ROI Calculator
Available nowCalculate return on investment, investment profit, total return, and annualized ROI using your investment costs and final value.
Use calculator →Lamtas Financial Tools
Investment Calculators
Use free investment calculators to evaluate returns, estimate investment growth, understand profitability, and plan potential future investment outcomes.
Investment calculators for smarter financial decisions
Whether you are evaluating an investment opportunity, comparing returns, planning long-term growth, or reviewing an existing portfolio, these tools can help turn financial assumptions into useful estimates.
Investment Growth Calculator
Coming soonEstimate how an investment may grow over time using an initial amount, recurring contributions, expected return, and investment period.
More tools coming soonAnnualized Return Calculator
Coming soonConvert an investment overall return into an annualized rate to make returns easier to compare across different investment periods.
More tools coming soonInvestment calculator categories
Lamtas is building a comprehensive collection of investment tools covering returns, growth, portfolios, contributions, and financial planning.
Return & ROI Calculators
Measure investment performance, profitability, percentage returns, and annualized investment results.
ROI Calculator
Annualized Return Calculator
Total Return Calculator
Investment Return Calculator
Investment Growth Calculators
Estimate how invested capital can grow through time, recurring contributions, and compound returns.
Investment Growth Calculator
Compound Growth Calculator
Future Value Calculator
Recurring Investment Calculator
Portfolio Calculators
Analyze portfolio allocations, weighted returns, contributions, and investment performance.
Portfolio Return Calculator
Asset Allocation Calculator
Weighted Average Return Calculator
Portfolio Growth Calculator
Investment Planning Calculators
Explore investment amounts, time horizons, savings targets, and potential future financial outcomes.
Investment Goal Calculator
Investment Contribution Calculator
Time to Investment Goal Calculator
Required Return Calculator
Important investment metrics
Understanding the numbers behind an investment can make calculator results much more useful.
| Metric | What it means | Basic concept |
|---|---|---|
| ROI | Measures profit or loss relative to the amount invested. | (Profit ÷ Total Investment) × 100 |
| Total Return | Shows the overall gain or loss generated by an investment. | Final Proceeds − Total Investment |
| Annualized Return | Expresses an investment return as an annual rate for comparison. | Based on total return and investment period |
| Future Value | Estimates what an investment may be worth at a future date. | Depends on principal, return, contributions, and time |
| Compound Growth | Shows how returns can generate additional returns over time. | Growth is applied to accumulated value |
| Contribution | Measures additional money added to an investment during the investment period. | Sum of additional investment amounts |
Why use investment calculators?
Investment decisions often involve several variables at once. Calculators make it easier to test different assumptions and understand how changes in investment amount, return, contributions, and time may affect the outcome.
Compare investment scenarios
Test different investment amounts, expected returns, time periods, and contribution levels.
Understand potential returns
Separate total investment, profit, return, and annualized performance so that each number has a clear purpose.
Support financial planning
Use estimates to explore potential targets and understand the relationship between money, time, and investment growth.
Make assumptions visible
Changing one assumption at a time can help you see which factors have the greatest effect on an investment scenario.
A simple investment example
Suppose an investor puts 100,000 into an investment and later receives 125,000 after accounting for the relevant proceeds. The investment profit is 25,000.
Initial investment100,000
Final proceeds125,000
Investment profit25,000
Simple ROI25%
This example illustrates basic ROI. A complete investment analysis may also consider investment duration, fees, taxes, inflation, cash flows, risk, and other factors.
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Compound Interest Calculator
Calculate how an initial investment and recurring contributions can grow through compound interest.
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Explore tool →Percentage Calculator
Calculate percentages, percentage changes, increases, decreases, and percentage differences.
Explore tool →Investment Calculator FAQs
Common questions about investment returns, growth, and financial estimates.
What is an investment calculator?
An investment calculator is a financial planning tool that helps estimate investment returns, growth, profits, future values, contributions, or other investment outcomes based on information entered by the user.
What can an investment calculator help me calculate?
Investment calculators can help estimate ROI, investment profit, total return, annualized return, future value, compound growth, required contributions, portfolio performance, and investment targets.
How is ROI calculated?
A basic ROI calculation divides investment profit by the total amount invested and multiplies the result by 100. For example, an investment of 100,000 that produces 20,000 in profit has an ROI of 20%.
What is the difference between ROI and annualized return?
ROI measures the overall return relative to the amount invested. Annualized return adjusts the investment result for the length of time the money was invested, making it more useful when comparing investments held for different periods.
Why does investment time matter?
Time can significantly affect investment outcomes because returns may compound. A longer investment period can allow gains to remain invested and potentially generate additional gains.
Are investment calculator results guaranteed?
No. Calculator results are estimates based on the assumptions and figures entered. Actual investment performance can differ because of market movements, fees, taxes, inflation, currency changes, timing, and other factors.
Need help with financial or business analysis?
Lamtas provides finance, accounting, research, consulting, business support, and other professional services for individuals, entrepreneurs, startups, organizations, and businesses.
Investment calculator results are estimates for informational and planning purposes. They are not guarantees of investment performance or financial advice. Actual results can vary because of market conditions, fees, taxes, inflation, currency movements, timing, risk, and other factors.