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Automation ROI Calculator

Find out how fast automation pays for itself.

How it is calculated

The tool turns saved hours into money and compares that with the upfront cost. monthly savings = hours saved per month × hourly cost, annual savings = monthly savings × 12 and payback = automation cost ÷ monthly savings, shown in months to one decimal. Amounts are in dollars. Hourly cost should be the full cost of an hour of the person's time, not only the wage. The tool counts only that labour saving and the one-off cost, so ongoing subscriptions, maintenance, error reduction and the time to build the automation are not included unless you fold them into the figures. If monthly savings are zero, the payback shows ∞ (it never pays back). Negative values or an empty field give no result.

Worked example

An automation saves 20 hours a month of work that costs 35 an hour, and the setup costs 4000. Step 1: monthly savings = 20 × 35 = $700.00. Step 2: annual savings = 700 × 12 = $8,400.00. Step 3: payback = 4000 ÷ 700 = 5.7 mo. After about six months the savings have covered the setup cost, and everything after that is net gain, before any running costs. If it saved 0 hours, the payback would show ∞.

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Common mistakes

  • Using the hourly wage instead of the full hourly cost. Employer taxes, benefits and overhead make an hour cost more than the pay rate.
  • Counting hours saved that nobody actually frees up. If the time saved is spread across many people in small pieces, it may not turn into real cost savings.
  • Ignoring ongoing costs. A tool with a monthly fee needs that fee subtracted from the savings, or the payback will look too good.
  • Entering yearly hours in the monthly field. The input is hours per month, so 240 hours a year is 20.
  • Reading a short payback as a guarantee. The result depends on the hours saved holding steady over time, which should be checked after launch.

About this calculator

The return on investment for automation is typically judged by its payback period: how many months it takes for the recurring savings generated by automating a manual task to cover the upfront cost of the tool, software, or setup. It is calculated by dividing the upfront automation cost by the monthly savings it produces (usually from reduced labor hours or error correction).

Businesses use this simple payback math to prioritize which manual processes are worth automating first — a task that pays for its automation in two months is a far easier decision than one that takes three years. Divide the upfront cost of automating a task by what it saves each month and you know how many months it takes to pay for itself, and what it keeps saving after that.

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