# TechCalc Scientific Calculator

Android app · by Roaming Squirrel Software · Tools

TechCalc Scientific Calculator has 4,775,729 installs, rated 4.6 from 40,264 ratings, \#1,972 of 228,735 in Tools.

## Figures

- Installs: 4,775,729
- Rating: 4.6 · 40,264 ratings
- Price: Free
- In-app purchases: no
- Rank: #20,817 of 2,767,540 by installs on Android
- Rank: #1,972 of 228,735 in Tools

## Reviews

- Ratings by stars: 5★ 79% · 4★ 13% · 3★ 3% · 2★ 1% · 1★ 4% (40,252 ratings)

## Description

TechCalc is the "Swiss Army Knife" of Scientific Calculators ... 44 Calculation Options + a Scientific Reference Section + the Periodic Table of the Elements!  
  
Perfect for all aspects of scientific and engineering calculations in school, university and throughout your career. Why not download it now and give it a try?  
  
Modes included in the main menu are:  
  
● Basic Calculator - Algebraic and Reverse Polish Notation (RPN),  
● Scientific Calculator - Algebraic and Reverse Polish Notation (RPN),  
● 64-bit Programmer Calculator (Hex, Oct, Bin and Dec) - Algebraic and Reverse Polish Notation (RPN),  
● Graphs (Functions, Implicit Equations, Parametric Equations, XY Scatter Plot and 3D Surface Plot),  
● Matrices - including Inverse, Transpose, Determinant, Cofactor, Adjugate, Trace, Rank, Eigenvalues, Eigenvectors, Decompositions (LU, Cholesky, QR, Singular Value),  
● Complex Numbers (Cartesian, Polar, using Euler's identity),  
● Quick Formulas (includes 58 classic scientific formulas plus the ability to add your own custom formulas),  
● Quick Converter,  
● Time Calculator,  
● Equation Solver (Linear Equations, Roots of a Polynomial Equation, Exponents of an Exponential Equation, Inequations, Factorization of Polynomials, GCD of 2 Polynomials, LCM of 2 Polynomials, Binomial Expansion & Vector Arithmetic),  
● Calculus - including Symbolic Algebra (Derivatives, Definite Integrals, Taylor Series, Indefinite Integrals & Limits)  
● Financial (Simple Interest; Compound Interest; Cash Flow; Amortization; Growing Annuity; Cost, Sales, Margin & Markup; Break-Even; Depreciation; Bonds; Days Calculation; Interest Conversion; Options Trading - Greeks)  
  
\+ the Periodic Table of Elements!  
  
Features include:  
  
● All Trigonometric operations (radians, degrees or gradients)  
● Powers & Roots  
● Logs and Antilogs  
● Factorial, Modulus & Random Numbers Functions  
● HCF, LCM, Prime Factors  
● Pol() & Rec() Functions  
● Permutations (nPr) and Combinations (nCr)  
● Statistics (30 different functions!)  
● Conversions (35 different categories!)  
● Physical and Astronomical Constants (52 in total!)  
● Fractions Mode  
● 20 Memory Registers in each of the calculation modes  
● Detailed calculation history  
● Extensive Help and Reference  
● Highly customizable via the Settings  
  
The reference section includes the following calculators and converters (any, or all, of which can be moved to the main menu if required):  
  
● ASCII Converter  
● Aspect Ratio Calculator  
● Balancing Chemical Equations  
● Barometric Formula Calculator  
● Bicycle Tire Pressure Calculator  
● Body Mass Index (BMI) Calculator  
● Boolean Algebra Calculator  
● Characteristics of an RLC Circuit  
● Color Calculator  
● Coordinates Converter  
● Empirical Formula Calculator  
● Ephemerides Calculator  
● Feet and Inches Calculator  
● Fractional Bits Converter  
● Geodetic Distance Calculator  
● Humidity Calculations  
● IEEE 754 Converter  
● Interpolation Calculator  
● IP Subnet Calculator  
● Linear Regression Analysis  
● Molecular Weight Calculator  
● Number Base Converter  
● Numerical Sequences  
● Percentage Calculator  
● pH Calculator  
● Polygon Area Calculator  
● Proportion Calculator  
● Roman Numeral Converter  
● Sigma and Pi Notation  
● Statistics (Grouped Data)  
● Unit Price Comparison  
● Wind Chill Calculator  
  
The reference section also includes the following information:  
  
● Physical Laws  
● Mathematical Tables  
● Elementary & Linear Algebra  
● Trigonometric Identities  
● Differentiation & Integration Rules  
● Statistics Formulas  
● Vector Mathematics  
● Names in the Metric System  
● Cooking Temperature Scales  
● Beaufort Wind Scale  
  
Please email any questions that are not answered in the Help section.  
  
This is also an ad-supported app - upgrade to an ad-free version via: https://play.google.com/store/apps/details?id=com.roamingsquirrel.android.calculator\_plus

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Source: https://storetally.com/googleplay/com.roamingsquirrel.android.calculator  
As of 2026-10-17, from the StoreTally census.