Calc ProScientific Calculator for iPhone, iPad, Mac & Android
A full scientific calculator in your pocket. Trigonometry, logarithms, powers, roots and factorials, with RPN mode and nearly 2,000 built-in constants, trusted by students, engineers and scientists.
Take it with you
Free with ads · In-app purchase unlocks the full Pro Premium version
Scientific Calculator Features
Trig, logs and powers
sin, cos and tan with their inverses, log, ln, 10ˣ, eˣ, x², xʸ, roots, factorials and more.
2ndF and Hyp keys
Unlock inverse and hyperbolic functions with the 2ndF and Hyp keys.
Degrees, radians and gradians
Switch angle modes with the DRG key.
RPN mode
Prefer Reverse Polish Notation? Switch to RPN, or choose simple, algebraic, direct algebraic or expression entry.
Built-in constants
Insert π, e or any of nearly 2,000 scientific constants straight into your calculation.
Five display formats
Normal, scientific, engineering, fractions, or fixed from 2 to 10 decimal places.
Great for
- Physics and chemistry homework
- Trigonometry and calculus
- Engineering calculations
- Lab work
Frequently Asked Questions
Does Calc Pro have an RPN mode?
Yes. The Scientific Calculator includes RPN mode. You can also choose simple, algebraic, direct algebraic or expression entry.
Can I calculate in radians?
Yes. Use the DRG key to switch between degrees, radians and gradians.
Can I use scientific constants in calculations?
Yes. Tap const to insert values like the speed of light or Avogadro's number from Calc Pro's library of nearly 2,000 constants.
Is Calc Pro free?
Calc Pro is a free download for iPhone and iPad on the App Store and for Android on Google Play and the Galaxy Store, supported by ads. The Pro Premium in-app purchase unlocks the full version, including crypto rates, PDF export, and the newest financial worksheets, unit categories, constants and statistics tools. The Mac app has no ads: it starts with a free 7-day trial of everything, then needs Pro Premium.
Is Calc Pro available on Android?
Yes. Calc Pro is available on Google Play for Android phones and tablets, and on the Galaxy Store for Samsung Galaxy devices.
Is Calc Pro available on Mac?
Yes. Calc Pro for Mac is on the Mac App Store. It has no ads and starts with a free 7-day trial of every feature. After that, Pro Premium unlocks it. It's the same one-time purchase as on iPhone and iPad, so if you've already bought Pro Premium there, restore it on your Mac at no extra cost.
More in Calc Pro
Download Calc Pro
Calc Pro combines 10 powerful calculators with 23 financial worksheets. It's the trusted choice of students, professionals, and investors worldwide, and the only app that can truly replace your pocket calculator. Now with support for iPhone Duo.
Free with ads · In-app purchase unlocks the full Pro Premium version
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