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Project ROI calculator

Compute profit and return on investment from cost and revenue.

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ROI calculator (return on investment)Work out your return on investment as a percentage from the amount invested and the amount returned.Side hustle ROI calculatorIs your side hustle actually worth it? From revenue, running costs, hours and any start-up spend, it works out profit, the return on investment, and your real hourly rate — then compares that against your day-job wage so you can see if the time pays off.Average collection period calculatorHow many days, on average, it takes to collect payment after a credit sale: average receivables ÷ net credit sales × days in the period. A lower number means faster cash collection and healthier cash flow.Calendar event (.ics)Create a calendar event and download it as an .ics file for any app.Capacity utilization calculatorCompute how much of your production capacity is actually being used.Capital employed calculatorCapital employed — the total capital a business uses to generate profit — by any of the three standard methods: total assets minus current liabilities, non-current assets plus working capital, or equity plus non-current liabilities. Add operating profit (EBIT) and it also returns the ROCE.Cash Ratio CalculatorDivide cash and marketable securities by current liabilities — the strictest liquidity test, with the share of short-term debt payable today.Cost of goods sold (COGS) calculatorCompute cost of goods sold from beginning inventory, purchases and ending inventory.

Project ROI calculator works straight from this page — free, instant, nothing to install. You will find it under Planning & operations, with ROI calculator (return on investment) and Side hustle ROI calculator for the neighbouring cases.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is Project ROI calculator?

Compute profit and return on investment from cost and revenue.

When would I actually use this?

Running the week: issuing an invoice or a quote, knowing what is in stock and what to reorder, and seeing whether cash covers what is due.

What is the most common mistake?

Reading profit as cash. A profitable month with sixty-day payment terms can still leave the account empty — the two numbers answer different questions.

How is Project ROI calculator different from ROI calculator (return on investment)?

They sit next to each other but answer different questions: ROI calculator (return on investment) is the one to open when you need it to work out your return on investment as a percentage from the amount invested and the amount returned. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Side hustle ROI calculator is the closest one after this: Is your side hustle actually worth it? From revenue, running costs, hours and any start-up spend, it works out profit, the return on investment, and your real hourly rate — then compares that against your day-job wage so you can see if the time pays off.

Where do the figures come from?

The arithmetic is exact for what you enter. Invoice content, VAT treatment and mandatory mentions are set by national rules — an invoice that computes correctly can still be non-compliant.

Further reading

All guides →
GuideCosting the Return of an Internal Project That Generates No RevenueThe migration, the tooling change, the process fix: the most common business case there is and the least documented. The value is avoided cost plus recovered time — and on a $130,000 migration, 60.5 % of the recovered hours have to be genuinely redeployed before the five-year net present value even reaches zero.How-toWhat Is ROI and How Do You Calculate It?ROI measures your gain relative to what you invested, as a percentage. Here's the formula, a worked example, and what ROI leaves out.ExplainerReturn on Assets: What the Ratio Says About a Business, and What It HidesReturn on assets, return on net assets and return on capital employed are one family with two moving parts. On the same balance sheet they read 8.3%, 10.2% and 15.6% — and the two steps between them are exactly the two decisions you are making.ExplainerWhy the Payback Period Lies When the Cash Flows Are UnevenIt throws away everything after the cut-off, ignores the time value of money, and ranks a project that returns early and then dies above one that returns steadily. Computed: payback prefers the worse project by 1.33 years while net present value prefers the better one by $19,571. And the popular shortcut — one divided by the payback — overstates the true return by 17 points on a five-year asset.ExplainerThe Side-Activity Threshold Is a Rate, Not an AmountEveryone asks from what turnover a side activity starts to pay. The question has no answer, because the number that decides it is what an hour of yours is worth — and once that is in the calculation, the threshold stops being a sum of money and becomes a rate per hour that does not move with volume.ExplainerProcess Capability: Cp, Cpk and What Six Sigma Actually ClaimsCp compares the spec width to the process spread; Cpk penalises being off-centre. A process can have an excellent Cp and still make scrap — here is the case, with defect rates computed from the normal distribution rather than read off a table.