Tool vs Tool

ROI Calculator vs Investment Calculator

Compare Return on Investment analysis with investment growth projections. Understand when to measure past returns versus plan future wealth building.

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ROI Calculator

Calculate return on investment, annualized ROI, and compare investments

Investment Amount ($)

Final Value ($)

Time Period

Period Unit

Return on Investment

+50.00%

Annualized ROI

+14.47%

Total Return

+$5,000.00

Final Value

$15,000.00

ROI = ($15,000.00 - $10,000.00) / $10,000.00 = 50.00%

Break-Even & Rule of 72

Years to Double (Rule of 72)

5.0years

72 / 14.5 = 5.0 years

Rule of 72 Explained

Divide 72 by the annual return rate to estimate how many years it takes to double your investment. This is a quick approximation that works best for rates between 6% and 10%.

Investment Growth Over Time

$0$7.5K$15.0K

Initial investment: $10,000.00

What If? ROI Comparison (3 years)

Annual Rate	Final Value	Profit	Total ROI
2%	$10,612.08	+$612.08	+6.12%
5%	$11,576.25	+$1,576.25	+15.76%
7%	$12,250.43	+$2,250.43	+22.50%
10%	$13,310.00	+$3,310.00	+33.10%
12%	$14,049.28	+$4,049.28	+40.49%
15%closest	$15,208.75	+$5,208.75	+52.09%
20%	$17,280.00	+$7,280.00	+72.80%
25%	$19,531.25	+$9,531.25	+95.31%

Based on an initial investment of $10,000.00 over 3 years, compounded annually.

Compare Multiple Investments

Name

Invested ($)

Final Value ($)

Name

Invested ($)

Final Value ($)

Investment A+40.00%

Invested: $10,000.00Return: +$4,000.00Annualized: +11.87%

Investment B+65.00%

Invested: $10,000.00Return: +$6,500.00Annualized: +18.17%

Investment B has the highest ROI at 65.00% (18.17% annualized)

Annualized returns are calculated using the time period above (3 years).

How ROI is Calculated

Basic ROI Formula

ROI = (Final Value - Investment Cost) / Investment Cost x 100%

Annualized ROI

Annualized ROI = ((Final / Initial) ^ (1 / Years) - 1) x 100%

Accounts for compounding and allows comparison of investments with different time horizons.

Rule of 72

Years to Double = 72 / Annual Return Rate

A quick way to estimate doubling time. At 8% annual return, it takes approximately 72/8 = 9 years to double.

Open full ROI Calculator page

Investment Calculator

Calculate investment growth with monthly contributions and dividends

Portfolio Strategy

Initial Investment ($)

Monthly Contribution ($)

Expected Annual Return (%)

Investment Period (Years)

Dividend Yield (%)optional

Adjust for inflation

Final Portfolio Value

$385,612

after 20 years of investing

Total Contributions

$130,000

Total Investment Returns

$201,226

Total Dividends

$54,386

Returns as % of Total

66.3%

Portfolio Composition

Contributions: 33.7%

Returns: 52.2%

Dividends: 14.1%

Impact of Monthly Contributions

With $500/mo Contributions

$385,612

Without Monthly Contributions

$40,387

Monthly contributions of $500 add $345,224 to your portfolio over 20 years — that is 855% more than investing the lump sum alone.

Portfolio Growth Over Time

Contributions

Returns + Dividends

Without contributions (hover)

$0$193K$386K

Year-by-Year Growth (20 years)

Year	Contributions	Year Returns	Dividends	Balance
1	$16,000	$955	$200	$17,155
2	$22,000	$1,473	$343	$24,971
3	$28,000	$2,038	$499	$33,508
4	$34,000	$2,655	$670	$42,833
5	$40,000	$3,329	$857	$53,018
6	$46,000	$4,065	$1,060	$64,144
7	$52,000	$4,869	$1,283	$76,296
8	$58,000	$5,748	$1,526	$89,570
9	$64,000	$6,707	$1,791	$104,069
10	$70,000	$7,756	$2,081	$119,906
... 7 more years ...
18	$118,000	$20,487	$5,604	$312,273
19	$124,000	$22,807	$6,245	$347,325
20	$130,000	$25,341	$6,946	$385,612

Portfolio Strategy Comparison

Conservative (5%)

$304,336

Balanced (7%)

$399,201

Selected

Growth (10%)

$612,821

Aggressive (12%)

$826,051

Disclaimer: This calculator provides estimates for educational purposes only. Past performance does not guarantee future results. Actual investment returns will vary due to market conditions, fees, taxes, and other factors. This is not financial advice. Consult a qualified financial advisor for personalized investment guidance.

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Detailed Comparison

The ROI (Return on Investment) Calculator and the Investment Calculator both deal with investment returns, but they face opposite directions in time. The ROI Calculator is backward-looking: it takes your initial investment cost and your final return (or current value) and calculates the percentage gain or loss. It answers the question: how well did this investment perform? It is used to evaluate completed investments, compare the profitability of different business decisions, and assess whether a past allocation of capital was worthwhile.

The Investment Calculator is forward-looking: it takes your starting capital, expected return rate, contribution schedule, and time horizon, then projects your future portfolio value. It answers the question: how much will my money grow if I invest consistently over time? It is used to plan retirement savings, set financial milestones, and understand how different contribution levels affect long-term wealth.

The ROI Calculator is simple but powerful for comparison purposes. Was buying that rental property more profitable than investing in index funds? Did the marketing campaign generate positive returns? The Investment Calculator is more complex and models the ongoing journey of wealth accumulation with regular contributions and compounding.

When to Use Each Tool

When to Use ROI Calculator

Use the ROI Calculator to evaluate the performance of a past investment, compare returns across different asset classes, assess the profitability of a business expenditure, or determine the percentage return on a marketing campaign, equipment purchase, or real estate investment.

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When to Use Investment Calculator

Use the Investment Calculator to project future portfolio growth with regular contributions, plan how much to save monthly to reach a financial goal, model different scenarios for retirement savings, or understand how changing your contribution amount or expected return rate affects your long-term wealth trajectory.

Try Investment Calculator

Our Verdict

Use the ROI Calculator to evaluate what has already happened — measuring the success of past investments and decisions. Use the Investment Calculator to plan what comes next — projecting future growth and setting savings targets. Together, they help you learn from past performance while planning your financial future.

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ROI Calculator vs Investment Calculator

ROI Calculator

Investment Calculator

Detailed Comparison

When to Use Each Tool

When to Use ROI Calculator

When to Use Investment Calculator

Our Verdict

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