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AI Automation ROI Calculator

See what automating your manual workflows would actually save — payback period, yearly savings, and 3-year return. Defaults are grounded in our published benchmark data from 1,000+ projects, not vendor fantasy numbers. Everything runs in your browser; nothing you enter is stored or sent anywhere.

Your manual workload

Total across everyone involved — data entry, copy-pasting between systems, drafting routine emails, processing documents, answering repeat questions. Our benchmark average is ~40 hrs/week per automation programme.
Salary + taxes + benefits + overhead (typically 1.25–1.4× the raw wage).
How much of that work AI can realistically take over. Document-heavy, rule-based workflows: 80–95%. Judgement-heavy work with human approval gates: 50–70%.
Typical fixed-price bands from our delivered projects. Running costs (AI API usage + monitoring) are included in the maths at 15% of build cost per year.
Payback period
Benchmark range across 1,000+ projects: 3–6 months.
Annual cost of manual work
What the status quo silently costs every year.
Yearly savings after automation
Net of estimated AI running costs.
First-year ROI
Savings vs. build + running cost, year one.
3-year net savings
After all build and running costs.

How this calculator works (and why you can trust it)

Most vendor ROI calculators are marketing theatre: they assume 100% automation coverage, ignore running costs, and quietly use unloaded salaries. This one does the opposite. It multiplies your team's weekly manual hours by a loaded hourly cost to get the true annual cost of the status quo, applies a realistic automation coverage rate (capped at 95% — full automation is a myth in workflows that matter), subtracts ongoing AI running costs estimated at 15% of build cost per year, and compares the result against fixed-price build bands taken from our published benchmarks across 1,000+ delivered projects since 2015.

If your result shows payback under 6 months, you are in the territory where the median SpiderHunts automation project lands. If it shows payback over 18 months, automation may genuinely not be worth it for that workflow yet — and if you book a call, we will tell you exactly that. An honest "no" costs us a project and earns us a referral; we have run on that trade since 2015.

Useful next reads: the complete guide to AI automation, 10 tasks to automate right now, and our full AI automation pillar guide.

FAQ

How is the ROI calculated?

Annual manual cost = weekly hours × loaded hourly cost × 52. Savings = annual manual cost × automation coverage − running costs (15% of build per year). Payback = build cost ÷ monthly savings. First-year ROI = (savings − build − running) ÷ (build + running). No compounding tricks, no inflated assumptions.

Are the benchmark numbers real?

Yes — defaults come from our published AI Automation ROI Benchmarks report (2026) covering 1,000+ delivered projects: typical first-year ROI ~38%, payback in 3–6 months, ~40 hours/week of manual work eliminated per programme.

Is this calculator really free?

Yes — no signup, no email gate. It runs entirely in your browser; nothing you enter is stored or sent to any server.

What counts as a loaded hourly cost?

Salary plus employer taxes, benefits, equipment and overhead — typically 1.25–1.4× the raw hourly wage. Using loaded cost gives a truthful picture of what manual work actually costs.