Calc Pro

The Top Calculator for iPhone, iPad, Mac & Android

Calc Pro combines 10 powerful calculators with 23 financial worksheets!

Experience the ultimate calculator on your iPhone, iPad, Mac or Android device! Calc Pro also supports iPhone Duo, using the larger unfolded screen to show more at once, like the Tape View right beside the calculator. Join the millions of satisfied users worldwide who trust Calc Pro for its unrivaled power, accuracy, and advanced features. Calc Pro is the trusted choice of students, professionals, and investors worldwide. It's the only app that can truly replace your pocket calculator.

With ten (10) powerful calculators, twenty-three (23) financial worksheets, and a full statistics suite, Calc Pro truly has a calculator for every occasion. Whether you're tracking live crypto prices, planning your retirement, running a hypothesis test, or simply converting cooking measurements, Calc Pro makes it easy to solve even the toughest calculations. Get Calc Pro now and experience the power of advanced calculations at your fingertips!

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10 Powerful Calculators

Standard Calculator

Perfect for everyday calculations with a clean, intuitive interface that mirrors your favorite pocket calculator.

Scientific Calculator

Includes RPN mode and access to constants. Perfect for students and professionals working with complex equations and advanced mathematical functions.

Base Conversions

Convert between binary, octal, decimal, and hexadecimal. Essential for programmers and computer science students.

Graphing Calculator

Add up to 8 equations and graph them simultaneously.

Unit Converter

Over 6,000 conversions in 37 categories, from metric to imperial and everything in between.

World Currencies Converter

165+ world currencies updated daily, plus 50 cryptocurrencies with live rates and interactive price history charts.

Constants

Nearly 2,000 constants across mathematics, physics, the solar system, the elements, chemistry, biology, engineering, computer science, and earth science.

Financial Calculator

23 worksheets to solve everyday money questions and serious investment decisions.

Statistics Calculator

10 regression types, probability distributions, confidence intervals, and hypothesis testing, with graphing.

Date & Time Calculator

Calculate time differences, add or subtract dates, and view lunar moon phases.

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Financial Calculator Worksheets

The Financial Calculator contains 23 powerful worksheets to solve everyday money questions and serious investment decisions. Save or e-mail any worksheet as a PDF. Click any worksheet to try it free in your browser.

Loans & Mortgages

• Mortgage Calculator — full amortization tables, extra payments, and accelerated weekly/bi-weekly payment schedules
• Loan Calculator
• Credit Card Payoff worksheet
• Lease worksheet

Saving & Planning

• Time Value of Money worksheet
• Compound Interest worksheet
• Retirement Savings planner
• Savings Goal planner
• Inflation Calculator

Investing & Trading

• Cash Flow worksheet — NPV & IRR
• Bond Calculator — price & yield to maturity
• Stock Return Calculator
• Average Cost (DCA) Calculator
• Dividend Income Calculator — with reinvestment
• Options Profit/Loss Calculator
• Black-Scholes Option Pricer — with Greeks
• Position Size Calculator

Everyday & Business

• Tip Calculator
• Financial Date worksheet
• Percentage Change worksheet — nominal and effective interest rates
• Break Even worksheet
• Profit Margin worksheet
• Depreciation worksheet

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Statistics Calculator

The Statistics Calculator goes far beyond the basics:

• 10 regression models, linear through quartic and logistic
• Single-variable analysis with frequency data
• Descriptive statistics, including quartiles, skewness, kurtosis, and more
• Probability distributions: Normal, Binomial, Poisson, Student's t, and Chi-square
• Confidence intervals and one- and two-sample hypothesis tests

E-mail or save your full results as a PDF.

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Advanced Features & Customization

Display Options

Five display options: normal, scientific, fractions, engineering, and fixed (2-10 decimal places).

Calculator Modes

Five calculator modes: simple, algebraic, direct algebraic, expression, and RPN.

Customization

Choose from several skin styles and color schemes.

Advanced Graphing

Simultaneous graphs, find points on the graph, and show tangents. E-mail your equations and graph image.

Tape View

Tape View displays your recent equations and allows you to copy or e-mail them.

Supported Languages

English, German, Spanish, Portuguese, French, Italian, Dutch, Japanese, Simplified & Traditional Chinese, Korean, and Russian.