calculate Free · the math is not gated

The AI ROI Calculator

Vendors quote 300% ROI studies. Your books don't care. Put in your own numbers and get the day-90 math — the same formula from the AI ROI guide, computed live.

Your numbers

Hours per week the workflow would save

Measured, not guessed — one week of tally marks is enough.

Loaded hourly rate ($)

Salary plus overhead of whoever does it — or your own effective rate.

Monthly AI spend ($)

Subscriptions plus a monthly slice of any build or setup cost.

Attributable monthly revenue ($) — optional

Only revenue you can actually trace to the workflow. When in doubt: zero.

What the math says

Day-90 ROI

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Pays for itself by

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Hours back / yr

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Value / month

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ROI = (hours × rate + attributable revenue − cost) ÷ cost, over 90 days. Payback = weeks of returned value to cover one month's spend.

Want this in writing?

I'll email you the personalized breakdown — your numbers, the day-90 math step by step, the costs everyone forgets to count, and when the math says don't. One email, no drip campaign ambush.

The calculator stays free either way. No spam — one-click unsubscribe.

Justin McKelvey

15 yrs shipping software · 50+ products

One-time · $29

Know the payback before you spend a dollar on AI.

The day-90 ROI calculator as a spreadsheet you keep
Workflow-Picker Scorecard + 3 worked payback examples at real 2026 prices
10 owner-level automation recipes with the math built in

Continue → 30-day money-back guarantee

Instant access — your link lands on the next screen and in your email.

Three rules that keep the number honest

Measure the hours before you automate. One ordinary week of tally marks on the workflow. If you didn't measure the before-state, you're not measuring ROI — you're narrating a feeling.

Count every cost. Subscriptions, build fees, and your own setup and prompt-fiddling hours at your loaded rate. An automation that saves your assistant 3 hours but costs you 2 is not a 3-hour win.

Check it at day 90. Long enough for the novelty to wear off, short enough to kill what's not working before it fossilizes into a forgotten subscription.

Full walkthrough with a worked example: AI ROI: the only formula that works for a small business. Not sure which workflow to run through this? What to automate first.

Want the measurement done for you?

The calculator does one workflow. The AI Readiness Assessment does your whole business: $2,500 flat, two weeks, a written roadmap with the ROI math per workflow — and the fee is credited in full against any build within 90 days.

See the Assessment arrow_forward

One-time · $29

Know the payback before you spend a dollar on AI.

Continue →

Instant access · 30-day money-back guarantee · the free stuff stays free

One-time · $29 The AI ROI Kit — this math as a spreadsheet you keep.

Get it — $29