historical Metrology (CIMH) intends to develop and advance the research on the field of history of measures and weights.

Old Imperial Lengths & Areas, etc

Online Conversions - Conversion of Metric Units at Asknumbers.com

Conversions between different metrics of length, weight, temperature and more.

Sizes: The Online Quantinary

Surveying Units and Terms

Surveying Units and Terms

A list of units of measure, surveying terms, water descriptions, and trees.

The Bureau of Land Management - - Eastern States, General Land Office

The Official Land Patent Records Site. This site has a searchable database of more than two million Federal land title records for Eastern Public Land States, issued between 1820 and 1908, including scanned images of those records. The Eastern Public Land States covered in this database are: Alabama, Arkansas, Florida, Illinois, Indiana, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Ohio, Wisconsin. Images of Serial patents, issued between 1908 and the mid-1960's are currently being added to this web site.

U.S. Weights and Measures

Includes area measures and surveyor's chain measures.

Weights & Measures

Weights and Measures

Books from the UK Society of Genealogists book store.