Scientific Calculator
Trig, inverse trig, roots, powers, logs, constants, factorial, prime checks, memory, history and RPN.
Calculate online →Free online scientific calculator
Calculate here. Go further in the app.
Calqen brings the calculation logic from the Android app to the web: scientific functions, DEG/RAD trigonometry, logarithms, roots, factorials, permutations, combinations, graphing, equations, statistics, DMS and unit conversion.
The web calculator runs locally in your browser. No account required.
Scientific functionsGraph modeEquation solver29 formula categories
CALQEN WEBDEG
sin(30) + log₂(8)3.5
Online tools
More than a calculator keypad.
Dedicated tools are kept on separate crawlable pages so students and professionals can reach the exact calculator they need.
Graphing Calculator
Plot functions such as sin(x), x²−4 and log(x) on a responsive graph.
Plot a function →
Equation Solver
Solve linear equations and quadratic equations with real or complex roots.
Solve equations →
Statistics & Regression
Population/sample deviation, quartiles, correlation and several regression models.
Analyze data →
Unit Converter
Convert length, mass, temperature, area, volume, speed, time, data, pressure, energy and power.
Convert units →
Formula Library
Browse the original reference sheets used by the app across mathematics and science.
Browse formulas →From the Android app
Same Calqen product, now useful on the web.
The website stays focused on fast calculation while Google Play remains the main path to the complete mobile experience.
FAQ
About the Calqen web calculator
What calculations work in the browser?
Standard arithmetic, powers, square and nth roots, trigonometry, inverse trigonometry, natural and base-10 logarithms, custom-base logarithms, factorials, prime checks, nCr/nPr, constants, RPN, equations, graphing, DMS, statistics and the unit converter.
Are calculations sent to a server?
No. The calculator logic runs in JavaScript inside your browser. Calculation history is stored locally on your device.
Why download the Android app?
The Android app provides the dedicated mobile experience, including the app interface and mobile-focused features. The website gives users a fast calculator before or without installation.
Is there an iPhone version?
The iOS app is not live yet, so the App Store button shows a coming-soon message.
Prefer Calqen on your phone?
Install the official Android app from Google Play and keep the calculator with you.