CalcPenny

A suite of free financial calculators that provide instant answers for loans, savings, debt, investing, and retirement. It solves the problem of complex financial planning by offering simple, browser-based tools that explain results in plain English. The target audience is anyone making everyday money decisions, including individuals and families, regardless of company size. It is positioned as a private, no-sign-up alternative to traditional financial tools, with all calculations running locally in the user's browser.

Key features

• Instant results with sliders
• Charts and plain-English explainers
• No sign-up required
• 100% private, runs in browser
• Works on any device
• Supports any currency
• Covers loans, savings, debt, investing, retirement
• Includes amortization schedules
• Compares loan offers side by side
• Calculates mortgage affordability
• Estimates retirement savings by age
• Provides debt payoff strategies (snowball vs avalanche)
• Includes inflation calculator
• Offers net worth calculator