Scientific calculator with graphs, equations, calculus, formulas, finance, etc.
About TechCalc Scientific Calculator
TechCalc Scientific Calculator is a tools app developed by Roaming Squirrel Software.
Download Statistics
TechCalc Scientific Calculator has been downloaded 4.8 million times. In the last 30 days, the app was downloaded 9 times.
User Ratings
TechCalc Scientific Calculator is rated 4.61 out of 5 stars. The rating is based on 38 thousand ratings.
App Information
TechCalc Scientific Calculator is FREE to download. The APK download size is 13.96 MB. The latest version available is 5.2.8. The last update was on May 31, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play December 2010.
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
Recent changes: ver 5.2.8: ★ fixed a bug causing a crash in HEX/OCT/BIN mode when using / as the division operator ★ library updates
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Comments on TechCalc Scientific Calculator for Android
★★★★★Tarekegn· Jun 7, 2021
Excellent: it performs almost all mathematical, physics, statistical, engineering and lots of other calculations as well. Great app!
★★★★★Christopher Bell· Jul 5, 2024
This is a scientific calculator app not a graphic calculator! Does the task quite well.
★★★★★edusson· Mar 20, 2023
Engineer here... Been using this calculator for years and can't believe I had not given it a review till now. Hands down, excellent calculator! Full of features and at the same time very intuitive to use! Thank you very much!
★★★★☆Birendra Prasad Bhagat· Jul 16, 2022
I'm using this calculator very often.... Very nicely design. But if app has option to use USER DEFINED CONSTANTS or VARIABLES in QUICK FORMULA then it is more useful and user-friendly. Hope to see such implementation in the future.
★☆☆☆☆Rae Cooke· Dec 6, 2025
I paid for this app as I rated it the best calculator for my requirements. Unfortunately after losing my phone and subsequent purchase of a new one, I lost the paid version of the app. As I no longer used the app as frequently I settled for using the free version. I was happy to put up with the ads as they were not too intrusive until now when they have started displaying pornographic images across the top of the screen. This is the second app that I have removed recently for the same issue.
★☆☆☆☆David Judge· Apr 25, 2026
I want a scientific calculator but not always scientific notation displayed
★☆☆☆☆Nitin Kumar Jain· Dec 19, 2025
Binary/ hex converter is not working after last update
Google Play Rankings for TechCalc Scientific Calculator
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Technologies used by TechCalc Scientific Calculator
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