Skip to main content
Free Financial Web Tools

Instant, Client-Side Financial Calculators

Empower your budgeting, cash flow planning, and cost reduction with our free online calculators. Zero signup required, completely private.

100% Private (Runs In Browser)
Instant Calculations
Always Free
Most Popular

50/30/20 Budget Calculator

Split your take-home income into Needs (50%), Wants (30%), and Savings/Investments (20%). Includes custom percentage sliders and category allocations.

  • Monthly, annual & bi-weekly inputs
  • Customizable percentage split
  • Itemized category breakdown
  • Zero registration required
Open Calculator
Wealth Benchmark

Savings Rate & Financial Runway Calculator

Calculate your exact monthly savings percentage, annual cash surplus, and months of emergency runway based on your fixed living expenses.

  • Savings rate benchmark health score
  • Emergency runway duration calculation
  • 5-Year compound savings forecast
  • Actionable recommendations
Open Calculator
Cost Optimization

Subscription Cost & Recurring Leak Auditor

Audit your streaming services, software subscriptions, gym dues, and recurring memberships. Calculate annual drain and compound opportunity cost.

  • Multi-subscription aggregator
  • Annual & 5-year total drain calculation
  • Investment opportunity cost at 8% S&P 500
  • Subscription audit checklist
Open Calculator
FAQ

Frequently Asked Questions

Common questions regarding our free financial calculators and methodologies.

Yes, 100% free with no account creation, email capture, or payment required. All calculations run client-side in your web browser for complete privacy.

Start Tracking Free

Track Your Budget with Real-Time Accuracy in Expenseliy

Take your budget numbers and track them seamlessly with automated category charts and 40 free lifetime transactions.

40 free lifetime transactions
No credit card required to start
Full privacy & data isolation