HEATKEYS

Perform conversions between 2100 various units of measure in more than 70 categories.

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PDF Converter Elite is a software package that lets users convert their PDF documents into Word, Excel, PowerPoint and also create, manage and edit PDFs anytime.

This site includes lots of information that is time and date related, such as yearly and monthly calendars, countdown counters and the world clock which shows current time in cities all over the world.

Welcome to the U.S. ISBN Agency, the official source for ISBNs in the United States. No other source can assign legitimate ISBNs to US publishers. Bowker provides technical advice on uses of the ISBN standard to the publishing industry.  Also in...

Apogee Electronics is the leading manufacturer of computer audio recording interfaces for musicians, producers and engineers.

A resource containing many useful calculators and conversions

Analog Devices, Analog, Semiconductors, Digital Signal Processing, World leader in high performance signal processing solutions. Offers ICs for data converters, amplifiers, DSP, RF & communications, power and thermal management, supervisory and i...

This online unit conversion tool will help you convert measurement units anytime and solve homework problems quickly using metric conversion tables, SI units, and more.

California Air Resources Board Home Page

Instant online calculators and converter tools for various measures and systems conversion. Culinary resource conversion center. Teaching culinary and cooking how to convert volume vs weights tasks. Convert values from one measure into other substitu...