The Math · AI ROI Calculator
Does this tool earn its keep?
Plug in real numbers. See payback days, 12-month net, and 3-year NPV before the next billing cycle. Math you can audit.
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Inputs
Be honest. Most owners overestimate.
Advanced
Default 48 (4 weeks off).
Receipts
Payback period
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Annual net (after tool cost)
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3-year NPV (10% discount)
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If the math works, here are the tools we think pair best:
When this number lies
- If “hours saved” comes with a learning curve, double the tool cost for the first 60 days.
- If the saved hours don’t become billable hours, your real ROI is lower — you’re just less tired.
- Anything under a 30-day payback is worth running. Anything over 90 days, sleep on it.
How this is calculated
weekly_savings = hours_saved × hourly_ratemonthly_savings = weekly_savings × 4.33monthly_net = monthly_savings − tool_monthly_costpayback_days = (tool_monthly_cost ÷ weekly_savings) × 7annual_net = weekly_savings × weeks_per_year − tool_monthly_cost × 12npv_3y = sum over 36 months of monthly_net ÷ (1 + 0.10/12)^t
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