Free ROI Calculator Template (Excel)
How to Calculate ROI in Excel (Formula Breakdown)
ROI is net profit divided by total cost: what you got back, relative to what you put in. Total cost adds your one-time cost to your recurring monthly cost times the number of months you're analyzing. Net profit is total benefit minus total cost. Payback period is total cost divided by monthly benefit - how many months until the investment pays for itself.
Building those four formulas correctly, and keeping them consistent if you tweak an input, is where a blank spreadsheet gets error-prone. This template has the chain already wired: change an input and every downstream number - total cost, total benefit, net profit, ROI, payback - updates with it.
What's Inside the Free ROI Calculator Template
One sheet, laid out in blocks: Investment costs (one-time cost, recurring monthly cost, months analyzed), Returns (monthly benefit - revenue or savings), and Results (total cost, total benefit, net profit, ROI, payback period).
Every block has three value columns - Best case, Expected, and Worst case - so you fill in the same inputs three times with different assumptions and read three sets of results side by side.
Comparing Best, Expected and Worst-Case Scenarios
Rather than one ROI number you have to trust blindly, you get three: what the investment looks like if things go well, if they go as planned, and if they go poorly. Change the cost or benefit assumption in any one column and only that column's results move.
That side-by-side view is what tells you whether an investment is a safe bet even in the worst case, or one that only pencils out if everything goes right.
One-Time vs Recurring Cost Breakdown
Costs get split into a one-time cost (setup, purchase, implementation) and a recurring monthly cost, multiplied by the number of months you're analyzing. Lumping everything into a single "total cost" number, which is what a lot of quick ROI math does, hides whether your cost is mostly upfront or mostly ongoing.
Keeping the two separate also makes it easier to test what happens if the project runs longer or shorter than planned - you only need to change the months field, not rebuild the total cost by hand.
How to use it
- Enter costs (one-time and recurring monthly) and the monthly benefit for each scenario column.
- Best, Expected, and Worst-case ROI, net profit, and payback period calculate side by side.
- Compare the three scenarios before committing to the investment.
Download the free Free ROI Calculator Template (Excel)
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Frequently asked questions
Can I use this ROI template in Google Sheets?
Yes. Upload the downloaded file to Google Drive, then open it and choose File > Save as Google Sheets. All the formulas keep working.
Does it include a chart comparing the three scenarios?
No. The Best, Expected, and Worst-case columns sit side by side in one table so you can compare the numbers directly - there's no built-in chart in this version.
Can I model more than three scenarios?
The template ships with Best/Expected/Worst columns built in. You can add another column and copy the formulas across if you need a fourth scenario.
Does it handle discounted cash flow, NPV, or IRR?
No. This is a straightforward ROI and payback period calculator based on total cost and total benefit, not a discounted cash flow model. For NPV or IRR analysis you'd need a dedicated finance template.
What's the usage license?
Personal use or use within one business. It's not meant to be resold or redistributed as a template product.