DailyCalcNest

ROI Calculator

Measure whether a purchase, campaign or project paid off, then annualize the return so that options of different lengths can be compared fairly.

Include purchase, setup, training and running costs.

Extra profit or savings generated, plus any resale value.

Needed for the annualized figure. Partial years such as 0.5 are fine.

Your results

Return on investment
30%
Net gain
$6,000.00
Annualized return
14.02%

The calculator opens with example values; type over them. Results update as you type and stay in your browser. This is a planning tool for business decisions and does not provide investment advice.

Why time matters

A 30% return sounds the same whether it took one year or five, but those are very different results. The annualized figure converts the total to a yearly rate, assuming steady compounding, so you can compare a one-year marketing project with a three-year equipment purchase on similar terms.

The main risk with ROI lies in what goes in. It is easy to leave out staff time, training or running costs, and easy to credit a project with sales it did not cause. Be strict about both sides, as a rough estimate can look precise when it is expressed as a percentage.

The formulas

ROI

ROI % = (Value returned − Amount invested) ÷ Amount invested × 100

Annualized return

Annualized % = ((Value returned ÷ Amount invested) ^ (1 ÷ Years) − 1) × 100

Worked example

A bakery spends $20,000 on a new oven and estimates it will produce $26,000 of added profit and savings across 2 years.

  1. Net gain: $26,000 − $20,000 = $6,000.00.
  2. ROI: $6,000 ÷ $20,000 = 30%.
  3. Annualized: (1.30 ^ ½) − 1 = 14.02% per year.

What ROI leaves out

  • Timing of cash. Two projects with the same ROI can differ if one pays back early and the other only at the end.
  • Risk. A safe 12% and a speculative 12% are not equal.
  • Financing cost. If you borrow to invest, compare the return with the cost from the loan calculator.
  • Non-financial effects. Reduced stress and better service can matter, but they do not appear in this calculation.

Frequently asked questions

What is a good ROI?

One that beats your other realistic uses of the money, given the risk. At the least, it should exceed the cost of any funds you borrow.

Should I use revenue or profit as the value returned?

Profit or savings. Counting revenue ignores what it cost to deliver those sales, and would overstate the result. For marketing, use the gross profit on the sales the campaign generated.

Can ROI be negative?

Yes. A negative figure means you got back less than you put in. At −100%, the entire investment is lost.

How is ROI different from payback?

ROI measures how much you gained overall. Payback measures how quickly you recover your money. Both are useful, and short payback periods are especially valuable when cash is tight.