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iGotCharts + Currency & Units Converter

iPhone / iPad
  • Utilities
  • Reference
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iGotCharts is a serious units converter with a high degree of accuracy and flexibility. It was designed and developed by a professional engineer with over 40 years of metrology experience which is reflected in the features, capabilities, and accuracy of this app. It also has a very simple and attractive user interface.

There are over 1,700 units in over 50 categories, but you can easily disable those you don't need and put them in whatever order best suits you, then save it as a favorite and quickly switch between your favorites and the app defaults. There is also a powerful search feature to simplify locating a unit of interest, regardless of category. We invite you to visit our support web page for a complete listing of the unit categories.

You get all the app has to offer now as well as all future enhancements for one low price. Current features include a collection of reference charts on a variety of topics, a currency converter, numeric converters and a units converter. More features are under development.

iGotCharts is ideal for use in the kitchen as well as for engineering, surveying & scientific applications and anything in-between. Our conversion factors are consistent with NIST publications as well as other standards agencies and organizations such as API, BIPM, IAU, IEEE, IEC, etc. Every unit is defined & described. Whimsical units & systems such as smoots, FFF (furlong-firkin-fortnight) units and the Potrzebie System of units are also included for academic usage.

iGotCharts uses 64-bit floating point math with a 52-bit significand, good for 15 significant digits of data presentation. We have developed advanced algorithms and proprietary conversion factors to maximize the computation accuracy. Where NIST or other agencies define an exact relationship between two units of measure, iGotCharts will perform those calculations precisely without any rounding. Inexact conversions may have slight rounding in the 14th or 15th digit, which still provides at least 13 significant digits of accuracy.

General App Features:
Retina support for both iPad and iPhone
All orientations supported for all devices
Swipe gestures simplify navigation and minimize button clutter
Save favorites in any chart or unit category
Quickly alphabetize or enable/disable all items in a category
Reference charts and publications on a variety of topics
Currency converter with over 160 currencies
Extremely flexible units converter
Definitions & descriptions of every chart and unit
Print charts to Airprint printers
Email feedback or charts from within the app

Units & Currency Converter Features:
Enter & convert data in decimal, scientific, or fractional numbers
Supports compound units (ft-in, st-lb-oz, hr-min-sec, etc.)
Quickly & easily adjust output mode & display precision
64-bit math provides up to 15 significant digit conversions
Use thumbwheel picker or tabular list to view conversions
Indexed list of all individual units with powerful search feature
Attractive graphics help identify the units
Swipe up to update currency conversion rates
Tap the equal sign to quickly swap the from/to units
Tap the unit abbreviations for a description of that unit

We welcome your suggestions for additional units, charts, or other features. .