Manufacturing ROI Calculator

How this is calculated

Two value streams, both deliberately conservative. Every figure is your input; nothing here is a promise or a benchmark.

If you enter an annual investment, the calculator also shows simple ROI and payback:

What this deliberately leaves out

• Intangibles. Faster decisions, better retention, fewer quality escapes, and audit readiness are real but not counted here.
• Fixed-overhead absorption. Recovered uptime is valued at contribution margin, not full revenue, a conservative floor.
• Ramp time. Benefits build over months; this is a steady-state annual estimate, not month one.
• Your reductions are assumptions. The sliders are your expectations, not guarantees. Use ranges you can defend.

The value of one production hour should be contribution margin (revenue minus variable cost) for that line, not full revenue. To size downtime more precisely, use the downtime cost calculator; to find where the hours are going, start with the OEE calculator and the machine downtime guide.