Investment Calculator
Calculate investment from your own entered figures.
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Currency: Amounts are calculated in the currency you select; this site does not convert between currencies and does not use live exchange rates.
What this tool does
Calculate investment from your own entered figures. A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.
How to use the Investment Calculator
- Enter or select initial investment.
- Enter or select monthly contribution.
- Enter or select expected annual return (%).
- Enter or select years invested.
- Read the calculated result; change any measurement to compare alternatives.
Formula
monthly equivalent rate i = (1 + annual return)^(1/12) − 1; FV = P(1+i)^(12·years) + contribution·(((1+i)^(12·years) − 1)/i)
- initial
- Initial investment
- monthly
- Monthly contribution
- rate
- Expected annual return (%)
- years
- Years invested
A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.
Worked example
For investment calculator, the following measurements illustrate the exact method: Initial investment: 10000; Monthly contribution: 500; Expected annual return (%): 7; Years invested: 20.
Inputs
- Initial investment10000
- Monthly contribution500
- Expected annual return (%)7
- Years invested20
Result
- Projected investment value$292,465.03
- Total contributions$130,000.00
- Investment growth$162,465.03
Results explained
- Projected investment value
- Projected investment value from the formula above. A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.
- Total contributions
- Total contributions from the formula above. A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.
- Investment growth
- Investment growth from the formula above. A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.
Frequently asked questions
monthly equivalent rate i = (1 + annual return)^(1/12) − 1; FV = P(1+i)^(12·years) + contribution·(((1+i)^(12·years) − 1)/i)
A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.
No. All numbers are entered by you or come from the dated reference table shown on this page; calculations run locally.
This is an estimate, not financial, tax or legal advice. Verify the inputs and output with official sources and a qualified professional.
Check period consistency, currency, percentage inputs and the assumptions: A single constant return is assumed; real markets vary year to year, and taxes, fees and inflation are not modelled.