Kaizen ROI Calculator
Put a number on your improvement: enter cost and savings to see payback, first-year net and ROI. Free, instant and fully in your browser.
First-year ROI
160%
first-year return
ROI = (savings + one-time − cost) / cost × 100
Payback is how long savings take to repay the cost; first-year net adds any one-time benefit and subtracts the cost. Use consistent currency for cost, savings and benefit.
What is kaizen ROI?
Kaizen ROI quantifies the financial return of a continuous-improvement project. It compares the one-off cost of implementing a change against the recurring annual savings it delivers, plus any one-time benefit such as freed-up working capital. The payback period shows how quickly the change pays for itself, while ROI expresses the first-year return as a percentage — a simple, defensible way to prioritise and justify improvement work.
How to calculate kaizen ROI
- 1
Cost the improvement
Add up the one-off cost to implement the change — labour, tooling, training, downtime.
- 2
Estimate the savings
Quantify the recurring annual savings (less scrap, less time, fewer defects) and any one-time benefit captured at go-live.
- 3
Read payback and ROI
The tool returns the payback period in months, the first-year net cash and the first-year ROI as a percentage.
Frequently asked questions
What counts as a one-time benefit?
A one-off gain captured at implementation rather than year after year — for example cash freed by reducing inventory, or scrap recovered. Keep recurring savings separate so payback and ROI stay meaningful.
Is first-year ROI the whole picture?
No. It is a fast screening metric. Improvements with recurring savings keep paying in later years, so a modest first-year ROI can still be an excellent multi-year investment. Use it to prioritise, not to dismiss.
How does Yamazo Studio help?
Yamazo Studio turns shop-floor video into time studies and waste analysis, so the savings you feed this calculator are grounded in measured before-and-after data rather than guesses.
Related lean tools
Quantify improvements with real data
ROI is only as good as the savings behind it. Yamazo Studio measures the before-and-after from shop-floor video — one offline Lean Operating Desk.
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