About Runway Calculator
A tool to help you visualize how long your savings will last based on your expenses, income, and investment returns.
Key Features
- 💰 Asset Tracking:
Enter your current liquid assets (cash, investments) to start your calculation.
- 📊 Expense Categories:
Break down your monthly expenses across categories like Housing, Utilities, Food, etc.
- 📈 Investment Returns:
Account for potential investment returns with an annual interest rate.
- 💵 Income Tracking:
Add multiple income sources with different frequencies (monthly, yearly, or one-time).
- 🔄 Comparison Models:
Create and compare two different scenarios to evaluate different financial strategies.
How It Works
1. Enter Your Data
Start by entering your current liquid assets and monthly expenses. You can break down expenses into categories for better tracking.
2. Add Income Sources
Include any regular income or expected one-time payments to get a more accurate projection.
3. Set Investment Returns
Enter an expected annual return rate to account for potential investment growth.
4. Compare Scenarios
Use the comparison feature to evaluate different financial scenarios side by side.
Calculation Method
The calculator uses a daily compound interest model to provide accurate projections:
- Daily expenses are calculated from your monthly total
- Interest is computed daily based on your annual rate
- Income is added according to the specified frequency
- Projections run up to 24 months into the future
Data Privacy
All calculations are performed locally in your browser. Your financial data is stored only on your device using local storage and is never transmitted to any server.