There is a number of calculators out there, and you can find one for practically any purpose you may have. Your choice should depend on what you are using a calculator for, and what kind of calculations you plan on doing.

RJ Software

5 on 1 vote


4 on 1 vote

Saravel Corporation

4 on 1 vote


4 on 1 vote

Institute of Engineering Thermophysics

4 on 1 vote


2 on 2 votes

Challenger Engine Software

2 on 1 vote

Gold Calculator Software Products

4 on 1 vote

Aquarius Soft

4 on 1 vote

Inza Performance

4 on 1 vote

Shawn Harrison

Fudje Software

Doc Design

ESB Consultancy

Partnership for the Umpqua Rivers

1 on 2 votes

FarsightSoft, Inc.

HHS Software Corp

CAST software


ESB Consultancy

Abhisoft Technologies

ESB Consultancy


Douglas Software

Black Cat Systems

Dlubal Software GmbH

Omega One