Physics Formulas Calculator is described as 'comprises a selection of 119 different calculators that will simplify calculations which have given you headaches so far. Complex calculations, such as Force, Static Friction and others' and is an app in the Education & Reference category. There are more than 25 alternatives to Physics Formulas Calculator for a variety of platforms, including Online / Web-based, Android, Windows, Linux and Mac. The best alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Physics Formulas Calculator are Wolfram Alpha (Freemium), Mathematica (Paid), fxSolver (Free) and Insect (Free, Open Source).
SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited Variables, Syntax Highlighting, Functions, with 'Automagic' Completion, 50 Decimal...
Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.
High precision scientific calculator with full support for physical units. - Evaluation of mathematical expressions - Parsing and handling of physical units (All SI units, imperial units, time-based units, ..