External Links - Free Unit Converter

Authoritative Resources on Units and Measurements

Below is a curated list of high-quality external resources about units, measurements, and conversions from Wikipedia, government sites, educational institutions, and scientific organizations. These links will help you deepen your understanding of measurement systems and their applications.

Wikipedia (General Knowledge)

Comprehensive overview articles on various measurement systems:

International System of Units (SI) https://en.wikipedia.org/wiki/International_System_of_Units
Metric system https://en.wikipedia.org/wiki/Metric_system
Imperial units https://en.wikipedia.org/wiki/Imperial_units
United States customary units https://en.wikipedia.org/wiki/United_States_customary_units
Conversion of units https://en.wikipedia.org/wiki/Conversion_of_units

Government & Standards Organizations (.gov, .org)

Official resources from national and international metrology organizations:

NIST: International System of Units (SI) https://www.nist.gov/pml/owm/metric-si
NIST Weights and Measures https://www.nist.gov/weights-and-measures
BIPM: SI Brochure https://www.bipm.org/en/publications/si-brochure/
BIPM: History of the SI https://www.bipm.org/en/measurement-units/history-si/
FDA – Nutrition Labeling Unit Conversions https://www.fda.gov/food/nutrition-facts-label/guidance-industry-guide-creating-readable-nutrition-facts-label

Educational & Scientific Institutions (.edu, .org)

Resources from universities and educational platforms:

MIT Metrology Lab: Units & Standards https://web.mit.edu/10.001/Web/Course_Notes/Measurement_notes.html
UNC: Units & Conversions https://www.chem.unc.edu/measurement-and-conversion/
Purdue: Metric System Guide https://chemed.chem.purdue.edu/genchem/topicreview/bp/ch1/index.php
Georgia Tech: Unit Conversion Tool https://www.gatech.edu/unit-conversion
Khan Academy: Units & Measurement https://www.khanacademy.org/science/physics/one-dimensional-motion/displacement-velocity-time/a/units

Historical & Specialized References

Historical context and specialized measurement applications:

NIST: The Metric System in the U.S. https://www.nist.gov/system/files/documents/pml/wmd/metric/1136a.pdf
NASA: Units Policy https://standards.nasa.gov/units
NOAA: Nautical Units https://www.nauticalcharts.noaa.gov/publications/docs/conversions.html
Royal Society: History of Measurement https://royalsociety.org/topics-policy/projects/measurement-history/
Engineering Toolbox: Unit Converter https://www.engineeringtoolbox.com/unit-converter-d_185.html

Interactive Tools

Online tools for unit conversion:

NIST Unit Converter https://www.nist.gov/pml/owm/metric-si/unit-conversion
Wolfram Alpha Unit Converter https://www.wolframalpha.com/calculators/unit-converter/

Note: External links open in new tabs and lead to third-party websites not controlled by Free Unit Converter. These resources are provided for educational purposes.