Process Automation Efficiency Calculator
Estimate time savings, cost reduction, error reduction, and ROI when automating a manual business process.
Formulas Used
Time Saved per Cycle:
Time Saved = Manual Time − Automated Time
Process Efficiency Gain:
Efficiency Gain (%) = (Time Saved per Cycle / Manual Time) × 100
Monthly Labor Cost:
Labor Cost = (Process Time / 60) × Cycles × Hourly Rate
Monthly Error Cost:
Error Cost = (Error Rate / 100) × Cycles × Cost per Error Fix
Net Monthly Benefit:
Net Benefit = (Labor Savings + Error Savings) − Monthly Maintenance
First-Year ROI:
ROI (%) = ((Net Annual Benefit − Implementation Cost) / Implementation Cost) × 100
Payback Period:
Payback (months) = Implementation Cost / Net Monthly Benefit
Assumptions & References
- Labor cost is calculated purely on active process time; idle/overhead time is excluded.
- Error rates are assumed constant across all cycles each month.
- Automated error rate reflects residual errors after automation (e.g., data quality issues, edge cases).
- Implementation cost is a one-time sunk cost; ongoing costs are captured in monthly maintenance.
- ROI is calculated on a first-year basis: (Net Annual Benefit − Implementation Cost) / Implementation Cost.
- Payback period assumes steady-state monthly net benefit from month 1.
- References: Deloitte Global RPA Survey (2020); McKinsey & Company — "A Future That Works: Automation, Employment, and Productivity" (2017); IEEE Standard for Automation Efficiency Metrics.