::calculator · Honest annual return on adopting AI for your job or business
AI ROI Calculator
::inputs
Use your billable rate or salary/2080. Be honest, not aspirational.
Steady-state hours AI absorbs per week, not week-one fantasy.
Subscription or projected API spend. June 2026: Claude 3.5 Sonnet $3/M in + $15/M out; GPT-4o $2.50/M + $10/M; Gemini 1.5 Pro $1.25-5 + $5-15.
Onboarding, prompt-craft, integration, debugging. Most people underestimate this 2-3x.
Discount factor on your hours-saved number. 100% = certain. 70% = reasonable. Below 50% = guessing.
::result
Annual value of time saved
$9,100
Annual cost (tool + setup)
$740
Net annual ROI
$8,360
ROI percentage
1,129.7%
::how this calculates
Weekly value is your hourly rate multiplied by hours saved per week. Annual value scales that across 52 weeks and then multiplies by your confidence percentage divided by 100, so a 70% confidence shaves 30% off the optimistic number. Annual cost adds twelve months of subscription to your setup hours valued at your own hourly rate — your time is not free. Net annual ROI is annual value minus annual cost. ROI percent is net ROI divided by annual cost times 100, the standard CFO framing.
::worked examples
Solo freelancer, ChatGPT Plus, modest savings
Annual value = 75 * 4 * 52 * 0.70 = $10,920. Annual cost = $240 + $600 = $840. Net ROI = $10,080. ROI = 1,200%. Realistic for a freelancer who actually uses the tool daily for drafting and code.
Mid-career engineer, Claude Pro + API, heavy use
Annual value = 150 * 8 * 52 * 0.80 = $99,920. Annual cost = $960 + $3,000 = $3,960. Net ROI = $45,960. ROI = 1,160%. The setup hours and the $80/mo API budget eat into the headline, but the verdict is still 'obviously yes'.
Curious skeptic, light use, low confidence
Annual value = 40 * 2 * 52 * 0.40 = $1,664. Annual cost = $240 + $600 = $840. Net ROI = $824. ROI = 98%. The tool roughly doubles its cost — defensible but not a slam-dunk. Honest answer: try it for a quarter and re-run the calc with real data.
Operator burns setup, low savings — the negative case
Annual value = 60 * 1 * 52 * 0.50 = $1,560. Annual cost = $600 + $2,400 = $3,000. Net ROI = -$1,440. ROI = -48%. The tool is currently losing money. This is a real outcome and the calculator should say so plainly.
::what this does NOT capture
- ○Time-savings translate 1:1 to economic value. If you save 5 hours but spend them on lower-value work or LinkedIn, the real ROI is lower.
- ○Your hourly rate accurately captures opportunity cost. Salaried employees often plug in salary/2080, which ignores benefits, overhead, and the fact that you cannot literally sell freed hours back to your employer.
- ○AI tool cost is a flat monthly subscription. API-billed usage scales with workload and can spike 3-5x in heavy weeks — June 2026 envelopes: Claude 3.5 Sonnet $3/M input + $15/M output, GPT-4o $2.50/M + $10/M, Gemini 1.5 Pro $1.25-$5/M + $5-$15/M.
- ○Setup is one-time. In practice, model upgrades, new features, prompt-engineering iteration, and integration breakage create ongoing 1-3 hr/month maintenance not captured here.
- ○Confidence percentage is applied multiplicatively to annual value only. It does not discount setup hours or subscription cost, which are real regardless of whether savings materialize.
- ○Calculation is single-year. It ignores compounding learning curves (savings often grow in year two), tool price changes, and the chance the underlying model gets cheaper or better.
- ○No correctness discount. The calculator assumes AI output is good enough to ship. If you spend extra time fact-checking or fixing hallucinations, real savings are lower than your hours-saved input.
- ○No team or coordination cost. Multi-seat rollouts have governance, training, and security-review costs that a single-user calculator cannot capture.