Why are the units different colors?
Units are color coded based on the system.

English - Black

SI - Blue

Neutral - Beige

Why do the values sometimes show "NaN"?
This is an abbreviation for "Not-a-Number". You must enter a valid number.

Can the input be in exponential notation?
Yes. Enter the prefix, followed by an "e", followed by the suffix. For example, "1.5e4" is a valid number. While entering the value, the result will temporarily be "NaN" until a suffix is added after the "e".

Why are Precision and Exponential formats used?
For some conversions, a difference of several orders of magnitude is possible. For those cases, both Precision and Exponential are more appropriate than Fixed decimal. Six (6) significant digits are insured with this approach.

What is the difference between the Precision and Exponential options?
Precision will display the result in a Standard format (non Exponential), if possible. If required, the result will be displayed in Exponential notation. The Exponential option will always display the result in Exponential notation.

Sometimes the Precision option will display the result as a whole number, is that OK?
Yes. For some values, it is not necessary to add the decimal. There are still 6 significant digits.

Why was the input value truncated when switching between Precision and Exponential?
Up to 6 significant digits are supported when switching modes. If a value of 1.23456789 was entered, it would have been truncated to 1.23457 upon switching modes. The truncation amounts to a very small error (less than 0.001%), considered acceptable for practical purposes. If truncation is considered unacceptable, then enter the value while in the appropriate mode (Precision or Exponential).

Are the results accurate?
Accuracy is the first priority and all conversions are checked by multiple independent sources. The same conversion database is used for desktop and mobile versions, which reduces the chance of error via cross checking. We also offer a guarantee that all results are accurate. Visit www.engineerconverter.com for further information. Even a single error is unacceptable.

Only the unit abbreviations are shown. Is there an expanded definition?
The "Unit List" link gives a full description of the units.

Can more units be added?
Perhaps. If you feel there is a unit that should be added (or eliminated), contact us at contact@engineerconverter.com. However, we must balance the need for additional units with the need for ease of use. This application is optimized for a particular field of engineering and is not intended to be a general purpose conversion program.