Welcome to Let's Crunch It!

Let's Crunch It builds powerful, interactive calculators and planners to assist you in making important decisions.

If you have an idea for a calculator you would like to see built, please suggest it using the link below.

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Business

Product Adoption

Use this calculator to explore the startup of a new company or the adoption of a product in a market. Model how your product gains and loses users. Then, carry out a quick financial analysis of the viability of your business.

Product Competition

Use this calculator to explore the startup of a new company or the adoption of a product in a competitive market. This calculator models the competition between two products and the impact of network effects that make products more attractive as they gain users. Examples of the impact of network effects include social networks (e.g. Facebook vs MySpace) and the videotape war (e.g. Betamax vs VHS).

Personal Finance

Retirement Calculator

Use this planner to explore the health of your retirement plan. Estimate your retirement income and explore different investment strategies.