Compute % increase/decrease with steps and visuals; solve new/original

Percentage Increase Calculator

Calculate your annual income from hourly, weekly, monthly, or yearly pay.

Annual Income Calculator

Reduce fractions to lowest terms with steps and alternate forms

Simplify Fractions Calculator

Calculate APY from APR and compounding frequency.

APY Calculator (Annual Percentage Yield)

Simplify, expand, factor, and reduce algebraic expressions step by step

Simplify Expression Calculator

Calculate final price, savings, and discount percent for any deal.

Discount Calculator

Find doubling time from growth rate or data (N₀→N) with steps & Rule of 70/72

Doubling Time Calculator

Calculate ROI, annualized return, payback period, project ROI, and compare investments

ROI Calculator

Calculate simple, compound, and continuous interest. Solve for amount, rate, time, or contributions

Interest Calculator

Calculate price elasticity using midpoint, % change, and point methods with steps

Price Elasticity of Demand Calculator

Calculate equilibrium price, quantity, surplus, shortage, taxes, subsidies, and deadweight loss

Supply & Demand Equilibrium Calculator

Calculate percentages instantly: increase, decrease, and percent of another number

Percentage Calculator

Solve long division problems step-by-step with quotient, remainder, decimals, fractions, and full layout

Long Division Calculator

Calculate winning percentage from wins, losses, ties, projections, targets, and next-game impact

Winning Percentage Calculator

Calculate fractions step by step with mixed numbers, decimals, LCD/LCM, comparisons, and conversions

Fraction Calculator

Calculate tax incidence using equations or elasticities. Find burden, revenue, DWL.

Tax Incidence Calculator

Calculate investment growth with compound interest, monthly contributions, goals, inflation, and scenarios

Investment Calculator

Simplify ratios, solve proportions, scale ratios, split totals, compare and convert ratios

Ratio Calculator

Calculate nominal and real GDP, growth rates, and GDP per capita, with automatic stagflation and deflation alerts

GDP Calculator (Real vs. Nominal, Growth Rate)

Build the CPI from a basket of goods or two CPI values, with item-level breakdowns and inflation rates

CPI & Inflation Rate Calculator

Calculate NPV and IRR from a cash flow schedule — with MIRR, payback period, and project comparison

NPV / IRR Calculator

Find the GCF and LCM of numbers, simplify fractions, or add fractions using the LCD - with visuals

GCF & LCM Calculator

Turn economic indicators into insight - at a glance.

Use free macroeconomics calculators for GDP, inflation, unemployment, growth, and money supply metrics. Understand the big picture with numbers.

Macroeconomics Calculators & Converters | Free Econ Indicators

Make sense of GDP, inflation, and growth models. Our macroeconomics tools turn big-picture economics into understandable, actionable insights.

Macroeconomics Calculators & Converters

General Chemistry

Jules

Study the key concepts of Physics with descriptive videos, questions, and more

Physics

Patrick

General Biology

Jason

Financial Accounting

Brian

Dive deep into Psychology with videos, practice problems, and more.

Psychology

Microeconomics

The first in a two-course sequence introduces the basic structure and functions of the human body

Anatomy & Physiology

Bruce

College Algebra covers algebraic topics and skills necessary to succeed in college-level math

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB Chemistry

Dive deep into General, Organic, and Biological Chemistry with videos, practice problems, and more.

Intro to Chemistry

Microbiology

Cell Biology

Analytical Chemistry

Study topics incliding trogonometric functions, identities and equations, solutions of triangles, complex numbers, and other topics as time permits

Trigonometry

Callie

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

Precalculus

Nick

Learn the toughest concepts covered in Calculus with step-by-step video tutorials and practice problems by world-class tutors

Calculus

Learn the toughest concepts covered in Business Calculus with step-by-step video tutorials and practice problems by world-class tutors

Business Calculus

Learn the toughest concepts covered in Business Statistics with step-by-step video tutorials and practice problems by world-class tutors

Business Statistics

Learn the toughest concepts covered in Statistics with step-by-step video tutorials and practice problems by world-class tutors

Statistics

Biochemistry

Macroeconomics

Dive deep into Personal Health with videos, practice problems, and more.

Personal Health

Dive deep into Nutrition with videos, practice problems, and more.

Nutrition

Dive deep into Medical Terminology with videos, practice problems, and more.

Medical Terminology

Dive deep into Sociology with videos, practice problems, and more.

Sociology

Hannah

Dive deep into Beginning Algebra with videos, practice problems, and more.

Beginning Algebra

Dive deep into Intermediate Algebra with videos, practice problems, and more.

Intermediate Algebra

Dive deep into Beginning & Intermediate Algebra with videos, practice problems, and more.

Beginning & Intermediate Algebra

My Courses

College Courses

Professional Courses

Chemistry

Biology

Math

Social Sciences

Health Sciences

Business

Dive deep into Python with videos and more.

Introduction to Python

Arianne Dee

Agile Project and Product Management

Agile & Product Management

Mariya Breyther

Introduction to Microsoft Power BI

Microsoft Power BI

Chris Sorensen

Data Analysis Fundamentals with Excel

Data Analysis - Excel

Chris Sorensen & Ammul Shergill

Getting Started with  and Cryptocurrency

Introduction to Blockchain

George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

HTML, CSS & Layout

Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript

Introduction to JavaScript

Michael Hartl

R Programming

Jared P. Lander

Digital Marketing Analytics Beyond Advertising

Digital Marketing

Mike Moran

Project Management

Jeffrey K. Pinto

AI in Marketing

AI for Business

AI-Enabled Programming, Networking, and Cybersecurity: Introduction

Professional course with videos and more.

How LLMs Understand & Generate Human Language

Jumpstart your AI Career

Copilot for Customer Service Specialists

Copilot for Product Managers

Copilot for Human Resources Specialists

Copilot for Executive and Administrative Assistants

Copilot for Marketing Specialists

Copilot for Project Managers

Copilot for Sales Representatives and Account Managers

Copilot for Data Analysts

Copilot for Financial Analysts

Enhance Your Productivity with AI

Generative AI for Agile & Scrum Teams

Generative AI Toolbox

ChatGPT Prompt Engineering Essentials

Generative AI for Marketing Professionals (Video Course)

Copilot with Microsoft Excel: Achieve More with Your AI Assistant (Video)

AI-Enhanced Project Management

AI for Managers

Microsoft Copilot for Marketing Specialists

Microsoft Copilot for Data Analysts

AI Fluency

GenAI for Job Roles

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