Standard Units of Measurement Reference in the Best of the Web Directory

Standard Units of Measurement Reference

All Measures

Offers a large conversion table, an online converter of units of measure.

British Weights and Measures Association

Advocacy group promoting British weights and measures instead of using a compulsory use of metric system.

Celsius-Fahrenheit Converter

Easily convert between Celsius, Fahrenheit, Centigrade and Kelvin with this free online tool.

Online conversions calculator for a variety of unit measurements featuring natural language queries.

English Weights and Measures

Information on Imperial weights and measures.

Metric 4 US

Presents arguments in favor of adopting the metric measurement system and points out the flaws or disadvantages of the English system.

Metric Conversion Tables

Free online resource useful in converting measurement units into their metric derivatives.


Contains a length conversion table between metric and English units.

NIST International System of Units

Provides a reference on constants, units, and uncertainty.

NWML: Metric Conversions

FAQ sheet published by the UK National Weights and Measures Laboratory. Answers questions related to metric conversions and the units of measurement no longer used for trade.

SI Metric

Table of metric conversions with details on scientific notations and SI unit descriptions.

Unit of Measure Conversion Equivalences

Provides information about the international system of units (SI), SI prefixes, fundamental physical constants, and SI base and derived units.

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