Auto scrubber ROI and payback calculator
Estimate labor hours and dollars saved by replacing mopping with an auto scrubber, plus payback period and five-year net savings.
How the ROI is calculated
Labor is the largest cost in floor care. An industry rule of thumb puts it at roughly 85 to 90 percent of the total, so the return on a scrubber comes almost entirely from hours saved.
annual hours = area × cleanings per week × 52 ÷ cleaning rate
The tool runs that formula for mopping and for the scrubber, multiplies each by your loaded labor rate, and subtracts the scrubber's running costs. Payback is the machine price divided by the net annual saving.
What the model leaves out
- Quality gains. A scrubber removes dirty water instead of spreading it around. That improves appearance and can reduce slip risk, but this model gives those benefits no dollar value.
- Edges and corners. Most programs still need some detail mopping. Reduce the scrubber's rate if this is a large share of your floor.
- Redeployment. Saved hours are only real savings if they are cut or moved to other work.
For a deeper treatment read auto scrubber vs mop, total cost of ownership and our labor cost analysis.
Frequently asked questions
How fast does an auto scrubber pay for itself?
In facilities that wet mop 15,000 sq ft or more five days a week, a walk-behind scrubber often pays back within a few months to a year, depending on labor rates. Small or infrequently cleaned areas take much longer.
What labor rate should I use?
Use the loaded rate: hourly wage plus payroll taxes, insurance and benefits. That is often 20 to 35 percent above the base wage.
Is it worth buying a scrubber for a small floor?
Below about 5,000 sq ft, the labor savings are small. A micro scrubber can still make sense for hygiene and results, especially in restrooms and kitchens.
Should I include battery replacement?
Yes. Spread the expected replacement cost over the battery's life and add it to annual running costs. Lead-acid sets often last two to four years in daily use.