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As a side benefit of this calculator's date accuracy, you can also use it to do date math calculations. That is, it will find the date that is "X" days from the start date or given two dates, it will calculate the number of days between them.

Calendar Tip: When using the calendar, click on the month at the top to list the months, then, if needed, click on the year at the top to list years. Click to pick a year, pick a month, and pick a day. Naturally, you can scroll through the months and days too. Or you can click on "Today" to quickly select the current date.

If you prefer not using a calendar, single click on a date or use the [Tab] key (or [Shift][Tab]) to select a date. Then, as mentioned, type 8 digits only - no need to type the date part separators. Also, because the date is selected, you do not need to clear the prior date before typing. If your selected date format equals mm/dd/yyyy, then for March 15, 2016, type 03152016.

Updated 09/15/2019: Your desired ROR

At some point, a user might need to know what they should pay for an investment to achieve a desired return-on-investment. Or what they need to sell it for if they have already entered into the invesetment.

With the most recent update, this calculator can now perform either calculation. All the user need do is provide the goal ROI (and click "Calc" to update). The calculator calculates the adjustment amount required for both the initial investment and the final value. It also calculates the absolute amount for both.

To double-check the accuracy of the results, copy and paste the value into the appropriate location and recalculate. The ROI should now equal your goal ROI (plus or minus a minimal rounding amount).

And now for an essential word about ROI/ROR financial calculators.

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141 Comments on “Roi Calculator”

financial online calculator Join the conversation. Tell me what you think.
  • If i invest $100,000 for 36 months and I get $140,000.00 at the end of my investment, what is my Rate on Return on an annual basis?

  • If I invest $520,000 and I have annual overhead of $458,000/year and a profit of $600,000/year what would my ROI be over 5 years and 10 years?

    • Since you are dealing with cash flows, you shouldn’t (can’t) use this calculator. Please use the IRR Calculator. IRR is an annualized return-on-investment calculation.

      If you try the calculator, I think you’ll probably want to set the cash flows to annual.

      You’ll enter $-520,000 as the initial investment (investments and expenses are entered as negative values), while returns are entered as positive values.

      Do you take the profits out each year? Or are they retained. If retained, you’ll enter your expenses each year, and the sum or the profits as an ending value (+) at 5 years and 10 years.

      Hope this gets you started.

  • If my investor wants 10% interest on his 18 month $600,000 investment. How am I to calculate this?
    Amount Invested (PV)?: $600,000.00
    Amount Returned (FV)?: $692,304.00 OR $660,000 *
    Days (-9,999 < # 1969)?: 10/15/2019
    End Date (year < 2100)?: 04/15/2021
    Gain or Loss: $92,304.00 OR $60,000 *
    Percentage Gain or Loss: 15.3840% OR 10% *
    Annualized Return (ROI): 10.0000% OR 6.5540% *
    Total Years: 1.5

    • The answer to your question depends on what your investor means when he says he "want 10% interest on his 18 month investment?"

      Does he want 10% on an annualized basis? Then the answer is $692,304.

      Or does he want a 10% gross return on his investment. Then the answer is $660,000. If your investor means this, then he is very generous, because if the payment slips to say June 15, 2021, the amount returned would not change.

      Usually investors think in annualized terms when they are thinking about interest earned. Specifying an annual interest rate allows them to compare two investments with different terms.

    • I’ll point one other thing out too. A 10% ROI is not exactly the same thing as a 10% interest rate. An interest rate gets into details about compounding and day count methods. An ROI or IRR (internal rate of return) eliminate these details from the calculation.

      I’m mentioning this in case you consider this to be a loan. You can use this calculator to create a loan and have the calculator calculate the single payment amount with a 10% annual interest rate, and you’ll get a different answer than $692,304 – for the reasons mentioned. Neither answer is wrong. What it comes down to, is you both agreeing on what is meant.

Comments, suggestions & questions welcomed...

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