CustomCalc Logo CustomCalc scientific calculator
  • CustomCalc is a powerful scientific calculator
  • CustomCalc is a easy engineering calculator
Powerful scientific functions and features

CustomCalc is a real pleasure to use, accurate, and fast. It offers two input modes (RPN, and Algebraic) and an astonishing array of scientific and math built-in functions and features.

The user can redefine buttons to customize the calculator in pretty much any way desired. You can have the functions you use most, right where you want them.

  • There are 113 keys you can define with hundreds of functions (math, trig, financial, time, etc., and dozens of conversions).
  • It just takes one or two key strokes to get your answer.
  • Customizing your own calculator is easy using CustomCalc. Using it makes you more efficient
  • You can store 18 numbers in memory and display them all at once..

Main functions

  • Statistical Functions
  • Unit conversionsC

People from the next companies use CustomCalc:

  • IEEE - Institute of Electrical and Electronics Engineers, Inc
  • NASA
  • Nokia
  • Raytheon
  • Max-Planck-Institut fuer Physik
  • AtlasCopco
  • US Navy
  • ASME - American Society of Mechanical Engineers
  • Chevron Phillips Chemical
  • Praxair, Inc.
  • Bosch
  • Office of Science - US Deparment of Energy
  • JohnDeere
  • Colorado Energy Management LLC
  • Grace Street Residential Design Systems
  • AdventSolar
  • Jaderloon
  • WRG Desing Inc.
  • HOPSA (PA)
  • AXPO (CH)
  • Adirondack Performance Engineering
  • Bartek Technologies
  • ITSA Telecomunicaçoés (BR)
  • LockNet
  • Allset (SE)
  • EDI Solutions
  • BLM - Bahia las Minas Corp.
  • ITISA (MX)
  • INGWE Coal Corp Limited - BHP Billiton (ZA)
  • Kevin Collins Design
  • Trazar Corporation
  • New Jersey American Water
  • Struble-Welsh Engineering
  • Copeland - Emerson Climate Technologies
  • San Diego Real Estate
  • ESJ Commercial Space Planning and Design
  • Dyno Nobel
  • CH2M Hill
  • Jenifer Ray
    "Fantastic app!! I'm an engineer and this app save me a lot of time. Work like a charm. If you're student or professional this app is a MUST. Contain all the necessary Scientific Functions. Thanks a lot!!"

  • Brian Noller
    "I, as a teacher of computers, math and physics am lost without it!"

  • David Fuller
    "I think I have tried all of the scientific calculators..., but CustomCalc is the only one I have registered. It works close enough to the HP calculator I have used for many years that I now don't need to carry it"