Investment Growth Calculator
Compare two growth scenarios with recurring contributions.
Inputs
Results & Visuals
How to Use This Tool
- Provide initial amount, monthly contribution, and return assumptions.
- Optionally add a second scenario for comparison.
- Visualize both growth curves on one chart.
Common Use Cases
- Scenario analysis
- Aggressive vs conservative planning
- Portfolio projection storytelling
Important Notes
- Comparative scenarios are deterministic, not Monte Carlo simulations.
- Use multiple assumptions to stress-test outcomes.
- Rule: scenario simulation compounds monthly with recurring monthly additions.
- All calculations run fully in your browser. Inputs are not sent to our server.
- Safe and free to use: no login, no signup, no paywall.
- Country and currency presets are for planning support and may require local verification.
- If you find a bug, please report it in comments with sample input and expected output.
Comments & Discussion
Facing issues? Have questions? Post them here! We're happy to help!